the direct drive belt is like the chain on your bike, there’s no set ride time or mileage to indicate when it’s time for service. It all depends on how many hours you ride and how many watts the trainer is resisting.
The more you ride, the harder you push, the sooner the belt will need to be replaced.
You know the time has come when the belt teeth no longer line up, which can be diagnosed by a popping noise. Saris made the Hammer and H2 direct drive belt serviceable from wherever you ride.
- The package includes the replacement belt and three tools for use with Hammer and H2 smart trainers