Garmin Boost Stem

This computer mount adds a 1cm rise above short stems with steep angles, giving larger Garmin head units the clearance they need to sit cleanly above the bar. It replaces a 5mm headset spacer on 1-1/8-inch steerers, works with Garmin, Wahoo, and Hammerhead computers, and weighs just 21 grams with a lifetime guarantee against defects.