- The magnets don't stay put
- How do I get more resistance?
- My wheel sways side-to-side while pedalling and sometimes touches the magnets
- Troubleshoot road feel
The magnets don't stay put
To ensure the quick release is tight, lift the quick release lever to the open position, twist it clockwise, and then push it into the closed position. In the closed position, the lever's convex side will face outwards. It should be quite stiff to push into the closed position.
How do I get more resistance?
- Shift to a higher gear to spin your wheel faster. The STAC Zero has a square power curve, so doubling your wheel speed will quadruple your watts, and our road feel will improve too.
- Set the magnets slightly closer to your rim. This will increase the amount of eddy currents generated in your wheel at a given wheel speed, and can dramatically increase the amount of resistance. The road feel is better when the magnets are further away, so you'll want to try gearing up first.
It should be possible to achieve over 1000 watts with a typical aluminum-construction wheel.
Tip: See the manual for tips on using your magnet spacer.
Tip: If you've lost the included magnet spacer, use a pad of sticky-notes as a spacer. Easily and precisely adjust the width by removing notes.
My wheel sways side-to-side while pedalling and sometimes touches the magnets
This can occur if you're doing particularly hard intervals, out of the saddle work, or have the magnets set very close to the wheel. It can make the resistance feel "grabby", because the wheel may suddenly get close to one magnet array, briefly greatly increasing resistance.
- Make sure to use the included trainer skewer.
- Tighten threaded rods and lock the wing nuts against the frame once your bike is centred on the trainer.
- Set the magnets slightly wider. This will lower the peak resistance of the trainer, but will reduce the likelihood of your wheel rim getting close to the magnets.
Troubleshoot road feel
"Road Feel" on a trainer describes how closely it replicates the feeling of riding on the road.
To improve the road feel on a STAC Zero,
- Set the magnets wider and shift to a higher gear. Spinning the wheel faster improves road feel by storing more energy in the wheel, like a flywheel.
- Instal the wheel weights included with your trainer. This also increases the flywheel effect.