6″ 160mm Replacement RED Jockey Wheel for Caravan/Trailer/Axle/Trolley » The Towing Warehouse
10T 7/8 replacement jockey wheel too wide for rear derailleur. Thought I had bought a compatible replacement, but the original shimano deore LX screw isn't long enough to pass through the new
derailleur - How do I tell if jockey wheels need overhaul or replacement? - Bicycles Stack Exchange
When to replace your jockey wheels - avoid an expensive mechanical issue and improve your shifting | road.cc