Includes: 1pcs cassette ,
7speed 11t-13t-15t-18t-21t-24t-28t
Material: Chrome
Integrated, CNC machined
Weight: 158g(7s)
Fit for brompton folding bike upgrade to external 7 speed, SHIMANO or SRAM Road or MTB type

Only suitable for lock freewheel wheels

Brand:SILVEROCK