The Impact is Promax's top-load BMX stem. Available in 48 and 53mm lengths, these stems are cold forged from 6061-T6 aluminum then CNC machined to final shape for the maximum weight to strength ratio.
- Open design kees weight low and strength high
- Meets or exceeds ENMBX standards
- 1-1/8" steertube clamp, 22.2mm bar clamp
- 265 grams