[Swansea Hackspace] Bike front derailliers

[David Davies-Day]

If you're looking for cheap and friendly, Re-cycle (behind The Mill pub, just up from the Westbourne) do new and used parts and their labour charges and really good.

Your front derailleur is not going down into the smaller gears on its own and needs a push?

The spring is not strong enough to pull it down after you change down and let more cable into it,  could be one of the following.

1. The inner cable has rusted slightly inside the outer cable and is causing friction that is too much for the spring.

2. Pivot points of the derailleur have corroded and are causing too much friction for the spring.

3. The gear shifter is not letting the inner cable out fast enough, possibly corrosion.

4. Any combination of the above.

Most are easily remedied,  Wilkinson do cheap reaplcement inner cable, usually really simple to change the front, I've done mine while the bike is still locked up outside the store front.


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-------- Original message --------
From: Matthew Daubney <matt at daubers.co.uk>
Date:2018/03/11 13:20 (GMT+00:00)
To: Swansea Hackspace <hackspace at swansea.hackspace.org.uk>
Cc:
Subject: [Swansea Hackspace] Bike front derailliers

Hello!

I spent a day a couple of weekends ago cleaning my bike down and getting it ready for the one day of summer we will be shortly due.

I took it out today for a ride and noticed that the front derailleur is not functioning at all really. If I push the derailleur it works, but it doesn’t seem to be moving of it’s own volition.

Me and bike gears have a bit of a history where I’ve generally tried to fix something and made it much, much worse, so could someone give me a hand diagnosing it? It might just want replacing, and that’s fine (but annoying) and I’d rather be certain that that’s the case first.

Alternatively! Can anyone rate any local bike shops that do repairs? I know there’s a largish one here in Uplands and one near the guild hall, but I have no idea if their any good or overly expensive?

Thanks,

Matt Daubney
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