Bigger is better as far as the Box Delta Stem is concerned...

Bigger is stiffer, stiffer is stronger, stronger is faster. With a set of 31.8 bars the Box Delta stem with all its oversized faces offers an aggressive look and a stiff/fast feel to your bike. Box say every rider they work with who has used the Delta/Maximus set-up has noticed a major improvement in stiffness and has been impressed with the more positive pull they get on the bars out of the gate and while cornering and jumping.

Specifically designed for the Box Maximus Chromoly bars with a 31.8mm bar bore. Box say this adds stiffness and rigidity to the front of your bike without adding weight. The additional stiffness significantly improves bike handling while putting more upper body power into your pedal strokes.

“Bigger is stiffer, stiffer is stronger, stronger is faster.”


  • STYLE: Top Load
  • FIT: Specific for oversized 31.8mm bars (Box Maximus Bars). 1-1/8″ threadless forks
  • REACH: 48mm and 53mm options
  • MATERIAL: CNC machined 6061 T-6 aluminum
  • CLAMPING: 2 clamping bolt and 4 stem cap bolts, CrMo
  • FEATURES: Light weight stem with plenty of weight reducing cutouts


  • 48mm: 10.15oz/288g
  • 53mm: 10.4oz/295g
  • 60mm: 11oz/313g


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