Bike Forums - View Single Post - Brompton- what changes over years? Innovations?

01-02-19 | 11:47 PM

#2

1nterceptor

LET'S ROLL

Joined: Nov 2009

Posts: 4,789

Likes: 59

From: NEW YORK, NY - USA

Bikes: 2014 BMC Gran Fondo, 2013 Brompton S6L-X

2012 and below used a one piece crank arm/chainring:

2013 and up have spider crank; standard 130 bcd chainwheel.
Much easier to play with gearing; cheaper replacement when ring wears out:

__________________
One day: www.youtube.com/watch?v=20X43026ukY&list=UUHyRS8bRu6zPoymgKaIoDLA&index=1

Reply