Super B Bike Bicycle Rear Derailleur Hanger Extension

The device extends the position of road derailleur to run a wide-range mountain bike style cassette. 

Size: 32 x 36mm       

Compatibility:

• Designed for use with 10 or 11-speed 11-36t and 11-40t cassettes..  
• Optimised for Shimano 10/11 speed derailleurs and shifters but will work with 9 speed and SRAM and Campagnolo groups.  Please note that 11-36t is the max cassette for Campagnolo groups. 
• Only works with standard hangers.  
• Double chainrings will only work with medium cage derailleurs.
• Will not work with triples.
• Not compatible with direct mount native frames.
• If converting a Shimano road drivetrain to 1x, you may need a chain guide.
• 2x chainring setups are only compatible with med cage derailleurs.

10s Cassette Compatibility:

• 11-32: Not Required (GS medium cage rear derailleur works) 
• 11-34: Single or Double Chainring
• 11-36: Single or Double Chainring (front rings can be no more than 14 teeth different)
• 11-40: Single or Double Chainring (front rings can be no more than 10 teeth different)
• 11-42: Not Supported

11-speed cassette compatibility:

• 11-32: Not Required (GS medium cage rear derailleur works)
• 11-36: Single or double chainrings. 
• 11-40:  Single and doubles as long as the chainrings are no more than 14 teeth different.
• 11-42 and 10-42 cassettes are not compatible.