Kit specifically designed to work with Shimano direct fit brake mounts for the Ultimate USE Helix lever.
ULTIMATE USE SX 27.2mm Seatpost ShimThis ULTIMATE USE shim system allows you to fit a 27.2mm seat post into virtually any frame size. The shims are made to 100mm length and are longer than other shims on the market, giving your seat post much better support inside the frame.High-Quality ConstructionThe machined aluminium shim is machined to very high tolerances from 6082 T6 aluminium and then black anodised to protect from corrosion. The machined plastic shim is used for the larger sized shims and they are machined to very high tolerances from "filled" engineering thermoplastic UPVC. This keeps the weight down, as the shims get thicker.Thinnest Sizes in AluminiumShims are available in aluminium and thermo plastic, despite the latter being a lighter solution, its material characteristics limit the thickness of the ID - OD measurements. Aluminium is used to achieve the thinnest shims as it is a more robust material.Features:Most of the sizes are made from a resin material for performance reasons (Thermoplastic (UPVC), Some (smaller sizes), will be aluminiumAll these shims have internal diameter 27.2mmBuy ULTIMATE USE Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Available in a range of sizes to help you fit your favourite seatpost into an alternative frame.
ULTIMATE USE 30.9 Internal ShimThis ULTIMATE USE 30.9 Internal Shim allows you to fit a 30.9mm seat post into virtually any frame size. The shims are made to 100mm length and are longer than other shims on the market, giving your seat post much better support inside the frame.High-Quality ConstructionThese machined plastic shims are machined to very high tolerances from "filled" engineering thermoplastic UPVC. This keeps the weight down, as the shims get thicker.Features: Material: Resin material for performance reasons (Thermoplastic (UPVC) All these shims have internal diameter 30.9mmBuy ULTIMATE USE Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shims are available in Aluminum and Thermo Plastic, despite the latter being a lighter solution its material characteristics limit the thickness of the ID - OD measurements. Aluminum is used to achieve the thinnest shims as it is a more robust material. Rolled Aluminum shim - the very thinnest shims are rolled from sheet metal. 25.4mm shims need to be so thin as they are etched down in acid to the correct tolerance and are too thin to anodise (show as silver). Machined Aluminum shim - machined to very high tolerances from 6082 T6 Aluminum and then black anodised to protect from corrosion. Machined Plastic shim - larger size shims are machined to very high tolerances from "filled" engineering thermoplastic UPVC. This keeps the weight down, as the shims get thicker.