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Park Tool RC-1 Press Fit Retaining Compound is a high-performance adhesive designed to fill gaps and securely retain non-threaded bicycle parts such as press-fit bottom bracket cups and sealed bearings. When paired with the AP-1 Adhesive Primer, it accelerates curing and ensures easy future removal, making it a must-have for professional-grade bike assembly and maintenance. Trusted since 1963, RC-1 delivers clean, dry application and reliable performance for mechanics and cycling enthusiasts alike.
| Customer Reviews | 4.7 out of 5 stars 188 Reviews |
H**S
Park tool rc-1 press fit retaining compound
Love this stuff great value for the cost
S**E
Best..
Quality product. Must have for bike assembly.
J**N
An excellent compound for press fitting on certain parts of your bike
This is excellent for coding the two surfaces that need to be press fit together. In my case, it was a vintage American bottom bracket on a 1983 profile champ pro frame and I also used it on the headset when I pressed in an OG HATTA headset
M**A
Always Use Primer First!!!
Used product for bonding of bike press fit Bottom Bracket.
G**H
Works great!
Used this to install a pf92 bottom bracket. Applied primer to the carbon shell and then the retaining compound. Creak free so far.
E**Y
Effective
Quick, easy, and effective. FYI, I used it when installing BB92 press fit on a steel frame fat bike.
E**X
Bike build essential
Great stuff
M**D
Adhesive As Heck
If your goal is to bond your bottom bracket in so tightly you can't remove it, this seems to do the trick. I applied the Park Tool Primer liberally and made sure to put it on a larger area than the bottom bracket could contact. In theory if you use Park Retaining compound this will prevent adhesion, but in my aluminum sleeve it did not. Bottom brackets which could be removed with a rocket tool will no longer come out that way anymore. You'll have to try cutting the bottom bracket with a hack saw or some such and then chisel, grind, or drill it out in sections, likely damaging the bottom bracket sleeve in the process. The good news is that there is no way your bottom bracket will make creaking noises at least for awhile. Hope it breaks free before the new bearings are shot.
Trustpilot
4 days ago
2 days ago