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TRANZX is a manufacturer of high end bike components, and produces a range of quality indoor trainers.

The JD113Q trainer uses Magnetic resistance allowing it to be smooth and very quiet. It is an excellent value, performance indoor trainer for those who are serious about stationary trainers. Ideal for working out at home or warming up before a race.

The JD-113Q indoor trainer does not feature adjustable resistance. The trainer is pre-set at medium/hard resistance.

A replacement quick release skewer is included allowing you to exchange your lightweight alloy skewer and prevent it from damage when using the trainer.


  • Suitability: Fits most bikes (20",24",26", 700c & 28")
  • Resistance: Extremely Powerful Magnetic, smooth and quiet
  • Construction: Steel
  • Weight: 8.5kg

Please note:

If your rear wheel is secured with a nut and not a quick release skewer then it is possible that the tyre will sit too far to the left of the roller and possibly touch the magneto housing. If this is the case you will need to space out the axle on the left side of the frame to centralise the wheel on the roller. Please contact customer services for further information.

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