Zoom SP442 Suspension Seatpost – 27.2mm / 30.9mm / 31.6mm Adjustable Shock-Absorbing Bike Seat Post, 45mm Travel Four-Bar Linkage for MTB, Gravel,

Zoom SP442 Suspension Seatpost – 27.2mm / 30.9mm / 31.6mm Adjustable Shock-Absorbing Bike Seat Post, 45mm Travel Four-Bar Linkage for MTB, Gravel,

【Universal Fit – 3 Sizes Available】Fits most bikes with 27.2mm, 30.9mm, or 31.6mm seat tubes, including MTB, gravel, hybrid, commuter, road, folding, and e-bikes. Installs easily without frame modifications. 【Advanced Four-Bar Linkage Suspension】Parallelgram mechanism maintains a consistent saddle angle throughout its full 45mm travel, ensuring stability and comfort on uneven terrain. 【Up to 60% Shock & Vibration Reduction】Effectively absorbs road buzz, bumps, and trail impacts, reducing rider fatigue and protecting your lower back on long rides. 【Weight-Sensitive & Adjustable Preload】Preload tuning lets you customize suspension stiffness based on rider weight (110–242 lbs) and riding style for optimal performance. 【Durable & Low-Maintenance Design】Made from high-strength materials with precision CNC machining. Requires minimal maintenance—just clean after rides and lubricate monthly for best performance.

Upgrade your ride with the SP442 Four-Bar Linkage Suspension Seatpost—designed to bring premium comfort and control to every ride.

With its parallelgram suspension design and 45mm of active travel, the SP442 keeps your saddle angle consistent while absorbing up to 60% of shocks and vibrations from rough roads or trails.

Perfect for MTB, gravel, road, hybrid, folding, and e-bikes, it comes in three sizes (27.2 / 30.9 / 31.6mm) to fit most frames.

The weight-sensitive preload adjustment allows you to fine-tune stiffness to match your riding style and weight (110–242 lbs), ensuring maximum comfort without sacrificing pedaling efficiency.

Crafted from high-strength, precision CNC-machined materials, the SP442 is built to last, with minimal maintenance—just clean after rides and lubricate monthly.

Whether you’re commuting, exploring gravel paths, or taking on long-distance rides, the SP442 transforms your bike into a smoother, more enjoyable ride.