EASY TO INSTALL AND MAINTENANCE FREE – This ShockStop bike accessory fits all modern bikes with standard 1 1/8in (28.6mm) steerer tubes and 31.8mm handlebars (shims available for 25.4mm and 26.0mm bars). It comes in a flippable +/-6 degree angle in 80, 90, 110, 110, and 120mm lengths and in a +30 degree angle in a 100mm length. Fine-tune the suspension feel to match your unique riding style with the 5 included swappable elastomers. REDUCE FATIGUE AND INCREASE EFFICIENCY – Stop wasting energy-absorbing impacts and vibrations with your body. This suspension stem for bicycles dampens bumps and vibrations which reduce fatigue and enable you to go further and faster on the bike you already own. UP TO 70% BUMP AND VIBRATION DAMPENING – Say goodbye to sore hands, wrists, back, and neck and say hello to increased control, more confidence, and a super smooth ride. With 20mm of damped suspension travel, the ShockStop shock absorber bike stem reduces the effects of impacts and vibrations by up to 70%. Just the right amount of vertical compliance without sacrificing any stability or compromising steering. 15% LESS WEIGHT WITH A PREMIUM FINISH – The new PRO version of our shock-absorbing bike stem for road, gravel, hybrid, and e-bikes is 15% lighter! It features lightweight titanium hardware, a high-quality polished finish, and additional precision CNC machining to reduce weight. RIDE FURTHER, FASTER, AND MORE COMFORTABLY – The ShockStop PRO bike handlebar suspension stem is the perfect upgrade to your current bike. A perfect road bike stem, gravel bike stem, hybrid bike stem, or e-bike stem. Float over obstacles and dampen vibrations so you can ride longer, go faster, and stay in control even on the roughest terrain.Date First Available: January 15, 2021. Best Sellers Rank: #137,008 in Sports & Outdoors. Customer Reviews: 4.7 out of 5 stars 77 ratings 4.7 out of 5 stars. : B08T1YBGXW. Size: ?6 degree x 120mm. Part Number: ?RS-40-14-MB. Manufacturer: ?REDSHIFT. Number of Items: ?1. Brand Name: ?REDSHIFT. Package Weight: ?0.34 Kilograms. Item Package Dimensions L x W x H: ?7.76 x 2.8 x 2.17 inches.