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The ACS Maindrive 1" sealed threadless integrated headset for 38mm headtubes w/ 26
This is an aluminum post with a 2-bolt
125" and "MOTOCROSS-GRIP" on both sides of the tire
110mm chainrings and has a 19mm bore
Please note that
Shimano DXR MX71 2-piece 24mm BMX Crank - w/ Euro BB - 180mm - Polished Silver 31.2mm The ACS Maindrive 1" sealedThe Shimano DXR MX71 race cranks are an evolution of the popular Shimano Hollowtec II cranks featuring the same lightweight, yet incredibly stiff, hollow 6061 T6 aluminum arms with steel pedal boss inserts and a redesigned 4 bolt spider gear to further reduce weight. The 24mm hollow chromoly spindle comes pressed to the drive side arm for increased strength, while the included external Euro BB helps extended bearing life and increases rigidity by
US$ 23.99
US$ 499.50
US$ 19.56