Brompton 3 speed shifter.

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tempsperdu
Posts: 108
Joined: 9 Jan 2014, 8:31pm

Brompton 3 speed shifter.

Postby tempsperdu » 11 Sep 2019, 10:17pm

Can anyone point me at an exploded diagram of a 3 speed gear shifter fitted to a Brompton please? It is a 2017 3 speed single lever with bell and brake lever on a single mount.
It has started to stick in position of gear selected rather than return to rest position. Happy to take it apart but would like to get a sight of what it is like inside before hand.

Brucey
Posts: 35631
Joined: 4 Jan 2012, 6:25pm

Re: Brompton 3 speed shifter.

Postby Brucey » 11 Sep 2019, 10:44pm

the first thing I would check is that the cable is not draggy, and that it is definitely the shifter which is at fault.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

drossall
Posts: 4579
Joined: 5 Jan 2007, 10:01pm
Location: North Hertfordshire

Re: Brompton 3 speed shifter.

Postby drossall » 12 Sep 2019, 9:03am

Have you tried spraying some oil or white grease into it? That freed up my older shifter.

tmac100
Posts: 40
Joined: 13 May 2016, 1:47pm

Re: Brompton 3 speed shifter.

Postby tmac100 » 13 Sep 2019, 6:00pm

Brucey wrote:the first thing I would check is that the cable is not draggy, and that it is definitely the shifter which is at fault.

cheers


Yup, been there too. Lube is pretty easy_ I started with WD-40 to loosen then did a disassembly and lube with a synthetic product. Cannot remember which one (I have several) ... The lever was fine in my case.