G4 Thudbuster Seatpost Long Travel

The Thudbuster G4 is superior to its predecessor in every way. Building on Thudbuster’s proven parallel linkage technology we have completely re-designed the seatpost for increased durability and additional suspension travel, as well as ease of use through tool-free elastomer change and a single-bolt seat clamp design.
* Maximum suspension: 90mm of travel (3.54in) for maximum shock absorption while cycling.
* Reduce riding pain & increase comfort: Absorb bumps, dips, and drops. Soften your ride and make biking more comfortable and enjoyable so you can ride longer.
* High quality & durable: Completely redesigned from the previous model for increased durability and additional suspension travel.
* No shop tools needed: Tool-free elastomer change and a single-bolt seat clamp design for easy seatpost adjustments.
For over 20 years, Thudbuster has been the bicycle industry standard in suspension seatposts by providing unequaled comfort and reliability to riders around the world.

Setback: 5mm (unweighted)
Post: Forged aluminum
Seat Clamp: Single bolt fastening and angle adjustment design
Pivots: Threaded, serviceable, hard anodized aluminum axles flanged PTFE bushings
Elastomers: Medium firm elastomer pre-installed from the factory. Extra Soft, Soft, Firm, and Extra Firm elastomers sold separately
Travel: 90mm / 3.54in
Length: 27.2 – 390mm. 30.9 + 31.6 – 420mm
Weight: 750 grams (31.6)
Max Rider Weight: 250lbs / 113kg
Extension: Minimum – 146mm
Maximum – 290mm for 27.2, 320mm for 30.9 +31.6
Diameter (Direct Fit): 27.2, 30.9, 31.6
(additional diameters available with seatpost adapter)