The ShockStop PRO Race Suspension Seatpost delivers the ultimate ‘race-tuned’ suspension performance and up to 130 grams weight reduction compared to the original ShockStop Endurance Seatpost. This version combines coil spring and elastomer suspension technology to provide the best of both worlds; highly responsive to bumps and vibrations and subtle enough to disappear into the background while you smoothly deliver power. User adjustable stiffness lets you dial in the right feel to match your riding style. 

More comfort at the saddle means you’ll be able to ride longer, go faster, and maintain control even on the roughest terrain. The minimal, lightweight design of the ShockStop PRO Race Suspension Seatpost blends seamlessly with the aesthetic of modern gravel and road bikes. 

Benefits:

• Race-tuned - the combination of coil springs and elastomers provides a progressive spring rate that lets the suspension work effortlessly to absorb the bumps and buzz of gravel or road riding, while still providing a firm foundation to maximize power delivered to the pedals. The PRO Race seatpost disappears into the background, letting you stay in control and focused, while leaving you less fatigued after every ride.
  
• PRO Level - up to 25% weight reduction (130 grams!) from original ShockStop Endurance Seatpost and ultra-sleek styling
  
• Go farther - reducing fatigue from bumps and vibrations
  
• Ride faster - energy that is normally wasted suspending your body is converted into forward motion
  
• Improve control - float over obstacles
  
• For the ultimate suspension system, pair with the ShockStop PRO Stem or ShockStop Stem  

Details:

• The ShockStop PRO Race Seatpost is available in two length options: 280mm and 350mm
  
• 20mm of active suspension travel
  
• Race-tuned progressive spring rate elastomers & coil springs
  
• Optimized linkage geometry provides ultra-responsive suspension feel
  
• Di2 battery compatible (using standard di2 adapter)
  
• Check technical specifications for compatibility
  

What's in the Box:

• 1 x ShockStop PRO Race Suspension Seatpost 
  
• Pre-installed inside seatpost: Outer Coil Spring, Inner Coil Spring, Green (Soft) Elastomer with End Caps
• Red (Medium) Elastomer with End Caps
• All required hardware

Specifications:

Diameter: 27.2 mm 
Length: 280 mm (11 in), 350 mm (14 in)
Suspension Travel: 20 mm (0.8 in)
Rearward Offset: 7 mm (0.27 in)
Weight:    
280 mm – 380 g (with 2 elastomers)
280 mm - 410 g (with 1 elastomers and double spring)
350 mm – 415 g (with 2 elastomers)
350 mm - 445 g (with 1 elastomer and double spring)
Rider Weight Limit: 110 kg (242 lb)
Material: 6061 T6 Aluminum Alloy
Saddle Rail Compatibility: 7mm round & 7x9mm oval
Di2 Battery Compatibility: Yes - standard battery holders will fit
Intended Use: ASTM F2043 Class 2 - For on and off-road riding and drops less than 15cm (6")