Having difficulty on climb or slope while riding a 4 speed Brompton?
This upgrade kit will help you overcome the challenge, by using the P/T line 4 speed stock wheel.
Upgrade your P or T line Brompton 4 speeds to 7 speeds with 11-28T wide ratio cassette.
Compatible with:
- Brompton P or T line 4 speed stock wheels
- CHPT3 V4 stock wheels
- or, 5 to 7 speed 3rd party wheels
Upgrade kit includes:
- H&H 7 speed SQT shifter (Right side, black)
- H&H derailleur V2 + Tensioner
- H&H 11/13/15/18/21/24/28T semi-unibody cassette (black)
- YBN 11 speed Chain (black)
- H&H housing Gatherer for rear brake
*Price excludes installation