Shimano's 10-speed chains use a single-use connecting pin rather than a reusable quick link, and every time you break the chain to remove it for cleaning or replacement, you burn one pin. The Shimano 10-Speed Chain Pin 3-Pack is the replacement stock for that workflow — three connector pins sized for current-generation 10-speed HG chains, packaged for the tool box or the ride-day repair kit. Keep a pack on the bench and you stop rationing pins when it's time to shorten a new chain to length.

These are the three-groove, extra-long design Shimano moved to with the new-generation 10-speed chains. The pin arrives longer than the finished link needs, with a narrower starter section that threads into the outer plate cleanly and guides the full-diameter body through without cocking sideways in the chain tool. Once the pin is fully seated, a pair of pliers snaps the excess off at the pre-scored perforation, leaving a flush pin that sits at the correct final length. It's a much cleaner install than fighting a standard pin into a modern narrow chain.

Compatibility is where riders get tripped up, so worth being specific. These fit new-generation 10-speed HG chains — road chains including Dura-Ace 7901/7900/7801, Ultegra 6701/6700/6600, and 105 5701/5600, plus mountain chains including XTR M980 and HG94/HG74. They do not fit the original first-generation 10-speed CN-7800 chain, which used a single-groove pin that Shimano no longer produces. If you're running a 7800-era chain, the fix is a new chain rather than a pin. They're also not a substitute for a Shimano quick link on 11- or 12-speed chains — those systems use different connector hardware entirely.... Read More