Comments on: 2009 Brings New Innovations For Brompton Folding Bikes

By: Martin Hartley

Martin Hartley — Wed, 12 May 2010 12:10:08 +0000

A rear spacing of 120mm would easily allow the fitting of one of Sturmey-Archer’s S-RF5 5-speed hubs. Available with either a 111mm or 119mm OLD, the only real issue would be that they are only made with 36 spoke holes, whilst I believe Brompton’s rims are 28-hole.

By: si

si — Sun, 12 Oct 2008 15:15:44 +0000

also part of the issues is the rear dropout spacing on a brompton which is 120-122mm…

not wide enough without reengineering the rear triangle to suit 8 speed hubs etc

By: another Paul

another Paul — Fri, 10 Oct 2008 13:47:25 +0000

I recall reading somewhere that the 8-speed internally geared hubs are not favoured by Brompton due to the inefficiency of the epicyclic gears ( as low as ~80% in certain ratios ). Whether true or not I do not know. Having the option would make sense, in my opinion, for those that would happily trade any efficiency for some cleaner controls.

By: Chris

Chris — Wed, 08 Oct 2008 06:15:29 +0000

@paul

You’re totally right and we hope that Andrew Richie will drop by tell us what bad boys we’ve been!

All enthusiasts are entitled to their opinion. whether anyone will listen or not is another question…

By: paul wilson

paul wilson — Tue, 07 Oct 2008 18:03:18 +0000

After strugling for many years to (get it right), finally with the finished product the definitive folder, why would Andrew Richie listen to all this good advice? where were the experts when he needed them. It is I think a little arrogant, to say the least, to promote ideas and offer suggestions about his 20year overnight success.