New answers tagged chain
I had my master link fail on the weekend. It had been reused 5 times, and separated itself from the rest of the chain at the base of a 4k climb. Will be replacing it each time from now on. I was lucky that the chain didn't go through the spokes, damage the bike or go under the wheel and cause a pile up.
The cassette looks worn to me. The best indicator that a cassette is worn is that the teeth are asymmetrical. Check out Sheldon Brown's site for a detailed discussion about chain stretch and sprocket wear. There's no magic ratio that if a chain is worn x amount, the cassette will be worn too. There are too many factors involved, the material that the ...
The easiest way to tell is simply to install the new chain on the cassette. If the cassette is worn from the old chain, it will skip when you apply a decent amount of pressure (standing up will usually do this in your big ring and half way down your cassette). If it does jump, you'll need a new cassette. It's really as simple as that. I would be surprised ...
One note is that the gearing is different, assuming they're still stock. The Specialized Langster London has a 42t chainring and 16t cog, the 2013 Langster has a 48t chanring and 17t cog. With 700x25 tires that means they are 69.6 and 74.6 gear inches respectively. What that means is that spinning at 100rpm, you're going ~22mph on the Langster and only ...
To me, the smallest cog looks worn and the 2-3 only a little. This could be a nice way/moment to teach yourself to ride in high cadence (by avoiding those gears, which you have been obviously abusing)!
The difference between 23c and 25c will be pretty much imperceptible (there's some argument that wider tires at the same pressure are faster up to a point anyway). You will notice more of a difference between correctly inflated tires and underinflated tires, but even that shouldn't be enough to make the bike feel sluggish unless they're extremely and ...
The description is of the chain width. There's quite a lot of history, but the short answer is "they make chains narrower to fit more gears in". In order to fit more rear sprockets in without making the rear wheel ludicrously wide manufacturers have crammed them closer together. To make that work they've made the chain narrower, limited mostly by material ...
@Alexander is right, there is no need to break a chain when you replace a bottom bracket. So your hypothesis doesn't make complete sense, unless maybe they were doing other stuff to the bike? So if you do take the bike back to the shop, odds are that that's their response. I know if I got myself a new (second-hand) bike, I'd think about replacing the chain ...
There is no need to detach the chain to change BB. I don't believe that the shop will give you warranty in this case. Therefor the answer question 1 is no. There is no need to replace the whole chain. Usually replace of only 2-4 links will solve the problem.
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