365mm: Fits seatposts between 300mm and 400mm; 580mm: Works with seatposts between 500mm and 620mm, particularly for certain folding bikes like Brompton and Dahon.
Specification - Length 365/580mm, Travel 50mm, offset 25mm, weight approximately 800g, made from 6061-T6 aluminum alloy, manufactured in Taiwan
Before Buying - Please check the diameter of your old seatpost to ensure you receive the correct new post.Some of the seatpost diameters listed are converted using a shim. For example, for a 30.4mm seatpost, you will receive a 27.2mm post and a shim (27.2 to 30.4mm), saving you the trouble of purchasing it separately. The shims are super-lightweight and essentially invisible once installed
Extreme Capacity - This suspension seatpost supports riders weighing up to 198 kilograms (436 pounds). In contrast, similar products from other brands typically support only 140 kilograms (308 pounds)
4-Link Suspension - The patented parallelogram structure, unlike the central compression used in most entry-level suspension posts, achieves pressure balance for a softer and more comfortable riding experience