Shimano SG-3R40 Internal Assembly for hubs with 189.4mm length Axle Model=Dura-Ace Track Cog Consider 34–38T chainring based on

Consider 34–38T chainring based on climbs and load

Built around 37mm stanchions and a Reverse-Arch lower leg design with the Hexlock SL2 axle Mezzer Pro is the stiffest chassis in its category

Tool-Free installation Rack Weight 32 Number of Bikes 2 Hitch Type 2" Receiver Bike Weight Limit (per bike) 40 Bike Mount Type Tray keyword search Markdown Market Tilt/Swing Tilt Receiver Size 2" Color Gray

Vendor Vittoria Manufacture Number 1115MO1230222BX Model Name Mastik One Category Patch kits

Available in various sizes versions and colors

Shimano SG-3R40 Internal Assembly for hubs with 189.4mm length Axle Model=Dura-Ace Track Cog Consider 34–38T chainring based onShimano Internally Geared Hub and Dynamo Small Parts.