- Sporty Performance - 35mm of damped suspension travel, providing the perfect choice for riders who want lots of suspension travel in a lightweight package and highly tunable stiffness- Tunability - This new design features a combination of elastomers and coil springs for a more progressive spring rate and controlled travel while still maintaining small bump sensitivity and low weight- Swappable elastomers and springs allow you to change the suspension stiffness, while a preload adjustment lets you dial in the perfect feel- Lightweight - up to 13% weight reduction (up to 74 grams!) than the equivalent set-up in the standard ShockStop 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- Length: 280, 350 mm- 35mm of active suspension travel- Combination of coil springs & swappable elastomers- Optimized linkage geometry provides ultra-responsive suspension feel- 350 mm size is Di2 battery compatible (using standard di2 adapter), 280 mm is NOT Di2 Compatible- What's in the Box: 1x ShockStop PRO Endurance Suspension Seatpost, pre-installed inside seatpost: red (medium) elastomer with end caps, outer coil spring, inner coil spring, green (soft) elastomer with end caps