Available in a range of sizes to help you fit your favourite seatpost into an alternative frame.
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.
Click here to see what Staff Rider steve thought of the Duro Carbon Seat Post.
The updated Ultimate Alien seat post is specifically designed for the ultimate road experience in Flat Matt Aluminium specially designed to have the perfect tapering to create strength, stiffness and flexibility in the right places within the post to give you the best ride.
The suspension of the Vybe reduces the effect of terrain on the body allowing energy to be concentrated on the pedals. Enabling consistent seated pedalling for increased power and comfort. You’ll finish your ride faster and fresher and ready to ride again. The Vybe features the DURO clamp, the highly acclaimed, quick fitting, simple to adjust system designed to ensure the perfect saddle position (full range of saddle tilt available). Mountain Bike Suspension Seatpost All ULTIMATE USE uspension seatposts are fully serviceable, adjustable for rider weight and give many years of loyal service with comfort, recovery and performance benefits. To achieve the optimum ride choose your spring option from soft, medium or hard according to your weight. There is also a 'Pre-Load Adjustment' screw at the bottom of the post allowing you to fine-tune the post to give you the ultimate ride.
With the unique lay-up technology and latest carbon fibre polymer and composites combined with newest computer design techniques the Ultimate Evo is our lightest ever seat post.
The Ultimate USE Alien Range is one of the lightest seatpost ranges on the market, and the Alien Carbon is the lightest in the range. Intelligent design and high grade materials ensure that the Alien Carbon is tough, durable yet still lightweight. Ultimate USE s new Alien Cyclops Clamping System uses a larger 3mm hex key single bolt central to the clamp design to make saddle adjustment faster and easier. Used by world-class athletes and amateurs alike, the alien was created for the fastest and toughest riders on the planet. Alien Cyclops clamping systemMaterial: CarbonLength: 300mm / 400mmDiameter: 27.2mm / 30.9mm / 31.6mmSetback: 10mmFinish: 3K Matt
The Ultimate USE Evo Carbon Seatpost features unique lay-up technology and the very latest carbon fibre polymer and composites combined with new computer design techniques to create Ultimate Use s lightest seatpost ever. The Ultimate USE Evo Carbon Seatpost is a great low weight option for any road or XC racer.Material: CarbonLength: 300mm / 400mmDiameter: 27.2mm / 30.9mm / 31.6mmSetback: InlineFinish: 3K Matt / UD MattWeight: 108g 182g
The Ultimate USE Evo Carbon Seatpost features unique lay-up technology and the very latest carbon fibre polymer and composites combined with new computer design techniques to create Ultimate Use s lightest seatpost ever. The Ultimate USE Evo Carbon Seatpost is a great low weight option for any road or XC racer.Material: CarbonLength: 300mm / 400mmDiameter: 27.2mm / 30.9mm / 31.6mmSetback: InlineFinish: 3K Matt / UD MattWeight: 108g 182g
The Ultimate USE Evo Carbon Seatpost features unique lay-up technology and the very latest carbon fibre polymer and composites combined with new computer design techniques to create Ultimate Use s lightest seatpost ever. The Ultimate USE Evo Carbon Seatpost is a great low weight option for any road or XC racer.Material: CarbonLength: 300mm / 400mmDiameter: 27.2mm / 30.9mm / 31.6mmSetback: InlineFinish: 3K Matt / UD MattWeight: 108g 182g
The Ultimate USE Evo Carbon Seatpost features unique lay-up technology and the very latest carbon fibre polymer and composites combined with new computer design techniques to create Ultimate Use s lightest seatpost ever. The Ultimate USE Evo Carbon Seatpost is a great low weight option for any road or XC racer.Material: CarbonLength: 300mm / 400mmDiameter: 27.2mm / 30.9mm / 31.6mmSetback: InlineFinish: 3K Matt / UD MattWeight: 108g 182g
The Ultimate USE Evo Carbon Seatpost features unique lay-up technology and the very latest carbon fibre polymer and composites combined with new computer design techniques to create Ultimate Use s lightest seatpost ever. The Ultimate USE Evo Carbon Seatpost is a great low weight option for any road or XC racer.Material: CarbonLength: 300mm / 400mmDiameter: 27.2mm / 30.9mm / 31.6mmSetback: InlineFinish: 3K Matt / UD MattWeight: 108g 182g