BBinfinite Smooths Intolerances, Perfects PressFit Bottom Bracket Performance

BBinfinite pressfit bottom brackets with direct fit BB30-to-24mm bearings for Shimano and Campagnolo

Raise your hands if you’ve ever installed a new bottom bracket and it didn’t spin as freely as you’d like. OK, now raise ‘em if you’ve ever had creaking in your BB. That everyone? We thought so.

And so did Wes Wolfenbarger and Gary Mailhiot, Jr., founders of BBinfinite. Especially peeved after Gary’s brand new $6,000+ Wilier Cento1 road bike came with cheap plastic adapters to fit Campagnolo crankset to the PFBB386 frame, they decided to do something about it.

“What we found was that pressfit frames, while technically built with a 46mm inside diameter BB hole, had a wide variance of actual measurements,” Wes told us. “Those measurements could only be off by 1/1000th of an inch, but when you add up those variances across the frame and inside and outside diameters of any plastic cups holding the bearings and adapters to fit various crank spindles, you end up with enough to wreak havoc on bearing performance. It can cause too much compression and/or ovalization, which adds friction to the system.

“Then, if a frame’s left and right cup interfaces weren’t 100% in alignment, you could end up with very slight misalignment. Once the crank spindle is forced into a misaligned system, that’s putting uneven lateral stresses on the bearings, which adds even more friction to the system. Put them together and you end up with a crankset that spins poorly and sucks power.”

And to add insult to injury, all of that can lead to mentally debilitating creaking that seems impossible to resolve. Their solution? A one piece bottom bracket module that ensures absolute precision alignment and a perfect fit in the frame…

Wes is a mechanical engineer that’s worked for Competitive Cyclist and other bike shops. Gary’s worked in motorsports building race car engines as well as worked in bike shops. Together, they bring plenty of engineering and tech experience with cycling retail and repair knowledge. They’re based in Little Rock, AR, and all of their prototypes and installation tools so far have been made there, too. Production bottom bracket shells and parts will be made in New Hampshire by a supplier that makes aerospace components, which provides the high tolerance manufacturing Wes and Gary wanted.

BBinfinite pressfit bottom brackets with direct fit Specialized OSBB and Cervelo BBright adapted to 24mm bearings for Shimano and Campagnolo

BBinfinite’s one-piece outer shell holds both bearings in perfect alignment with each other and in a perfectly round shell, so there are no uneven pressures on the outer race. Between the two bearings is a lightweight alloy tube that sits flush against the inside edge of the inner race. This prevents preload from installing the cranks from pushing the inner race out of alignment with the outer race. The result is a balanced, aligned groove for the bearings to roll in.

Since everything’s aligned perfectly with zero undue stresses on the bearings, it rolls super smooth. In fact, every video on their website that shows the cranks spinning is with the ABEC3 steel bearings. Ceramic bearings are available as an upgrade, though.

The two frames that started the idea (beyond Gary’s Wilier) were the Specialized OSBB and Cervelo’s BBright, which they say were notorious for having bottom bracket interface issues. Those are shown above and are available in three versions – a standard model to fit 30mm spindles, and Shimano and Campagnolo specific versions that eliminate the need for reducers or adapters to run those brands’ 24mm spindles in a frame designed around BB30 cranksets.

BBinfinite-pressfit30-PFBB30-and-BB30-one-piece-bottom-brackets

But, as they developed those two versions, they added a PFBB30 version for Cannondales (or any other PressFit30 frame). Those led to even more, and now they’re launching with versions for every press-fit frame iteration there is. And all will offer a Shimano and Campy specific model that eliminates adapters. All but the PF86/BB86 versions will also have a standard model that fits 30mm spindle cranksets.

BBinfinite-OSBB-and-BB86-campagnolo-bottom-brackets

Campagnolo models are shown here without the bearings, but they include them. Campy UltraTorque cranksets are sold with stock bearings already pressed onto the spindles, so you could slide them into BBinfinite’s module as-is, but to provide all customers with the same package and same quality, you get new bearings with the module. Models shown are OSBB (left) and BB86, others are available.

For mountain bikes, they offer OSBB and PFBB30 to fit the 73mm wide bottom bracket shell, both with standard 30mm and Shimano 24mm bearing options.

bbinfinite-PressFit-30-DirectFit-Shimano

BBinfinite’s bottom brackets made to directly fit Shimano cranksets use a 25mm inside diameter bottom bracket and come with these “top hats”, a similar design to what Shimano provides. They slide into the bearings, then the crank’s spindle slides through them. This prevents metal-on-metal contact, which could cause creaking or other noises.

They all slide into the non-drive side of the frame except for the Cervelo BBright Direct Fit Shimano/Campagnolo. Because the fit is so good, they only spec a light grade thread lock to hold it into the frame. That simply keeps it from creeping out, and the assembled cranks also help keep it in place. They do require special tools to install -custom plastic adapters that work with the Park Tools press- and are included with each BB.

Wes says they’ve been testing the design under local athletes since late 2012, and some units have 12,000+ miles on it. He added that not a single prototype or test unit has needed any bearings replaced even through a full race season under some very, very talented riders that can not be named yet.

BBinfinite pressfit bottom brackets with direct fit BB30-to-24mm bearings for Shimano and Campagnolo

All models will be available in anodized red or black, and Cannondale fans will be able to get them in green, too. They’re working on trying to match the Shimano dark gray/blue finish, too, but so far haven’t been able to nail it. Weights range from about 50g up to 85g depending on model.

Everything comes with a wave washer, three spacers and dust shields if appropriate. Retail isn’t set yet because they’re using Kickstarter to get things off the ground. Check out the campaign here and nab any model BB with the standard steel bearings for just $150. Pledge $250 and you’ll get the upgraded ceramic bearing version.

Since they’ve already finished all the R&D and prototyping, the meager $12,000 ask is simply to get production up and running. Shipping is expected by early September if the Kickstarter campaign is successful. If not, they’ll continue raising money and launch them as soon as they can.

BBinfinite.com

Comments

AbelF - 05/16/14 - 5:22pm

Finally, A solution to a problem that was brought on by a solution to a problem that didnt exist!!! Surprising how some people still believe pressfits are a valid BB design.

fred - 05/16/14 - 5:39pm

Seriously, can someone please tell me what was wrong with threaded bottom brackets? (Aside from smaller profit margins)

Chris - 05/16/14 - 5:50pm

Pressed in bearings are not a bad design and the fact that they’re used in lots of non-cycling applications proves it. It’s just that companies today are doing it on the cheap, even at the high end, because bikes these days are basically designed to be disposable toys not meant to last more than 4-5 years. Alex Singer used pressed in bearings on his bikes and I’ve seen several that were 30+ years old and still going strong on their original set of bearings. As for the need for oversized axles and stiffer bottom brackets all I say is this: Eddy didn’t have them an he won the Tour 5 times. Unless you’re stronger than him you probably don’t “need” one either.

Aaron - 05/16/14 - 5:56pm

Three words:

Threaded
Bottom
Brackets

Jose - 05/16/14 - 6:09pm

It has nothing to do with stiffness. That is just a side benefit.

The press fit stuff came about so that we didn’t have to manipulate the larger than steel, Alloy tube sets. It allowed us to use a straight shaped tube an weld it to a bb shell with a simple miter instead of a manipulated tube set.

Then with the advent of carbon being used it allowed us to have soften bends as now we were using larger shells.

It is also much simpler to produce. To face and tap a bb shell, takes significant longer and requires more precision at an increased cost. Press fit shells are much simpler to manufacture, saving production time and reducing costs.

The resulting stuff was nothing but a happy coincidence.

There isn’t a whole lot new in terms of BB options. Of we take all of prior generation of threaded bb’s, we have more options. Between JIS, Italian, French, ISIS, Octalink MTB, Octalink road, powerspline and then add spindle lengths. Then if we take the following generation of thread stuff like HT2, GXP, FSA’s three sizes.

PF bb’s are just a third generation of affixing a crank to a bicycle and a method that better suits the materials being utilized at the moment.

But what the hell, let’s go back to 6spd down tube shifters on steel bikes, because that’s what an absolute freak of nature used 20+ years ago.

Roy - 05/16/14 - 6:21pm

Love this! No matter what comes down the pipe, smart people can make it better. Precision machining AND that green loctite are a real plus when it comes to squeek free. sorry to hijack, but the new Wheels Outboard bearing system is really good too and it has threads for those that miss them so much.

RIP

Peter - 05/16/14 - 6:40pm

Pressfit BBs are to the bike industry what space saver spares are to the auto industry. At an Intense demo, in front of everyone I told the rep I won’t buy this bike because of the bracket. He replied with some marketing bullshit to which I paid no mind. Then I told the present LBS he would have to throw in one of these type products just for consideration.

How about we just boycott such frames and the companies cost cutting? The power of the wallet gives us consumers immeasurable lobbying influence.

andre - 05/16/14 - 6:43pm

PF is lighter!

Dr.Unk - 05/16/14 - 7:01pm

SQUANDERED WATTAGE!

Ripnshread - 05/16/14 - 7:05pm

Looks like a 90s Shimano cartridge bb.

Baz - 05/16/14 - 7:11pm

Another vote for threaded BB shells. Please just bring them back. I’ll do anything. I am sick to death of creak-fit.

pfs - 05/16/14 - 7:32pm

I guess I still don’t see what holds it in the frame aside from the manufacturers word. Loctite doesn’t count. Everything else looks good though. I still like the praxis version better, because it has a mechanical system holding it together.

Todd - 05/16/14 - 8:05pm

Threads aren’t even close to perfect, where a press fit offers much more contact. If a soft thread galls up, you’re f@cked. If a press fit creaks, it’s because there is movement, which is very easily remedied if you know how to augment a press fit. Seems many of the people who comment don’t know enough about mechanical assemblies, just how to bellyache about what they don’t understand.

john - 05/16/14 - 8:11pm

i like it, looks like a big step in the right direction

fred - 05/16/14 - 8:42pm

If press fit is so great why do there need to be aftermarket fixes for $3,000 bikes?

Troy - 05/16/14 - 8:47pm

No one will ever do press-fit BB’s as well as Klein did in 1992.

Stew - 05/16/14 - 9:02pm

I installed one of these last week in a Cervelo R5.
Super easy….Loctite and all.
Perhaps the smoothest crank spin I’ve seen in 20 yrs.
Game changer….

Todd - 05/16/14 - 9:10pm

@Fred… Maybe your builder isn’t doing it right? Maybe it’s just an overpriced frame? 3K can be spent well or poorly, your point isn’t made very well.

Standard - 05/16/14 - 9:59pm

The oversize 30mm spindle started with BB30.

Goto http://www.bb30standard.com

This is an accurately machined 42mm diameter bearing interface in the frame.

Unfortunately Press Fit 30 (PF30) from SRAM which is 46mm and has the 42mm bearings in plastic cups was used by frame makers to make carbon frames, to get a lighter frame weight.

The result was a less accurate hole (than SRAM spec) in the carbon frame and bearings housed in plastic pressed into the frame. So your frame now has a plastic to plastic interface!

Peopling now mix up BB30 and PF30 as the same thing. They are not.

These BBinfinite adapters basically convert a PF30 frame back to BB30…and the result is smooth running bearings.

If your looking to buy a new bike then one with the (alloy) BB30 interface as part of the frame is proper BB30 and should provide smooth trouble free operation as BB30 has done for almost 15 yrs. (like anything, provided it’s made to the correct tolerance and assembled correctly)

43king - 05/16/14 - 10:07pm

I think this bb will slip out from oneside.

Willem - 05/16/14 - 10:55pm

ive worked on bicycles for years and ridden them even longer, i dont see any advantages to a press fit system. Threaded BB is the easiest to work on and most reliable. kudos to companies like santa cruz for keeping it alive.

el duque - 05/16/14 - 11:15pm

One of my mechanics used cellophane to make a pressed in work. That’s sound technology. I’m not hating tho. People who buy a new bike every other year drive sales. God I need a new job!

anonymous - 05/17/14 - 12:01am

Reinventing the cartridge BB

ceebee - 05/17/14 - 12:17am

Another vote for threaded BB.

Der_kruscher - 05/17/14 - 12:38am

“Eddy didn’t have them an he won the Tour 5 times. Unless you’re stronger than him you probably don’t “need” one either.”

Ahh…the Eddy argument. I’ve never once seen it used in a way that made any sense at all.

Gary - 05/17/14 - 12:48am

For those concerned about retention, let me assure you that a properly calculated friction fit is adequate without the use of a retaining compound. The bearings in the front end of every front wheel drive car on the road are press fit. All the suspension bushings are press fit as well. Bearings in motor cycle wheels? Press fit. Retaining compound should only be seen as added insurance as long as the press fit is properly calculated. A 0.002″ fit is the difference between a piston revving smoothly at 7,000 rpms or becoming locked up in the cylinder to the point that you have to get it out with a hammer. So, the proper numbers are the real issue here. Press Fit is here to stay. I’m surprised the bike industry is so late to the party.

A carbon moncoque is stronger than you imagine. Honestly, it doesn’t “stretch” out when something is pressed in.

By going all press fit, the industry is reducing the incidence of cracking. Carbon BB’s with aluminum bonded in for threaded cups suffer from uneven expansion during temperature changes which leads to delamination issues, typically seen as cracking. Also, corrosion develops at the interface of said dissimilar materials. Press fit solves this.

Just a thought

K11 - 05/17/14 - 1:13am

the whole press fit whatever, was set up to fail. Walking, creaking, alignment. I will never own or invest in a frame that has a press fit bb system. Why do you think there are all these crutches, fixers and problem solver things popping up?

the sad thing is there will be SOME great frames in the landfill or being recycled because of pf bb issues as the frame ages. don’t agree? well that’s your problem, because my frames have threads.

JasonK - 05/17/14 - 2:06am

I’m confused; Wes at BBInfinite is supposed to be a mechanical engineer “who’s worked at Competitive Cyclist and other shops.” But bike shops don’t employ mechanical engineers. They can barely afford to pay self-taught mechanics, let alone degreed engineers. So in what sense is Wes a mechanical engineer?

Cesar - 05/17/14 - 2:42am

Please bring them to MTBs to!!

MotoPete - 05/17/14 - 2:52am

ENDURO BEARING XD-15 BB = F1 performance + tank durability

Alex - 05/17/14 - 2:54am

Jason,

Let me clear it up for you:

People do things for reasons other than money.

Being a degreed engineer is not mutually exclusive with working at a bike shop.

Perhaps he worked at a bike shop to pay for his degree.

-A degreed mechanical engineer that still works in a bike shop (because I love bikes)

Bill - 05/17/14 - 8:26am

All this press-fit hate….

So all of you wish your headsets were still threaded?

BB92 allows for shorter chainstays. More surface area to bring in the stays means less radical manipulation required for tire fit, means shorter chainstays.

Alexander - 05/17/14 - 9:11am

Headsets have a limited amount of movement. So thats not really a comparison.

As another poster said. pressfit bearings are a good engineering solution. It works great in gearboxes/engines etc which have a lot more material and stiffness than a bikeframe. Or they are used in a hub style application. Which can be finely machined for a good fit.

Bike BB’s are difficult to machine properly (who has a lathe big enough to fit a frame in?). Also they need to be light so more material and stiffness are a tradeoff for weight. Using threads with a properly machined bearing cartridge (like these and old school square tapers) is probably the best engineering solution. These cartridges with a threaded fit to the frame would be the next standard..;) (yups standards, we have lots of em).

K11 - 05/17/14 - 12:44pm

@Bill. if my headset was oriented sideways like a bottom bracket and experienced the same loads and torque that a bottom bracket does…(which obviously isn’t reality) then YES i would like my headset to be different.

Eric - 05/17/14 - 12:59pm

Hear, hear, Alex!

-Another degreed mechanical engineer who works part time in a bike shop.

Tim - 05/17/14 - 5:25pm

@everyone who makes rational arguments about how press fit is better: then why, IN FACT, do so many people complain? If it’s better in theory but worse in practice…. then sorry, it’s worse. If framebuilders in fact make frames with poor tolerances, and press fit BB’s need good tolerances, that means press fit BB’s on such frames work badly. Some have argued that the problems with press fit BB’s come from bad mechanics. Two things about that- installing a BB should not require a crack mechanic; I know good mechanics who have problems with press fit BB’s.
If it doesn’t work, saying it SHOULD work is meaningless.
How many ways are there to say it? Press-fit gets a lot of complaints.

MarkV - 05/17/14 - 6:01pm

Two thoughts-

1) Yes, threaded bb’s are simple and easy….for metal frames. With carbon (remember this wonder fiber!), it makes things comicated and prone to delamination, creaking and failure by bonding a metal sleeve into a light carbon frame. This is why Press Fit has returned (been around a while- Ritchey, Klein, Fat Chance, Merlin, etc) and if done “properly” and with some care and sometimes Loctite 609, it can function well. I ride and race, spending a lot of time on carbon bikes (8-9k miles a year) on Press Fit bb’s and both stock PF86/92 and PF30 using Parlee adapters w/Campy Cult bearings adapted for Shimano XTR, have held up well. This new BB above, Praxis and similar designs up the ante on even better function for PF30 and BB30, aligning the bearings to avoid loading in these type bb shells. It makes sense as PF bb’s evolve and yes, they are here for the long haul.

2) Visiting IBD Service dept’s dealing with this type of BB, is an eye opener. 90% or more are clueless and misinformed on how to install Press Fit bb’s using a little common sense and maybe more detailed Bike Manufacture direction. If a Press Fit BB is tight, use grease, if it is a looser fit use Loctite 609 and always use a BB press and align the cups. The rubber mallet is not a press! Teflon tape has no use here! Friction paste is not the best for bb’s!
New tech takes new and bright ideas, along with experience, some common sense and a little insight to achieve the desired goal……a BB that works, doesn’t creak and is durable. Where do I come off saying this…….35 years of being a teaching bike mechanic and always willing to learn new bike tech/solutions.

End of story, let the mayhem begin…..

Fred - 05/17/14 - 9:37pm

Some good comments on here. There definitely appear to be some frame design benefits to PF. Especially for carbon. I guess the biggest disadvantage is that I will need to buy a bearing press if I want to do BB service myself, which is a heck of a lot more $ than a crank puller and threaded BB tool, but not that much compared to the price of decent carbon bike.

shopwhore - 05/18/14 - 2:33am

I DGAF what BB standard my frame has. That’s because I go through 2-3 different road bike frames a year. (Same amount of mountain bikes) All I have to say is I spend significantly more time quieting BB30/PF30/OSBB/BB386/Whateveroversizedspindlestandard then any other threaded BB.

If I was some shmuck that dropped $5600-8500 on some fancy new bike and my BB wouldn’t shut the $*&# up for longer then 200 miles or one ride in the rain I would be pissed too.

RickT - 05/18/14 - 3:03am

@Rico: The C60 is a neat solution, but remember that you still have to press a bottom bracket into that shell, which would give you all the same press fit problems as if you had a normal shell, although with their metal insert (which can’t delaminate) maybe they are able to get the inside to a tighter tolerance than with an all-carbon shell.

Hear me out on this one. As much as we hate new standards, there should be a new frame standard to be used only for metal frames. The frame would be internally threaded like BSA but the tube would be a larger diameter to house a 30mm spindle and allow frame manufacturers to bring larger tubes to the BB junction, all of this just like PF30 but with threads.

If this standard existed for metal frames, then owners of it would simply buy a different BB but use the same 30mm-spindle crankset with its lighter weight and increased heel clearance over BSA. We could call the standard AwesomeThreaded30 or something… I don’t know I’m not a marketing guy.

Carbon/PF30 frame owners could use one of these more secure pressfit BBs in the style of Infinity or Praxis or Wheels Mfg. or Wishbone, while metal/AwesomeThreaded30 frame owners would need threaded cups, like BSA outboard BB’s but a larger diameter and with a larger spline pattern so that you can screw it into the frame. Female splines as on square taper BB’s would force the bearings inboard, so instead of that, the bearings would be semi-external and the frame shell a bit narrower than the common 68mm to accommodate for male splines and a stop on each cup to sit against the frame like on current external BB’s.

The benefit of having this standard is that metal frame owners would only need a certain wrench for BB installation and replacement (no headset press and less room for error which could plausibly mean more serviceable) and get to use a crank with a fatter and narrower spindle having lighter weight and more heel clearance, while carbon frame owners would need a headset press and possibly have to rely on Loctite more heavily, but at least their frames won’t get trashed from delamination/cracking, and one could assume they would be better able to afford to let a mechanic install and replace their BB.

Menga - 05/18/14 - 2:49pm

Freestyle bmx use press fit since forever and we never had problems with it. Using a reamer to re-machine the B after welding it’s enough to assure presicion. What i can’t understan is why MTB don’t use the inner race spacer to avoid race misaligment.

Padrote - 05/18/14 - 5:39pm

MarkV – bottom brackets aren’t any more prone to failure than any of the other 15 aluminum pieces bonded into carbon frames. It certainly isn’t the fault of the bottom bracket standard if the manufacturer fails to do this correctly. How are pressfit bottom brackets that can’t be manufactured within a tolerance reasonable enough to be installed without hacking them in with various substances any better?

Also anytime someone mentions their mechanical engineering degree I take their opinion with several extra grains of salt. Generally those folks are just extra forthcoming with their bad opinions.

MarkV - 05/18/14 - 11:47pm

Hi Padrote,

Many newer carbon frames no longer bond or co-bond aluminum into the frames or forks. This process allows a much stronger and uniform finished structure and has opened the Press Fit bb can of worms. All I said is Press Fit done well for bb and installation can hold up to normal use. Done wrong, it will definetly have issues. Sometimes you have learn new things and embrace new ideas, it is how all the cool bikes and parts have become both lighter and stronger…..for the most part. Though I too am slow to change, if it makes sense, show me how to do it right.

As far as a degree, no Mech Eng. degree, just real world experience and many many years in the tech and racing trenches of an Industry I love. To me the best mechanics are the ones that ride the heck out of what they install, fix and use. Pretty simple and effective. Hope that clears up anything misinterpreted.

goridebikes - 05/19/14 - 12:35am

none of these things would be needed if manufacturers were interested in investing in the quality control and tooling required to adhere to proper tolerances.
As was noted before, the original BB30 (aluminum cannondale) frames have had nearly no issue. Why? Because each bottom bracket was precisely machined to fit.
Cervelo amongst many others is guilty of shipping frames with out-of-spec bottom bracket shells that lead to bearings which may be installed correctly turning to crap, from too much compression on the bearings (shell too small), too much space (shell too large), faces not parallel, etc.

The BB30 standard is excellent when executed correctly. PF30 was supposed to be an enhancement, but is so poorly executed by nearly all bike manufacturers that it’s a perpetual problem.

That being said, many mechanics are totally incompetent with regards to how press-fit items (headsets, bb, etc.) should be installed, and there’s a lot of anecdotal / opinion-based “fact” out there…

Finally, many people complaining of creaking and hailing threaded BBs are failing to see that half the time it’s improper installation, and the other half it’s you riding in the mud, water, beating the crap out of the bike, and being surprised that the bearings need servicing or replacing.. the pressfit bearings are more exposed (although why they can’t be better sealed mystifies me) and so they’re more susceptible to wear.

Bearings are a wear-and-tear item people. They have a lifespan.

Tim - 05/19/14 - 11:31am

This thread lost track of the product described in the article. All the controversy and bad feelings about press-fit bottom brackets neatly illustrate the need for the product, which is of course not an indication either way of how well it works.

Wiz without - 05/19/14 - 12:19pm

I don’t understand why so many people get upset about different BB standards, or some other new/differnt anything, also get off my yard! Not just BB standards, any BR post about something new that someone is trying, people rail against it like some kind of offensive heresy has been imposed upon their current biking religion. Even well established norms (29er, 650b, fatbike, lefty, etc) still get some people so upset, I wonder why they like biking at all or why they think everyone should like what they like and no new technology, thank you (Although, I do aggree that a lot of kickstarters are easily copied or just bad physics: z-torque crank got me pretty upset).

I never felt such devotion to a BB standard that I insisted all my bikes and everyone else’s have the same.

J - 05/19/14 - 2:58pm

And… you just voided your warranty.

Tim - 05/20/14 - 5:30am

@J- awesome point.
@Wiz- Yes, some of the people complaining about press-fit in this thread are people who are against everything new. So what?
The objections to 29ers were subjective ones involving taste in wheel size and ride characteristics and an objective one about one new standard being created. In other words, nobody said 29ers don’t function, they said they functioned differently.
The objections to press-fit are objective ones- one about MANY new standards being created, and one about a rash of problems stretching back several years.
In a few cases, old stuff is better.
If press-fit becomes reliable, and continues to be that way for three or more years, I MIGHT consider getting a bike with it.

alvis - 05/21/14 - 1:51pm

press fit or threaded just decide on ONE ‘Standard’ and stick to it!!!!

Steve - 05/22/14 - 12:35am

I found this video very disrespectful to all bicycle mechanic. For them to say that a professionally trained mechanic can not install a bottom bracket correctly? What the hell? Don’t get me wrong, it is a very well engineered product but for them to say that a mechanic can not install a bottom bracket with out it creaking is very disrespectful. Especially with a lot of good bottom brackets in the world. I got 17,536 miles out of an Ethirteen bottom bracket. With no issues of creaking.

I believe this company owes a huge apology for disrespecting the mechanics of the world. Mechanics that make a living off of what they do and the passion they have for the industry.

Tony - 05/22/14 - 4:35pm

PF30 = Perfect Fail
BB30 = Big Bust

As so many other folks have stated, they attempted to fix something that wasn’t broken by creating this BB/PF30 garbage. Enough proof has been given that threaded BB’s are/will always be the most dependable option available. Thread it and forget it!

Tom - 05/24/14 - 1:24am

Pressfit… UGH! No thanks. I will never own a bike with a pressfit BB. This coming from a professional bike mechanic.

k - 05/24/14 - 10:10am

Threaded bottom brackets will win this war.

Jimbo - 09/05/14 - 4:49pm

Pressfit is hear to stay, and I hope the BBinfinite is helpful. Website was sold out. My training bike is aluminum with threads, and I love it because I don’t have to hear all those creaking sounds my carbon bike makes.

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