Rotor REX 2.1 Crankset X1

5042-386
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Description

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No twisting, no warping, just pure energy transfer. 7055 cold forged aluminum crank arms are drilled lengthwise to create a trellised structure that gives unparalleled stiffness-to-weight ratio. The stiffness means that each pedal stroke delivers more power and energy into your tires, saving you energy on your next big climb. Built with Rotor’s universal bottom bracket 30mm axle, these cranks are compatible with almost every bottom bracket available.

  • Made of CNC machined 7055 aluminum.
  • Trinity Drilling System creates a trellised design that offers exceptional stiffness-to-weight ratio in the crank arms.
  • 30mm aluminum UBB axle is compatible with almost all bottom brackets.

Tech specs

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Ideal for Mountain biking
Material 7055 aluminum
Length 172, 175mm
Bottom bracket included No
Made in Spain