Nukeproof horizon stemtested on tough enduro and downhill trails, nukeproof's horizon stem features a sturdy but sleek design, ideal for thrill seeking racing. Taking feedback from nukeproof's expert riders and staff, this trusted mountain bike stem is lightweight without sacrificing any strength and allows you to adjust the bar height to ensure you're sitting in the optimal riding position.precision cnc machined for strength and to reduce weightthe stem can be mounted either way, providing 5mm of bar height adjustability allowing you to tailor your cockpit set up with 5mm rise or fall. It has been precision cnc machined to maintain high strength and to remove unnecessary material to save weight and give a sleek modern, stylish look.offset design for durability and easier fittingthe horizon stem steerer clamp features an offset design, which provides maximum thread contact for the steerer bolts. All sharp edges have been removed during the machining process to ensure a smooth feel while eliminating any risk of injury should your body come in contact with the stem. The face plate has also been designed specifically with no gap at the top to give it a clean look and to make fitting assembly easier.the fitting instructions for this stem can be found here for your convenience and are also included within the stem packaging.featuresprecision cnc machinedopposing offset steerer clamp to give maximum thread contactknee friendly steerer clamp designfour bolt front mount face platerise 5degstack height 35mminvertible yesstem cap included noweight 128g 31.8 x 35mm, 171g 35 x 50mmbuy nukeproof components from chain reaction cycles, the world's largest online bike store.