Redshift Sports
Shockstop 30.9mm Suspension Seatpost

The patent-pending ShockStop Suspension Seatpost provides 35mm of tunable, ultra-responsive suspension travel for the ultimate bump-eating comfort. Ride further, faster, and more comfortably on the bike you already own, while the ShockStop Suspension Seatpost lets you float over rough terrain. 

• Ride farther & more often - the ShockStop Seatpost reduces fatigue from bumps and vibrations with superior shock absorption. 
• Ride faster & reduce fatigue - energy that is normally wasted suspending your body is converted into forward motion. 
• Better performance & complete control - customize your suspension seatpost feel to float over obstacles and maintain traction and control. 

Features:

• 35mm of active suspension travel
• Optimized linkage geometry provides ultra-responsive suspension feel
• Infinitely adjustable stiffness via pre-load adjustment and swappable springs
• Adjusting stiffness / pre-load does not reduce travel
• Swappable springs included to accommodate heavier riders and/or ride preference
• Check technical specifications for sizes & compatibility

What's in the Box:
1 x ShockStop Suspension Seatpost
2 x springs (1 pre-installed, 1 included in box for increased stiffness)
All required hardware

Specification:

Diameter: 30.9mm(shims available for additional non-standard seat tube sizes)
Length: 350 mm (14 in), 400mm (15.7in), 450mm (17.7in)
Suspension Travel: 35 mm (1.4 in)
Rearward Offset: 7 mm (0.27 in)
Rearward Offset (@ 25% travel): 12 mm (0.47 in)
Spring Pre-load: User Adjustable
Weight: 350mm – 547 - 634g - w/main spring, 400mm – 636 - 683g - w/main spring, 450mm –707 - 732g - w/main spring,
Rider Weight Limit: 120kg (264lb) 
Material: 6061 T6 Aluminum Alloy
Saddle Rail Compatibility: 7mm round & 7x9mm oval
Di2 Battery Compatibility: Only compatible with the 27.2mm diameter x 350mm length (requires mount kit sold separately)