Promax Banger BMX Stem - 53mm Front Load Black CS-M90 Cassette Features a weight saving 4-bolt

Features a weight saving 4-bolt design with a BCD of 110 mm Ring Position/Type Outer Tooth Count 52 Drivetrain Speeds 11 Chainring BCD 110 Shimano Asymmetric Color Black Defined Color Black Combination 36/52T

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SilkShield bead to bead anti-puncture protection

7075 Machined Aluminum valve stem and cap

Promax Banger BMX Stem - 53mm Front Load Black CS-M90 Cassette Features a weight saving 4-boltBanger 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 Stem Type Front Load Stem Angle (deg) 0 Length 53 Rise 5 Reach 53 Bar Clamp Diameter (mm) 22. 2 Color Black Weight 269 Defined Color Black