A tale of two drivetrains

February 19, 2013 at 20:22 | Posted in bicycles | 2 Comments
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ficed gear drivetrainI finally got around to fixing the drivetrain on my fixie. I spend a few weeks ummming and ahhhing about buying the bits online and doing it myself  – I even went so far as to put them all into a shopping basket on Wiggle, but never actually pressed ‘purchase’. The main reason was I was worried I wouldn’t be able to get the lockring off the the fixed sprocket. I do have the right tool, but it’s a rather puny, cheapo affair that I suspected would not be up to the task. I did then consider also buying a decent tool to do it with (which would still have worked out cheaper than the LBS), and perhaps a new lockring (in case I trashed the old one getting it off), but by this time it was all getting too hard, so I decided to go to the LBS instead. Oh, and I am also too lazy to do these things myself.

I took the bike in in November, but for various reasons it took until the end of January to get the work done. Now, I don’t want to slag off my LBS here, as they re really nice guys who are generous with their time and do a good job for me. But, well, sometimes I do thing small stores could be a little more organised. What with my order getting lost in some diary transfer, confusion about what size chainwheel I needed and a discussion about whether it was a freewheel or fixed gear I wanted it all took a long time to get sorted out, what with wrong parts having to be sent back and so on. Customer service is about more than just great service whilst you’re in the shop; it also extends to getting the details right first time and not losing track of orders. Oh well, sermon over. I suppose it meant I eked a few more months out of a pretty-much-dead drivetrain.

Whilst the fixie was in surgery, I of course rode the Radish. And in doing so realised it too needed some TLC; the front brake pads were worn down and the gears were not changing smoothly. So I booked it in for a service. It turned out that the drivetrain on that was ‘end-of-life’ too; the technician put the chain wear gauge on it and declared ‘it’s well over 2% stretched – that chain is never going to change gears smoothly. You need a new chain and cluster.’. Funny; it never occurred to me that it might be worn out – even though the bike is four or five years old and it’s still on the original chain. So this all had to be arranged too; thankfully with no ordering stuff-ups so it was all dealt with very quickly and efficiently.

So now I had two new drivetrains, with both bikes feeling silky smooth and lovely to pedal. The fixie did indeed feel teriffic – all the play in the drivetrain was gone, as was the grinding, rattling sound of the chain. Just smooth, oiled whirring. But the Radish didn’t seem so good; something as still rattling and grinding around. I gave it a quick once over, and discovered the culprit – the bearings in the pedal were toast, and the right pedal was wobbling and grinding around like the ones on an old kids trike. Back to the LBS for a set of new pedals, and things seemed better again. But then not. The drivetrain still felt a bit grindy, and the gears were jumping. I was riding along unhappily, thinking that I would have to take it back to the LBS again, when I remembered something. I pulled up, and had a peek under the pannier. A-ha! Of course! The rear skewer had worked loose again! No wonder it was all a bit odd with the back wheel wobbling around all over the place. The LBS guys wouldn’t have know that it tends to do this, and that it needs to be super tight. So I tightened it up, and continued on my ride (and props to the fellow cyclist who stopped to ask if I was OK at 10.30pm last night when I was sorting it out – much appreciated).

Bliss. Smooth, oiled whirring and slick gear changes. Fellow cyclists unite – you have nothing to lube but your chains!

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2 Comments »

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  1. Hah! Did you make last bit that up 😉 I’m so gonna use it!

  2. You have a clean bike…clearly a role model for your children!


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