cycleops magneto

chaymck

Evening

I recently purchased a 2nd hand cycleops magneto. While my bike is on the trainer I cant change to the large chain ring. The bike is set up fine and gear selection works perfectly on the road. The bike is a giant defy, compact chain set with external BB.

The gear selection only seems to be a issue when the trainer roller is in contact with the tyre. I've checked the quick release is done up nice and tight, no cables are twisted or fouled while on the trainer.

Any ideas.

Thanks

amaferanga

Shifting is always more sluggish on a turbo IME. My bike shifts to the big chainring with much noise on the turbo, but smoothly on the road. Think its because you can't ease off the same on a turbo as you can on the road. Being very deliberate with your shifting and shifting to the big ring with the chain on the smaller sprockets helps.

Alex_Simmons/RST

amaferanga wrote:

Shifting is always more sluggish on a turbo IME.

Yes, that can be the case. I find with our clients that it's a sign that some adjustment might be needed, or the derailleur itself is a bit weak/bent or gear change cable needs replacing.

chaymck

Thanks, adjustment has sorted it. Surprised how much further over the front mech needs to be to allow shifting- when compared to road riding. Hope it doesn't onerous shoot when next out!