Specialized S-Works Tarmac SL8 Carbon Seatpost

The Specialized S-Works Tarmac SL8 seatpost is the original replacement part designed specifically for the Specialized Tarmac SL8. Made from FACT carbon fiber, it combines lightness, stiffness, and aerodynamics to ensure maximum performance and perfect integration with the frame.

Thanks to its dedicated aerodynamic profile, this seatpost maintains the efficiency of the Tarmac SL8's design, helping to reduce air resistance while offering comfort and precise adjustability.

It is available in two setback configurations, allowing the saddle position to be adapted to each cyclist's needs.

Two setback options

The seatpost is available in the following versions:

• 0 mm setback, ideal for a more advanced and aggressive position.
• 20 mm setback, designed for those who desire a more rearward position and greater bike fitting customization.

The 20 mm offset version uses a dual-bolt clamp, which allows for extremely precise adjustment of the saddle's inclination. The 46 mm rail housing allows for an effective offset adjustable from 0 to 20 mm.

The 0 mm offset version, on the other hand, features an alloy head with longitudinal saddle adjustment and a single-bolt clamp for quick and easy installation.

Main features

• Original Specialized seatpost
• Designed exclusively for Specialized Tarmac SL8
• Made from FACT carbon fiber
• Aerodynamic profile perfectly integrated with the frame
• Available with 0 mm or 20 mm setback
• 20 mm version with dual-bolt clamp for saddle micro-adjustment
• 0 mm version with alloy head and single-bolt clamp
• High stiffness, lightness, and precise adjustability

Technical specifications

• Brand: Specialized
• Model: S-Works Tarmac SL8
• Type: Seatpost
• Material: FACT Carbon Fiber
• Compatibility: Specialized Tarmac SL8
• Profile: Aerodynamic
• Available Setbacks: 0 mm / 20 mm

20 mm Version

• Offset: 20 mm
• Clamping System: 2-bolt clamp
• Micro-adjustment: Yes
• Saddle Rail Compatibility: 46 mm housing
• Effective Adjustable Offset: From 0 mm to 20 mm

0 mm Version

• Offset: 0 mm
• Head: Alloy
• Adjustment: Forward/Backward
• Clamping System: Single bolt