SRAM RED 2x Chainring Kit - 50/37t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 ModelNumber=D1531 Cassette Body Type Shimano/SRAM 8

Cassette Body Type Shimano/SRAM 8 9 10 Speed Material Aluminum

all versions feature 312 stud pockets fro unbeatable traction on ice

Ensuring that the transition from pavement to snow is as seamless as possible

Bundle includes heart rate monitor

Understand how each run affects your body and get personalized weekly mileage recommendations to avoid overtraining

SRAM RED 2x Chainring Kit - 50/37t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 ModelNumber=D1531 Cassette Body Type Shimano/SRAM 8One piece 2x chainring results in a lighter weight, stiffer, more durable crankset X Range gearing technology gives you more range and a smoother gear progression, so youre always in the right gear Crisp and accurate front shifts Compatible with 8 bolt crank arms SRAM Model ID: CR RED KIT E1 TECH SPECS Chainring Comp. SRAM FlatTop Speed 12 Teeth 50 37 BCD Direct Mount SRAM 8 Bolt