JetBlack Whisperdrive Freehub Shimano-SRAM 10

JetBlack Whisperdrive Freehub ShimanoSRAM 10. The JetBlack freehub ShimanoSRAM with 10 speed spacer is designed for the WhisperDrive indoor trainer. The Direct drive connects directly to the trainer, rather than your rear wheel turning a roller. The WhisperDrive is the first direct drive indoor trainer compatible with 12 x 143mm thru axle bikes Features Designed specifically for use on the JetBlack WhisperDrive indoor trainerSuits ShimanoSRAM with 10 speed spacer equipped bikeGenuine JetBlack partWeight 86gBuyJetBlack Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.