BOLT-ON COMFORT! The Thudbuster G4 Long Travel seatpost has been setting the gold - standard in the bicycle industry for over 20 years, offering unparalleled comfort and reliability to cyclists worldwide. Now, we're thrilled to introduce the all - new Thudbuster G4 LT. This latest version outshines its predecessor in every aspect. Building on the proven parallel linkage technology, we've redesigned the seatpost for greater durability, more suspension travel, and easier use with a tool - free elastomer change and a single - bolt seat clamp design. We're confident that the new Thudbuster is the most advanced suspension seatpost ever created. Specs: - SETBACK: 5mm (unweighted) - POST: Forged aluminum - SEAT CLAMP: Single bolt fastening and angle adjustment design - PIVOTS: Threaded, serviceable, hard anodized aluminum axles with flanged PTFE bushings - ELASTOMER: A medium - firm elastomer is pre - installed from the factory. Extra Soft, Soft, Firm, and Extra Firm elastomers are 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 shim) Note that the Thudbuster LT suspension mechanism requires at least 146mm (5.74 inches) of clearance between the bicycle frame and the seat rail clamps.

Using the Thudbuster G4 LT seatpost is a breeze. First, make sure your bike frame has at least 146mm of clearance between the frame and the seat rail clamps. Then, install the seatpost into your bike frame according to the diameter that fits your bike (you can use a shim for additional diameters). Adjust the seat angle using the single - bolt seat clamp design to your comfort. The pre - installed medium - firm elastomer should work well for most riders, but you can change it to a different firmness (Extra Soft, Soft, Firm, or Extra Firm) without tools as per your weight and riding preference. When it comes to maintenance, regularly check the pivots. They are threaded and serviceable, so you can clean them and ensure the hard anodized aluminum axles and flanged PTFE bushings are in good condition. Keep the seatpost clean from dirt and debris, and if you notice any unusual noises or reduced performance, it might be time to check the elastomer or the overall mechanism. Remember, the maximum rider weight for this seatpost is 250lbs or 113kg. Exceeding this weight could affect the performance and durability of the seatpost.