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As the lightest rotor crank for road bikes, the 3D + uses the 7055 aluminum and a TDS technology redesigned construction to reduce weight while increasing rigidity.
100% CNC machined
suitable for oval and round chainrings (must be ordered separately)
compatible with 9, 10 and 11-speed drives
Rotor uses only the best materials for the best cranks. 7055 combines the superior physical properties of a 7000 alloy with incredible fatigue resistance. Each rod of raw material is ultrasonically inspected to ensure that it is free of defects inside. From 7055 Rotor manufactures the completely CNC milled cranks like FLOW, 3D + and REX 1.
Rotor CNC cranks are stiffer than the competitors' cranks due to the Trinity Drilling System (TDS). In this procedure, three full holes are drilled from the bottom bracket to the pedal. This creates a box-like grid, similar to a box girder bridge. As a result, the cranks are extremely stiff and still lose weight, whereby an outstanding relationship between stiffness and weight is achieved.
The UBB System (Universal Bottom Bracket) allows Rotor to use both 24mm and 30mm axle diameter, making it compatible with almost any frame on the market.
Material crank arms: Aluminum (7055)
Material Axis: aluminum
crank arm length: 165.0 mm, 170.0 mm, 172.5 mm, 175.0 mm
chain line: 43.5 mm
Q-factor: 148 mm
shaft diameter: 30 mm
Compatible housing width (for BSA bottom bracket ): 68 mm bottom bracket (recommended): BSA , BB386EVO , BB86 , PF30
compatibility: 2- Speed
chainring attachment: 110 mm bolt circle, 5-arm
Weight: black-red / 172.5 mm: 480 g
1 x crank arm rotor 3D +, right
1 x crank arm rotor 3D +, left
1 x crank axle rotor
1 x crank screw rotor
2 x spacer 11.5 mm
2 x plastic disc
1 x chainring bolt set rotor, 10-piece
without bottom bracket
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