The 3D continues to lead the 24 mm crankset market in terms of technology, performance and rigidity. It is Rotor's most lauded crankset, having helped athletes that rode it to win three grand tour jerseys (Yellow, Red and Green) and no less than 15 UCI elite world champion titles.The 3D's UBB24 axle is compatible with almost all bicycles on the market, irrespective of their BB type. But the qualities of the 3D's don't end there; the 3D is one of the most intelligent external bearing cranksets on the market.Universal Bottom BracketsThe UBB (Universal Bottom Brackets) system is not a standard; It's all standards. It allows installation of almost any 30 or 24mm axle crank from Rotor on the bike you have, regardless of its BB type. Rotor's "UBB" super-standard encompasses all BB standards. • Additional Information: - Q-factor: 148 mm - Without chain rings and bottom bracket - Regular firmware updates - Evaluation software which can be downloaded - Integrated lithium-ion battery, rechargeable - Waterproof: IPX7 - Measurement: Power, cadence, balance, torque efficiency, round step - ANT +, Bluetooth smart • Weight: 530 g • Intended use: Road Material • Crank arm (s): Aluminium 7075-T6 Chainring • Chainring Number: Without Chainring Crank • Axle Clamp: 24mm • Hole circle type: compact • Chain line: 43.5 mm • BCD: 110 mm • Build: 5-arm • Compatability circuit: 11-speed Delivery • Delivery: Rotor 3D24 crank, 5 chainring screws; without chainrings and bottom bracket
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