Product Description High suspension comfort: the suspension seatpost SP-S05 Pro by XLC The XLC Pro suspension seatpost comes with a generous 40 mm of travel. The combination of steel spring and PU damping guarantees high suspension comfort. The post was forged from 6061 aluminum. The two-bolt clamp provides additional security. If the specified stiffness does not suit you, you can also order XLC replacement springs: Replacement Spring for SP-S05. Technical Information: Application: City & Touring Material: Aluminum 6061-T6 Length: 350 mm Increased Height: 83 mm Travel: 50 mm (31.6 mm), 40 mm (27.2 mm) Diameter: 27.2 / 31.6 mm Setback: 15 mm Clamp: 2-bolt Rider Weight (max.): 120 kg Models: 27.2 mm / 350 mm / SB 15 mm: Suspension Travel: 40 mm Stiffness: medium Optimal Rider Weight: 65 - 85 kg Manufacturer Number: 2502071100 31.6 mm / 350 mm / SB 15 mm: Suspension Travel: 50 mm Stiffness: hard Optimal Rider Weight: 85 - 100 kg Manufacturer Number: 2502071200 Contents: 1 x Manufacturer: XLC is a trademark of Accell Nederland B.V. Industrieweg 4 8444 AR Heerenveen Netherlands info@xlc-parts.com