Brand: Promax
Product Code: Promax BMX impact oversize stem
Availability: In Stock

Available Options


The new 31.8 Impact stem has a 45-degree top-load design for BMX racing and freestyle.

Tthe stems are cold forged from the highest quality 6061-T6 aluminum then CNC machined to refine the shape and further reduce weight.

Lighter than many traditional 22.2 Ø the Impact 31.8’s open design keeps weight low, while maintaining plenty of strength and the oversize 31.8 Ø clamp ensures that your bars stay put.

with laser-etched graphics. Use the Impact 31.8 with the BOX Maximus bars or other oversize diameter bars, for maximum gate pull.

Meets or exceeds ENBMX standards. RRP: £69.99

  • 53mm-PX-ST145331T: 250 grams/8.9 ounces
  • Stack height 30.5mm