An excellent choice for mountain, cross, and road cyclists who prefer to have the computer above the stem. The mount replaces a standard 5mm spacer, and is locked securely in place by the top cap compression system. - Supported Computers - Wahoo ELEMNT, Wahoo Bolt, Wahoo MINI - Compatible - 1-1/8? Steerer tube Diameter, - Thickness: 5mm, Length 50mm (Center-to-Center) - Recommended for 0 Degree to Negative Degree Stem Angles - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface - Weight: 25g - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded