Bike maintenance for dummies.
2 lurkers |
101 watchers
Jan 2017
5:31pm, 30 Jan 2017
4,529 posts
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WolfDancer
i think for such a vital part, it shouldnt be made out of cheap plastic but something a bit more substantial that can take the stresses going through it
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Jan 2017
5:54pm, 30 Jan 2017
5,152 posts
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Winded
I tend to agree - though the issue is mostly design, perhaps a side effect of no aluminium threaded bit in the BB to attach to or just general bike designer barmyness. Instead of the guide being screwed onto something and just being in compression it is held in place by lugs that the cables pull against so some of it is in compression and some in tension.
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Jan 2017
8:18pm, 30 Jan 2017
18,719 posts
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Stepford Wife
It'll be a cost-cutting exercise.
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Jan 2017
9:03pm, 30 Jan 2017
5,155 posts
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Winded
Maybe - but this was a £2k bike (nearly) and their £7k res at the time had/(still have?) what looks like exact t's the same part - cost cutting? £0.50 each instead of £0.70 each.What kind of idiot buyer would they have to have? More likely a weight cutting exercise - it's a 60cm frame and about 7.4kg with bottle cages. |
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Feb 2017
4:08pm, 1 Feb 2017
18,721 posts
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Stepford Wife
They'll be fractions of pennies. Multiply that by however many thousand bikes Canyon put them on and it all adds up. All hidden, unimportant bits of any bikes are cost-savers, and not what you'd source yourself. The bearings won't be amazing either.
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Feb 2017
7:12pm, 4 Feb 2017
5,183 posts
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Winded
Canyon sent me a part for free, fitted and all is well. It seems different to the original. A slightly smaller external size and a bit more solid - or maybe the old one had just be flexed a few thousand times
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Feb 2017
9:12pm, 17 Feb 2017
13,165 posts
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Yorkshire Pie
A chain length question... I currently have an 11-28 cassette. When I got 6800 fitted I got the longer rear mech so that I had the option of fitting a 32 tooth cassette if we ever went to the alps. We're going to the alps  I am fine with fitting the new cassette and chain, but what I'd ideally like to do is have two wheels - one with the 28 and one with the 32 and switch between them depending where I'm riding (I have several spare wheels...). Is there enough tolerance in the chain length to get away with that? And if so what's the best way to get the chain to the right length - I've seen various methods recommended! |
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Feb 2017
9:33pm, 17 Feb 2017
5,214 posts
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Winded
The methods allow for the extreme cogs to have enough chain. If you imagine you can run an 11-32 cassette and an 11-28 cassette (they sell both) you will see that you have a 28 ring on each. When yo have the 11-32 cassette on and change up to the 28 ring the spring in the rear mech takes up the slack - it will run in much the same way if you keep the chain length the same and have the 11-28. So yI imagine it should be fine - but of course you need it to fit the bigger cogs an die bit longer than you would ideally use just for 11-28. |
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Feb 2017
9:35pm, 17 Feb 2017
5,215 posts
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Winded
Oh - supplementary question - parktool.com |
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Feb 2017
7:01am, 20 Feb 2017
5,224 posts
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Winded
Perhaps too late but as you asked I should have said. I would try a wheel with a 32 ring on the cassette (on a stand) and if the current chain length is fine I'd use the existing chain method. If not (I suspect not) I'd use the big cog to big cog method- just because it is quicker and in any case measuring the centre of the 6800 chainring is tricky. If calculating instead I might look the length up instead of measuring it. |
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