Forty Seatpost
Forty Seatpost
Forty Seatpost
Get Behind the Bar that started it All
ProTaper has long been recognized as a pioneer in high-performance cockpit components, bringing decades of innovation from motocross into the world of mountain biking. Known for their lightweight yet durable handlebars and stems, ProTaper applies the same engineering philosophy to every product they develop—including the Forty Seatpost. The ProTaper Forty Seatpost is built for riders who demand reliability and precision, whether tackling aggressive descents or grinding out technical climbs. Crafted from high-grade aluminum, the Forty offers an ideal balance of strength, weight, and stiffness, ensuring responsive handling and a rock-solid interface with the saddle. With a two-bolt micro-adjust clamp, fine-tuning your saddle angle is simple and secure—because fit and comfort matter just as much as performance.
The Forty Seatpost
Features
The forty Seat post is available in a 40cm length with 0 offset for both 30.9 and 31.6mm seat tubes.
Forty Seatpost
carbon construction and Ti hardware
Forty Seatpost
suitable for anyone looking for a lightweight rigid seatpost for any occasion or discipline
Forty Seatpost
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Forty Seatpost
Forty Seatpost
  • Material: Carbon
  • Hardware: Titanium
  • Diameter: 30.9mm or 31.6mm
  • Offset: 0mm
  • Length: 400mm
  • Torque Spec: Saddle Rail Clamp Bolts 5Nm Max
  • Torque Spec: Seatpost Collar: Determined by Frame manufacture/Seatpost Collar
  • Weight: 212g