SRAM RED D1 cranks, 1x12, 170 mm, carbon, without bearings
Cranks SRAM Red 1x D1 24mm 170 40T (bearings are not part of the package)
Triathlon. Time clock. Cyclocross. Some disciplines are destined for 1x. While our new X-Range™ concept in a 2x configuration incorporates much of the simplicity of a 1x system, there are still disciplines where a single derailleur is simply the best option. SRAM RED® 1 cranks offer the most demanding riders the right mix of features - aerodynamics, durability and simplicity.
The single-transducer drive simplifies use.
The 48 and 50 tooth variants have direct mount aero converters for better aerodynamics.
Classic converters can be replaced with a single key in no time.
The SRAM X-SYNC™ shifter with a wide-narrow tooth profile allows for maximum chain retention.
The laser-engraved surface treatment of the transducer is more durable.
The DUB center axis extends life, facilitates assembly and allows greater compatibility.
The cranks can be upgraded to a powermeter.
Center 24 mm
Groupset | SRAM Red |
Gears | 1x12 |
product ID | 113898 |

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