The Box One Top Load 31.8mm Bar Bore Stem features design and engineering elements that make this the perfect stem for larger sized racers looking to upgrade. Box understands that speed and power can be lost if your handlebars and stem are not mated perfectly and with this design they have eliminated that problem. With an oversized, super stiff design, this stem is cold-forged and features oversized chromoly clamping bolts for extra strength and increased responsiveness. Box also removed extra material from low-stress areas to reduce unnecessary weight. FEATURES Oversized Stiff Design Oversized Bar Bore Oversized Cro-Mo Clamping Bolts Top-Load Clamp Design Cold Forged for Superior Strength 48mm 53mm 60mm Clamp (Ø) 31.8mm Material 6061-T6 Aluminum Process Cold-Forged Rise +/-5˚ Stack Height 28mm Steerer Tube 1-1/8" Weight (+/-) 263 grams / 9.3 ounces 267 grams / 9.4 ounces 280 grams / 9.9 ounces
