Drivetrain & Shifting

This replacement chain pusher/wing plate set is responsible for shifting the chain onto one of two cogs on 2- and 6-speed Bromptons.

Replacement chain for your Brompton.

Necessary chain tensioner for 1 & 3 speed model Bromptons.

Necessary chain tensioner for 2 & 6 speed Bromptons.

Brompton 2- and 6-speed bikes require these jockey wheels on their rear derailleurs.

Brompton 1- and 3-speed bikes require these jockey wheels on their chain tensioners.

A 44 tooth replacement chainring for Black Edition Brompton bikes.

A 50 tooth replacement chainring for Brompton bikes.

Cable-to-derailleur parts for older Brompton models.

Replacement 3-speed cable pulley wheel and assembly for Brompton bikes.

Pre-cut shifting cable and housing for Bromptons made prior to 2017 with H-type handlebars that need the left hand side (Derailleur Gear) cable replaced.

Pre-cut shifting cable and housing for Bromptons made prior to 2017 but after 2004 with M-type handlebars that need the left hand side (Derailleur Gear) cable replaced.