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21 votes
10 answers
4k views

What would happen if I don’t replace worn drivetrain components?

What would happen if I took a entirely new drivetrain and just never replaced anything? Of course, I’d keep it clean and lubricated. With 11 and 12 speed chains being as expensive as they are, the old ...
MaplePanda's user avatar
  • 17.4k
19 votes
4 answers
14k views

Why do people use bigger cassettes for lower gearing when they could instead use smaller chainrings?

I want lower (sub 1:1) gearing on my next drivetrain but also a decent range, reasonable spacing between gears and still be reasonably light. While looking at different combinations of components, I ...
Ryan Witt's user avatar
  • 193
3 votes
3 answers
275 views

How long can I safely use a chain for?

My chain is well over the 0.75% extension at which I would normally replace it. However, the cassette and chainrings are also old enough that a new chain would slip on them, so they would also need ...
Will Vousden's user avatar
  • 4,043
3 votes
2 answers
140 views

Replaced chain, now the chain falls onto the small chaining

I rode for a little while longer then I should have with my old chain, so I replaced the old chain and cassette. But now when I ride in the big ring, the drivetrain makes a horrible sound and the ...
Chris's user avatar
  • 31
0 votes
1 answer
149 views

If I replace the cassette on my road bike, should I replace the whole drivetrain? [duplicate]

Relatively new to road cycling, have bought a 2nd hand bike and am thinking some parts of the drivetrain need replacing. Have tried to find this online and can't find any answers. Thanks!
Ashley Dark's user avatar
1 vote
0 answers
87 views

Will removing extra chainring mess with chain alignment? [closed]

I have a folding bike with 1x6 speed. I plan on making it a 1x9. I saw this crank set and cassette, 3x9 speed, for a fairly cheap amount and was thinking of getting them and installing on my bike. If ...
dork's user avatar
  • 837
10 votes
5 answers
25k views

How much distance can I put on drivetrain components?

I figure the jockey wheels on my derailer will last nearly forever, but what about the rest: cassette, chainrings, and chain? How many miles, kilometers, or furlongs do they normally last? I know ...
Drew Stephens's user avatar