The Box One Oversized 31.8mm Front Load Stem-1 1/8″ are engineered for larger racers and designed specifically to increase pedaling stiffness. The stem is cold forged to take advantage of the greater strength that results from the process. Box has taken great care in designing all their stems, because while it might seem like the simplest of BMX parts, they know that it provides a vital part of the pedaling stiffness equation and is not to be overlooked.

Features:

• Oversized Stiff Design
• Oversized Bar Bore
• Oversized Cro-Mo Clamping Bolts
• Front-Load Clamp Design
• Cold-Forged for Superior Strength

Compatibility

• Box One XL Fork with 1-1/8″ Steerer Tube
• Box One X2 Fork with 1-1/8″ Steerer Tube
• Box One X5 Fork with 1-1/8″ Steerer Tube
• Box One Cro-mo Triple Taper Handlebar with 31.8″ Bar Bore
• Box One Alloy Triple Taper Handlebar with 31.8″ Bar Bore

Specifications:

• Clamp (): 31.8mm
• Material: 6061-T6 Aluminium
• Process: Cold-Forged
• Rise: +/-5
• Stack Height: 28mm
• Steerer Tube: 1-1/8″
• Weight (48mm)(+/-5%): 280 grams / 9.8 ounces
• Weight (53mm)(+/-5%): 290 grams / 10.2 ounces