Promax Impact Stem

This stem is designed for handlebars with a 31.8 mm clamping diameter. Please double-check your current handlebar size, as many traditional BMX bars use a 22.2 mm diameter and will not fit this stem without a shim.

A top-load stem like the Promax Impact typically raises the handlebar height, which can provide a more comfortable, upright riding position. It is a popular choice for riders looking to improve leverage and control during jumps and technical maneuvers.

Yes, this stem is compatible with a standard 1 1/8-inch (28.6 mm) steerer tube, which is the industry standard for most modern BMX bikes.

Cold-forging aligns the grain structure of the aluminum for superior strength, while the CNC-machining process removes excess material to keep the weight down. This combination results in a stem that is both durable enough for aggressive riding and light enough to keep your bike agile.

Yes, the four-bolt faceplate design is engineered to distribute clamping force evenly across the handlebar. This setup is highly reliable for freestyle riding, as it helps prevent the bars from slipping or rotating during hard landings and aggressive maneuvers.