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For Brompton w/ 7 speed gearbox new upgrade P line/T line shifting system resin bicycle rear derailleur tensioner

187.50 $

202 in stock

Additional information

Origin

Mainland China

Type

Rear Derailleur

Components

Derailleurs

Description

Product Description

For Brompton modification supports external three-speed to seven-speed, converts the c line structure to P line, uses a 10s sprocket, and the travel and range of the chain tensioner is compatible with a maximum of 7-speed
It is generally recommended to refit to within 5 speed, stable and reliable, use 9s sprocket, gear ratio 11-13-15-17-21
If it's a 6-speed, use a 9s sprocket with a gear ratio of 11-13-15-17-19-21





















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