Finish Line Fiber Grip Carbon Fiber Bicycle Assembly Gel – Reduces Slippage, Prevents Over-Tightening, Non-Toxic, Clear Formula for Stems, Handlebars & Seat Posts, 1.75 oz

Rescued me! I had a stubborn seat post rail on my Cervelo S3 that just kept on slipping. This gel really helped me to solidify the connection and avoid any slippages on my long rides. Lifesaver!

Worked really well. I could definitely tell a difference in ability to slip in carbon fiber connection points. Doesn't totally eliminate slippage, but significantly reduces it. It doesn't take much either, a little goes a long way.

It works . Convenient size.

I bought this one because of my carbon frame and carbon seat post slipping. I really like that product, I can't even move it with force after using the gel. Recommended!

I store it hanging by the tag with the opening at the bottom. It liquifies a bit when you open the cap (meaning liquid separates from the gel stuff). I don’t know if this is normal or if you’re supposed to squish and mix it before using, but seems good and grippy.

Was recommended this product for a slipping Peloton seatpost. My seatpost would slip 1 to 2 numbers depending on the length of the ride. Applied this product to post and no more slipping. I can tell I will eventually have to reapply, since the seat gets moved around, share bike with my wife. But so far, it's been a month since initial application.

I had an issue that the seat of my Peloton bike constantly fell during rides. I thought I was too heavy , but although that may be true, the issue was the carbon fatigue. Just a bit of this lube on the bike post fixed it. I don't need to go crazy making the seat super tight (which didn't work anyways), just normal pressure and some of this product was all i needed.

I've got a 2022 Trek Domane with a carbon seatpost. I tried tape, I tried basic grit/grease stuff, nothing worked. The basic grit/grease stuff would hold for a little bit, but never felt solid and indeed would, after a few short rides, allow the seat post to slip again. I had a century coming up with a lot of big climbs and needed the seat to stay put. The description of the fiber grip looked good, and so I tried it and love it. I think it's fantastic. During the century, the seatpost never gave any sign of slipping at all. I will add that, in addition to the fiber grip, I added some blue thread locker to the bolt to help prevent it from vibrating back out. Very happy with the solution. Fiber Grip for the win for sure!