Promax Banger BMX Stem - 48mm, Front Load, RedBanger stems have a front load design and can be used with either side up, providing a 5 millimeter drop or rise. Available with 48 millimeter and 53 millimeter extensions, they are cold forged from the highest quality 6061 T6 aluminum then CNC machined to enhance the shape and further reduce weight. Uses M6 bolts Product Specifics Bar Clamp Diameter (mm): 22. 2 Color: Red Defined Color: Red Length: 48 Reach: 48 Rise: 5 Stack Height: 30. 5 Steerer