Check the listing for details. Box Two Top Load Pro Stem (Blue). Color: Blue, Condition: New. Listed at 54.99 USD. The Box Two Top Load stem is designed specifically with BMX racing in mind. Made using 6061-T6 aluminum that is then CNC machined. This stem has a 22.2mm clamp for BMX Racing and a 1-1/8" steerer tube clamp for maximum compatibility. Make your bike even more reliable and responsive with The Box Two Top Load steml]. Features: • Cold-Forged and CNC Machined from 6061-T6 Aluminum Alloy • Top-Load Clamp Design • 48mm and 53mm and 60mm Reach Available • Fits 1-1/8” Steerer Tubes and Standard 22.2mm Handlebars Size Clamp Material Process Rise Steerer Tube Weight 48mm 22.2mm 6061-T6 Aluminum 3D Cold Forged 5° 1-1/8" 234 grams 53mm 22.2mm 6061-T6 Aluminum 3D Cold Forge 5° 1-1/8" 240 grams 60mm 22.2mm 6061-T6 Aluminum 3D Cold Forged 5° 1-1/8" 260 grams About Us | View Store