The ShockStop Suspension Stem offers a smoother, more comfortable ride by absorbing road vibrations and bumps. With its adjustable suspension, riders can customize the stiffness of the stem to their preferences. Ride longer and more comfortably with the ShockStop Suspension Stem. Titanium hardware and weight-reducing CNC machining takes the ShockStop PRO Suspension Stem to the next level of performance. Enjoy the same shock-reducing benefits of the standard ShockStop Stem with 15% less weight and a premium finish. Whether you're on a local group ride, or exploring gravel back roads, the ShockStop Stem will make your ride smoother, faster, and more comfortable. Go farther - reduce fatigue form bumps and vibrations Effective suspension travel: Up to 20mm Includes 5 swappable elastomers to fine tune your riding style Stack Height: 40mm 6061 T-6 Aluminum construction Titanium hardware Steer clamp: 1-1/8" (28.6 mm) Handlebar clamp: 31.8mm 229 - 250g