top of page

4 Speed X4 Upgrade

Store / 4 Speed X4 Upgrade

Brompton 4-speed X4 upgrades / mods. Reuse your old wheelset (C Line) and expand to #WiderThanPTLine 4-speed gear range.

Filters

Clear all
Filters
Clear all
Brompton 5-Speed derailleur upgrade kit for A/C Line (MiniMODs), Tensioner: Black
Brompton 5-Speed derailleur upgrade kit for A/C Line (MiniMODs)
Brompton 5-Speed derailleur upgrade kit for A/C Line (MiniMODs)
£219.00
Brompton 7-Speed derailleur upgrade kit for P-T Line (MiniMODs), Tensioner Only: Black, Parallelogram X derailleur + ceramic bushing: Black
Brompton 7-Speed derailleur upgrade kit for P-T Line (MiniMODs)
Brompton 7-Speed derailleur upgrade kit for P-T Line (MiniMODs)
£219.00
4 Speed Rear Hub for CLine Brompton with Ceramic Bearing 28 Holes (MiniMODs), Component Option: (a) Front + Rear Hubs Only, Color: Red
4 Speed Rear Hub for CLine Brompton with Ceramic Bearing 28 Holes (MiniMODs)
4 Speed Rear Hub for CLine Brompton with Ceramic Bearing 28 Holes (MiniMODs)
£175.00
4 Speed X4 Brompton 2/3 speed upgrade kit (MiniMODs), Option: (a) Circlip Type
4 Speed X4 Brompton 2/3 speed upgrade kit (MiniMODs)
4 Speed X4 Brompton 2/3 speed upgrade kit (MiniMODs)
£37.00
Cog Set X4 11/13/17/21T for Brompton 2/6 speed (MiniMODs)
Cog Set X4 11/13/17/21T for Brompton 2/6 speed (MiniMODs)
Cog Set X4 11/13/17/21T for Brompton 2/6 speed (MiniMODs)
£93.00
PYC Chain 11 speed Hollow chain Ultra light /232g-116L /QR, COLOUR: Black
PYC Chain 11 speed Hollow chain Ultra light /232g-116L /QR
PYC Chain 11 speed Hollow chain Ultra light /232g-116L /QR
£37.00
Brompton Stock Thumb Shifter & Bell Adapter (MiniMODs), Color: Black
Brompton Stock Thumb Shifter & Bell Adapter (MiniMODs)
Brompton Stock Thumb Shifter & Bell Adapter (MiniMODs)
£21.00
Teflon Brake Wire Set with End Cap (MiniMODs)
Teflon Brake Wire Set with End Cap (MiniMODs)
Teflon Brake Wire Set with End Cap (MiniMODs)
£5.00
Thumb Shifter mod kit 2 to 3 speed Brompton upgrade for left hand (MiniMODs), Component: Two White Plastic bits for 3 Speed index 1/2/3 display label
Thumb Shifter mod kit 2 to 3 speed Brompton upgrade for left hand (MiniMODs)
Thumb Shifter mod kit 2 to 3 speed Brompton upgrade for left hand (MiniMODs)
£17.00
7 Speed Shifter double tap left hand for Brompton upgrade (MiniMODs), Thumb Shifter Only: Silver
7 Speed Shifter double tap left hand for Brompton upgrade (MiniMODs)
7 Speed Shifter double tap left hand for Brompton upgrade (MiniMODs)
£97.00
7 Speed Tadpole Shifter for Brompton upgrade (MiniMODs), Tadpole Shifter Only: Black
7 Speed Tadpole Shifter for Brompton upgrade (MiniMODs)
7 Speed Tadpole Shifter for Brompton upgrade (MiniMODs)
£97.00
Brompton 4 speed BLACK derailleur gear shifter with integrated brake lever as seen on P/T Line
Brompton 4 speed BLACK derailleur gear shifter with integrated brake lever as seen on P/T Line
Brompton 4 speed BLACK derailleur gear shifter with integrated brake lever as seen on P/T Line
£52.00
Brompton Bicycle 5 speed thumb shifter (d: 22.2) handlebar w 2m cable (Sturmey Archer)
Brompton Bicycle 5 speed thumb shifter (d: 22.2) handlebar w 2m cable (Sturmey Archer)
Brompton Bicycle 5 speed thumb shifter (d: 22.2) handlebar w 2m cable (Sturmey Archer)
£30.00
Display prices in: GBP
bottom of page