Shimano MF-TZ510-6-CP Multi-Speed Freewheel - 6-Speed 14-28t MFPN=11.4118.065.521 Big Betty works perfectly on

Big Betty works perfectly on the rear wheel when combined with the much-loved Magic Mary

The cartridge system is extremely reliable and easily serviceable

Color BlackDefined Color BlackGender/Age MensShorts Style BaggySize X-LargeMaterial SyntheticWindblock NoneWater Protection Water ResistantClothing Features PocketActivity CyclingChamois None

4 Material Aluminum Type Quick Release Defined Color Black

Designed for maximum traction on crushed gravel and hard dirt

Shimano MF-TZ510-6-CP Multi-Speed Freewheel - 6-Speed 14-28t MFPN=11.4118.065.521 Big Betty works perfectly onShimano MF TZ510 6 CP Multi Speed Freewheel 6 Speed 14 28t. Shimano Multi Speed Freewheels TECH SPECS Range 14 28 Cassette Cogs 14 16 18 21 24 28 Drivetrain Speeds 6