Amazon.com : RXL SL Bike Stems, MTB Stem, Mountain Bike Stem, Lightweight Road Bike Stem 31.8 130mm 17 Degree, Shock-Absorbing Bike Handlebar Stem for Fixie Bike, Gravel Bike, Hybrid Bike, and E-Bikes :
Singletracks Readers Choose Their Favorite Mountain Bike Stems - Singletracks Mountain Bike News
ENVE Stem MTB M6 Carbon 31,8 mm, 325,00 €
Carbon mtb dh mountain bike stem 31.8mm 17 degree road bike stem handlebar stems | eBay