Box One Delta Stem (1 1/8" 31.8mm)

• Oversized
• 45 Degree Load Clamp Design w/ Side Skirts for Rigidity
• Two-Tone Anodizing
• Massive Bar Bore
• Massive Clamping Bolts
• Superior Strength

Specs:

• Material: 6061-T6 Aluminum
• Process: Forged & CNC
• Hardware: Chromoly Clamping Bolts
• Finish: Anodized w/Laser-Etched Graphics
• Length: 48mm, 53mm
• Clamp Diameter: 31.8mm
• Stack Height: 32mm
• Rise: 0˚
• Steerer Tube: 1-⅛”
• Weight: · 48mm: 290g / 10.2oz & 53mm: 299g / 10.5oz

Meets or exceeds EN 16054 Category 2 Standard.

All Box stems are engineered & crafted using our Oversized Technology. As we follow the load paths down the handlebars we have focused our attention on the stem-to-bar interface. Since the Oversized handlebars have an increased wall thickness & tube diameter in this sector we have reciprocated w/ an augmented stem interface w/ greater surface area. We’ve done this by moving material from low stress areas. This has greatly minimized twist & contributed to responsiveness. As the stem is mated w/ the handlebars we have contributed to increased pedaling stiffness by providing a backstop to the “lifting” phenomenon. There is no point pushing hard on your pedals if you can’t pull up on your handlebars & deliver that power. Power can easily be lost to handlebar-to-stem deflection & the consequences can be poor power delivery & steering control. When combined w/ Box’s other Oversized components, you’ll experience heightened responsiveness & reduced latency.

Key differences: This particular model stem not only shifts material from low stress zones to the Oversized interface, but also provides rigidity through the side skirt design. We used a reverse development process for the delta stem. The structure was created from the outside-in vs. the traditional inside-out method. These stems are engineered for the larger-sized racers.