Video: FiberFix Jumps the Shark (Tank) to Fix Your Bicycle

Derek at FiberFix just sent over this video along with this note: “BikeRumor may consider this a total joke, but I think it’s something to consider (albeit slightly impractical).”

Attention, grabbed, so we watched the video. Pure awesome. A phone call later and we can now tell you how it works:

FiberFix was a Shark Tank success and is essentially a woven fiberglass fiber tape presoaked in a water-activated resin. To use it, simply soak the tape in water for a second, then tightly wrap the object to be fixed. Let it cure for 10-15 minutes and you’re good to go. They say it’s as strong as steel, extremely rigid and waterproof, yet can be sanded and painted. Sounds like a good emergency item to keep in the pack for backcountry rides or touring – it could easily get you back home.

fiberfix-instant-fix-fiberglass-tape-packageThe resin within the tape doesn’t have adhesive properties, so it won’t work as a patch. It needs to be wrapped around the tube to have any strength. Fortunately, bikes use tubes. To make it “stick” and not have the tubes simply slide out, they recommend scoring or sanding them so the resin can grab into the microscopic grooves and grab hold.

It’s recommended for any material – carbon, alloy, steel, titanium, etc. Heck, it can even close off leaking hoses, so if you sliced your brake hose but didn’t lose fluid yet, it could potentially save enough braking power to get you back home without total failure.

At just $6 to $10 for a 40-to 60 inch roll (various widths available), it’s cheap insurance. Rated from -50ºF to +300ºF. Check ’em out at

Check out the gallery on their website, too. There’s a carbon/bamboo bike “fix” and plenty of other entertaining projects users have submitted.


SamSkjord - 07/18/14 - 10:39am

Definitely looks more robust than using GorillaTape, might have to grab a roll for the Bikepacking toolbag.

MikeC - 07/18/14 - 10:40am

Does the kit come with gloves and sandpaper or an abrasive pad…?

reverend dick - 07/18/14 - 11:22am

I like everything about this.

mike - 07/18/14 - 11:25am

Can I patch a tube with it?

The Conductor - 07/18/14 - 11:29am

Call it “Gravel-Grinder-Ready” and they will sell like hotcakes!

Seriously, it could be a great back-country-adventure-ride-touring fix!

James - 07/18/14 - 11:34am

If it’s that stronger, I wonder if you can build a bike out of it.

Tyler Benedict - 07/18/14 - 12:44pm

James – It might be a fun way to practice building a frame, but you’d essentially be building one out of prepreg fiberglass. That said, I was thinking the same thing.

Al Boneta - 07/18/14 - 4:07pm

Contador could use some of this

rickyd - 07/18/14 - 4:20pm

Did they already talk to these folks (also in the bike industry) with the same name? They’ve been around for at least 20 years…

AAROWN - 07/18/14 - 5:23pm

So this is pretty much just re-labeled 3m casting tape?!

Kerry - 07/18/14 - 10:40pm

I’m with AAROWN, this is just repackaged instant cast material. How did they get around 3Ms patents?

rhoop - 07/19/14 - 12:28am

@aarown @kerry The 3M stuff is for medical uses to immobilize limbs. Different materials, properties and use.

KSL Graphics - 07/20/14 - 12:56pm

It’s a cast for your bike.

Matthew - 07/25/14 - 10:40pm

@MikeC: yes, you get gloves and sandpaper in the box. The rip-away envelope has the tape. You have to provide a bucket or sink with water.

Not sure how useful the stuff would be for saving a backcountry ride… They’re not showing the 12+ hour curing time before it’s full strength.

Also: intentionally crashing without a helmet? Genius.

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