Promax Impact Stem
Best durable upgrade for aggressive trail and freestyle riders.
This is a no-nonsense component for riders who value structural reliability over flashy adjustments. The top-load design locks your bars into a fixed, zero-degree position, sacrificing the ability to tweak your rise for the sake of a rock-solid, consistent cockpit feel.
$49.99
at
Pro Bike Supply
More Impact options
Who it's for
- BMX riders seeking maximum handlebar stability during heavy landings
- Weight-conscious racers looking to shave grams from their setup
- Competitive athletes needing a precise, customized reach for better control
Who should skip it
- Riders who prefer a taller handlebar position for comfort
- Home mechanics using basic or worn-out hand tools
- Casual riders prioritizing vibration damping over absolute steering precision
Performance breakdown
Structural Rigidity
Solid construction ensures minimal flex during aggressive handling and steering maneuvers.
Installation Simplicity
Standard top-load design makes swapping bars and adjusting height straightforward.
Weight Efficiency
Sturdy build prioritizes durability over ultralight racing performance metrics.
Cockpit Compatibility
Fits standard 22.2mm bars and 1-1/8 inch steerers with ease.
Aesthetic Versatility
Clean, understated black finish blends seamlessly into any bike build.
Handling Precision
Zero-degree rise provides a predictable, stable feel for everyday riding.
Key Specs
Stem Length
60 mm
Stem Angle
0 degrees
Steerer Tube Clamp Diameter
28.6 mm
Handlebar Clamp Diameter
22.2 mm
Stack Height
30.5 mm
Weight
278 grams
Stem Type
Threadless
Intended Use
BMX
Number of Handlebar Clamp Bolts
4
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Ask Metto anything about the Promax Impact Stem before you decide.