Promax GRYF MTB Stem

The GRYF is a versatile, all-purpose stem. Its cold-forged construction makes it durable enough for aggressive mountain biking and trail riding, but its clean aesthetic works just as well on a city commuter bike.

The GRYF is designed for standard threadless forks with a 1 1/8-inch steerer tube, which is the most common size for modern mountain and city bikes.

You need to match the stem to your existing handlebar diameter. The GRYF is available in both 35mm and 31.8mm options, so check your handlebar specifications or measure the center section of your bar before ordering.

Cold forging aligns the metal's grain structure, which creates a stronger, more resilient part compared to cast or CNC-machined alternatives. This process allows the stem to handle the stresses of trail riding while keeping the weight down to 140g.

A 0mm rise means the stem sits perfectly flat, keeping your handlebar height neutral. This is ideal if you want to maintain a standard, balanced cockpit height without adding or subtracting elevation from your front end.

A shorter reach (35mm) will make your steering feel quicker and more responsive, while a longer reach (55mm) provides more stability and a slightly more stretched-out, efficient pedaling position. Choose based on whether you prioritize agility or comfort.