The Box One Oversized Top Load Stem uses 6061-T6 Aluminum that is cold forged to give it an overall greater stiffness. Box’s oversized technology focuses on the mating of the bar to the stem. By removing material from low stress areas that are not as critical, Box was able to make a greater mating surface area between the bar and stem that actually minimizes twist and has contributed to responsiveness. As the stem is mated with the handlebars Box has contributed to increased pedaling stiffness by providing a backstop to the lifting phenomenon. There is no point pushing hard on your pedals if you cant pull up on your handlebars and deliver that power. Power can easily be lost to handlebar-to-stem deflection and the consequences can be poor power delivery and steering control. When combined with Boxs other Oversized components, youll experience heightened responsiveness and reduced latency.

• Oversized 31.8mm clamping area
• Oversized Stiff Design
• Oversized Bar Bore
• Oversized Cro-Mo Clamping Bolts
• Cold Forged for Superior Strength
• Stack Height 28mm
• Rise +/-5
• Steerer Tube 1-1/8″
• Weight (+/-) 263 grams / 9.3 ounces 267 grams / 9.4 ounces 280 grams / 9.9 ounces

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