The Jet Black WhisperDrive is the first direct-drive indoor trainer compatible with 12x143mm thru-axle bikes. Direct drive, of course, means your bike connects directly to the trainer, rather than your rear wheel turning a roller. The WhisperDrive is sold with a SRAM/Shimano 10/11x Freehub Body. If you have an 11-speed mountain bike with SRAM groupset and want to train on the JetBlack WhisperDRIVE indoor trainer you'll need to purchase the specific JBT-75C XD Driver Freehub Body made by JetBlack which, as luck would have it, you can purchase right here at Pushys. Talk about serendipity.
• Designed specifically for use on the Jet Black WhisperDrive Indoor Trainer
• Suits SRAM 11 Speed MTB Cassette equipped bike
• Converts WhisperDrive Freehub Body to SRAM 11SP
• Genuine Jet Black part
• Weight: 79g