JetBlack S3 Sport Indoor Trainer


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The brand new entry-level trainer from JetBlack, the JetBlack S3 Sport Indoor Trainer is an affordable way to convert your bike to an indoor trainer! Featuring a single resistance level that is perfectly optimized for riding indoors and increasing your fitness. Simply replace the rear skewer or thru-axle on your bike with the one provided, clip your bike into the trainer and you’re ready to go. The JetBlack S3 Sport Indoor Trainer comes pre-assembled and ready to go right out of the box, and the wide base and anti-slip feet offer incredible stability while riding. And when you’re done, the S3 folds up into a compact shape for easy storage! If you’re after an affordable trainer to help increase your fitness, then the S3 Sport Indoor Trainer is made for you!


  • Pre-assembled
  • Includes a quick release and thru-axle compatible skewer for easy mounting
  • Alloy roller for smooth riding
  • Single resistance level


  • Wheel Compatibility: suits road & mountain bike wheels between 700c, 29″, 27.5″, and 26″
  • Dimensions: 51.0 x 23.0 x 59.0 cm
  • Weight: 8.0 kg

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