Shimano jockey wheels mtbgenuine replacement jockey wheels for shimano rear gear mechs we advise customers to be careful in choosing the correct combination of jockey wheels to match their shimano rear mechs as they use a model specific design features mtb specifica 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products buy shimano components from chain reaction cycles the worlds largest online bike store