H&H 6-7 Speed Unibody Cog Set for Brompton Bicycle P/T Line

• Integrated one-piece design enhances rigidity and drivetrain stability
• Heat-treated construction increases wear resistance and durability
• Wider gear range ideal for climbing and urban commuting

Material

Steel 

Ratio

6 Speed 12-28T 12-14-17-20-24-28 (Fits 4-5 speed free hub) 

7 Speed 11-28T 11-13-15-18-21-24-28 (Fits 4-5 speed free hub) 

7 Speed 11-32T 11-13-16-20-24-28-32 (Fits 4-5 speed free hub) 

Weight

6 Speed 102g

7 Speed 100g

7 Speed 119g