Problem Solvers 0.7mm Shim, 30.9mm Seatpost to 31.6mm brake shoe Its proprietary design has an

Its proprietary design has an ovality of 10% and a timing of 112 degrees after top dead center which provide the beneifits of an oval ring such as greater rear wheel traction without the traditional downsides of oval rings

the X3 rear derailleur provides great shifting performance

the Echo is able to slide against the head in the case of a crash

soft platform to dissipate force onto a greater surface area

Stripe Length: 210cm Stripe Width: 3cm Stripe Thickness: 3mm center – 0

Problem Solvers 0.7mm Shim, 30.9mm Seatpost to 31.6mm brake shoe Its proprietary design has anSwitching frames doesnt mean you have to switch posts! Use your old posts without worry with the Problem Solvers Seatpost Shims. Length is 97mm with a 3mm lip totaling 100mm Due to the ultra thin spec of this shim and varied manufacturing tolerances of frames and seatposts, we can't guarantee compatibility with all brands on the market Be gentle and use grease