Pulley Set 6/7/8 Speed. Aids All models in this series

All models in this series are made of FSC certified wood

Get smooth shifting under high-load pedalling in muddy conditions

Works great on brakes or other places where dirt collects

Specifically designed for use with Saris trainers

Numbered gear display is positioned below the handlebar and indicates gear position at a glance

Pulley Set 6/7/8 Speed. Aids All models in this seriesTY05 15 20 22 30 CT92 MJ05 Shimano 6 7 8 Speed 10T Upper Lower Derailleur Tension & Guide Pulley Set Assembly. These will work with most 6 to 8 speed Shimano Derailleurs that use a ten tooth pulleys. Count one of your existing pulleys. Most later Shimano derailleurs use an 11T pulley and this item would not fit those derailleurs. Most early 6 8 speed ones use 10 tooth pulleys.