BMX cranks are the two metal lever arms that connect a bicycle’s pedals to the bottom bracket spindle, acting as the primary component of the drivetrain for transferring human power into forward motion.
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Stress Railhop v2 Black
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BMX cranks—especially for freestyle—are designed for extreme durability to withstand high-impact landings, grinds, and, in some cases, tricks like tailwhips.
Core Definitions
- Crank Arms: The levers where the pedals are attached, typically ranging from 160mm to 180mm in length.
- Spindle (Axle): The rod that passes through the bottom bracket to connect the two arms. Common diameters include 19mm, 22mm, and 24mm.
- Sprocket Interface: Where the sprocket attaches to the crank arm, or in the case of "spline drive," directly to the spindle itself.
- RHD/LHD: Refers to Right-Hand Drive or Left-Hand Drive, indicating which side the sprocket is on
