Cane Creek Seatpost Adapter Shim

Product fits a Lectric One frame for the Seat Post tube reducing tube size from 31.8 mm to 27.2 mm using a SR Suntour NCX suspension seat post setup. Solved my issue perfectly. Nice Black shim product.

Well made and fit perfectly!

perfect sizing

OK, it's a shim. It fits and does what it needs to do. I wouldn't ordinarily take the time to review so basic a product, but the superior finish deserves a mention.I own Cane Creek shims in two sizes: 27.2 to 29.8 and 27.2 to 30.8. The reason is to use my Cane Creek 3G Thudbuster Long Travel Seatpost, 27.2 in my two bicycles. Too bad that 27.2 isn't a universal size.The machining on Cane Creek's shims is flawless. The black anodizing not only matches the Thudbuster, it has the same micro etching to hold grease. The silk screening won't last, of course, but it's also flawless.The thicker Cane Creek shims have an additional feature that goes beyond cosmetics. The shims have a half thickness groove opposite the compression slot. The groove is on the interior wall so it won't show up in the photos. It is the same width as the compression slot and runs the full length of the shim.My 30.8 OD shim has this groove, whereas my 29.8 OD does not. It makes a difference. I can squeeze the 30.8 shim closed with one hand, but not the thinner walled 29.8. The groove insures that you don't need to be Hercules to tighten your seat post clamp.The instructions call for applying grease to all four matching surfaces; i.e., the ID of the seat tube, the ID and OD of the shim, and the OD of the seat post. Less is better than more. The grease is only to prevent the surfaces from corroding together. If you apply too much, as I did, then the excess will have nowhere to go regardless of how much you tighten the seat clamp. The seat post will slowly squish down under load like a hydraulic piston.Made in the USA doesn't guarantee quality anymore, but it's nice to see when it does.

Work wells

Precise fit and finish.

For all the seat post sizes out there, shims can become very essential for riders that manage a number of cycles. Going to an e-bike, I used this to move a favorite seatpost / saddle to an e-bike of a larger frame size. This fit precisely, is well machined, light enough, and allowed me to use a much more comfortable seatpost.and saddle. Given that most posts synch at the top end of the seat tube, this provides good grip and has a well engineered lip to prevent it from slipping inside a normal undamaged tube.

The media could not be loaded. This shim allows the 27.2 mm Zoom suspension seat post to fit in the 31.8 mm seat post opening on my Lectric XPeak. Quick and easy install. It's light weight, fits perfectly in the bike and holds the suspension post securely.