Promax Impact BMX Stem - 53mm Top Load Black Attachment Method-Straps Each bottom bracket is hand

Each bottom bracket is hand assembled using a hollow chromoly spindle precision sealed bearings forged and CNC-machined alloy cups and a composite center spacer/seal

When you need the cargo capacity that a rack provides

Backing Plate Material Steel Compound Organic Heat Sink No Pad Shape Number 36

} Compatible with HG 8-11sp freehub bodies

Promax Impact BMX Stem - 53mm Top Load Black Attachment Method-Straps Each bottom bracket is handThe Impact is a top load BMX stem cold forged from the highest quality 6061 T6 aluminum then CNC machined to refine the shape and further reduce weight. CNC machined 6061 T6 aluminum Bar Clamp Diameter (mm) 22. 2 Color Black Defined Color Black Length 53 Reach 53 Rise 5 Stack Height 30. 5 Steerer Clamp Diameter 1 1 8" Stem Angle (deg) 0 Stem Type Top Load Weight 278 Size 53Mm