New Hubs, New Rims, New SRAM Rise 60 XC Carbon Wheels

SRAM_MTB_RISE_60_Hub_Front_Standard_MHAnnounced today, the new RISE 60 wheels from SRAM are built to address the demands of serious XC riders. During their development, the company focused on five key attributes: weight, inertia, engagement, stiffness and durability.

To help achieve these goals, the new rims have a hookless bead design. This is a first for SRAM, and is claimed to offer a lighter, stiffer, and more durable wheel.  READ MORE ->

Bike Check: Aaron Gwin, Troy Brosnan, & the Specialized Downhill Factory Team – Plus Actual Weights!

Aaron-Gwin-Specialized-Demo-650b-Carbon

Last week during the grand unveiling of the new Specialized Demo, we had the opportunity to discuss the development of the bike with the engineers, product managers, and industrial designers who designed it.

Also on hand where several of the professional athletes who helped dictate the new geometry, tested the suspension kinematics, and who will ultimately prove just how fast & hard these rigs are capable of being pushed.

Drop past the break to see how their race bikes are kitted out, and how much they weigh!

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Derby Rims Ups Options & Inventory, Adds 40mm Wide 26″ Carbon Rims

Derby Rims lightweight wide carbon fiber mountain bike rims

We first spotted Derby Rims at Interbike last year, where the brand was just seeing the light of day as founder Ray Scruggs carried a couple samples around the show floor.

Following our post, he got flooded with orders and had up to a 2-1/2 month back order. Fortunately, his factory has expanded, so now he’s got inventory and even expanded his offerings to include a 40mm wide 26″ model. He’s also added different layup options, offering the original lightweight XC layup, plus new Heavy Duty and DH layups for heavier or more abusive riders. Depending on which size wheel, you can pick from two of the three…

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Bikerumor Pic Of The Day: More Iceland Fat Biking

bikerumor pic of the day fat biking iceland

Photo submitted by Christophe Noel, “Fatbiking Iceland is the thing to do these days. Here’s my shot from two weeks ago.”

We always love to see your photos and would like to show them to the world here on the Pic Of The Day. Send in your photo with a brief description here.

Hutchinson Teases Next Generation Python2 Mountain Bike Tire

hutchinson-python2-mountain-bike-tire-teaser

Hutchinson’s Python mountain bike tire has carried Julien Absalon to multiple World Cup XC wins over the years. It’s combination of low profile center knobs and fast rolling, near continuous center line provided the minimal rolling resistance needed to go fast, and their premium Race Riposte rubber compound and taller side knobs provided the grip.

Now, Hutchinson is set to release an updated Python2 at Eurobike. This teaser shot suggests superficial changes are limited to a bit of interstitial patterning around the center knobs, so we’re guessing the substance is more tech oriented. We’ll have the full breakdown next week at the show. Until then, pics of the current model after the break so you can make your own comparison…

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Giro and Red Hook Crit Team Up for Limited Edition DND Glove for Barcelona

redhook crit giro dnd glovesv

Following in the footsteps of the Giro X Cinelli C Wing gloves and the N0. 7 gloves for the Brooklyn Red Hook Crit, Giro has unveiled their latest limited edition. This time the gloves are to commemorate the Barcelona edition of the famous fixed gear criterium which will take place on August 30th at Parc Del Forum in Barcelona. Emblazoned with the Red Hook Crit and Rockstar Games logo, the DND gloves will be available at the Barceloneta Bikes x rhc pop-up shop or at the race.

Gevenalle Adds Up-Armored Front Derailleur to Cyclocross Gruppo

Gevenalle BURD Front Derailleur

Gevenalle, formerly Retroshift, just released the BURD  Front Derailleur/Chain Guide for cyclocross. Like their BURD rear derailleur, the “Blatantly Upgraded and Rebranded Derailleur” is a hacked, top-of-the-line Microshift component that they rebuilt to better serve ‘cross racers who demand reliable shifting in brutal conditions. The derailleurs, along with their standard pull, long pull, and hydraulic shift levers; and cassette spacer are giving cyclists an affordable and reliable – if not particularly pretty or light – alternative to Campagnolo, Shimano, and SRAM.

The folks at Gevenalle replaced the lightweight carbon Microshift cage with a smaller, rigid steel piece of their own design, and made some other secret tweaks, to make a derailleur that will best suit the relatively small gear range but huge shifting loads that differentiate cyclocross from road drivetrains. Gevenalle also claims that the FD is ideally suited to single ring chainguide use, thanks to limiter screws that allow the reinforced cage to be dialed in exactly where you want it.

Price, specs, and their service plan after the break…

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The Unstealable Bike? With Yerka Project, the Bike IS the Lock

Yerka project unstealable bike frame lock (2)

As more and more citizens look to bicycles as a means of transportation, bicycle locks seem to be under increased scrutiny. Many companies are looking for ways to improve the portability and effectiveness of current lock designs, but some bike designers are looking at it from another angle. Instead of carrying around bulky, heavy locks, why not make the bike a lock. After getting their own bikes stolen, that’s exactly what three engineering students from Chile are setting out to do with the Yerka Project.

The idea behind the project is pretty simple – most lock can be broken while still leaving the bike intact. When the lock is part of the bike, if thieves try to break the lock, it will essentially break the frame rendering the bike unrideable. Continue on to see the Yerka Project in action…

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Suspension Setup Series #5: Is Your Suspension Humming the Right Tune?

bikerumor-suspension-setup-series-tune-markers

Many shocks have tune markers on the outside to show how the frame manufacturer spec’d them. It’s Greek to most of us, but suspension tuners will use that info as a starting point.

Like a song stuck in your head, the internal damping tune of your suspension is what makes it sing. So far, we’ve covered everything you can do yourself: Setting Sag (Part 1), dialing your compression (Part 2) and rebound (Part 3) damping, and adjusting air volume (Part 4). For the vast majority of riders, these user-friendly adjustments are going to get your mountain bike tackling the terrain like a champ.

But, as with anything made to work as well as possible across as broad a spectrum as possible, there’s always a chance it’s not going to work right for you. And if none of the other tricks worked, you could look at a new suspension fork or shock that has more adjustability built in. Or you could just order a new shock with a softer or firmer tune directly from Fox, Rockshox, Manitou, DT Swiss, Magura or whomever. That might be an easier solution then sending it off for custom tuning, but it would be missing the point.

“For a custom tune, we consider rider weight, riding style and, for rear shocks, the leverage ratio curve,” says Kevin Booth, founder of Suspension Experts. “The manufacturers don’t always have all of this information available to them, so it’s not possible to offer the perfect fork or shock out of the box. So while stock suspension comes out of a factory designed around an “average” sized rider, it has to be able to function for a rider that is anywhere from 100 lbs. to 300 lbs. It’s easy to see the opportunity to make it work better. To accommodate this broad range of potential riders, the external knobs tend to offer very coarse adjustments …swinging wildly from one extreme end of the adjustment range to the other. A suspension tuner’s job is to narrow that range of adjustment to work well for a particular bike (leverage ratio curve) and rider (weight).”

That means even a different stock tune is still going to be made to fit a very wide range of riders rather than you, specifically. So, how do you know when it’s time to look at a custom tune?

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