The Thudbuster Seatpost from Cane Creek is the most effective and versatile suspension Seatpost available. Our parallel-link technology provides a clear advantage in traction, comfort, and control without sacrificing performance. Available in both Long Travel and Short Travel configurations, with a range of elastomer spring rates, the Thudbuster is tunable to match your weight and riding preference.

The Science Behind Thudbusterworking in The Direct Path of The Natural Travel of The Rear Wheel.
The Thudbuster technology stays in the direct path of the natural travel of the rear wheel. As a bump lifts the back of a bicycle, the rear wheel pushes up and forward into the rider. The Thudbuster works by compressing along the exact opposite path — down and rearward — absorbing force at the same rate: The net movement of the saddle is zero. Fully active elastomers provide approximately 3 inches (76mm, Long Travel) or 1.3 inches (33mm, Short Travel) of customizable suspension.

Features

• Technical Description 353 mm (403 mm for the 27.2 xl version) (560 mm for the 33.9 version)
• Post Forged aluminum
• Linkage Forged and CNC machined aluminum
• Pivots Stainless steel axles with PTFE-impregnated sintered-bronze bushings
• Elastomers Twin urethane stack with various spring rates
• Travel 1.3 inches (33 mm)
• Length 353 mm (403 mm for the 27.2 xl version) (610 mm for the 33.9 version)
• Weight 454 – 474 g (depending on post diameter) (489 g for the 27.2 xl version)
• Max Rider Weight 250 lbs
• Extension (min) Minimum – 98 mm
• Extension (max) Maximum – 251 mm (301 mm for the 27.2 xl version)
• Diameter (direct fit) 25.4, 26.8, 27.0, 27.2, 27.2xl, 30.9, 31.6, 33.9, (additional diameters available with shim).

SKU# CCRK-BL4200K