I want to change my drivetrain on my bike and i found everything except the chainring. So I was wondering if I could choose any chainring. Thank for yours response.
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1Pretty much all modern bicycles use a chain with a half-inch spacing between links, so any chainring will match from that standpoint. However, there are 4 different common widths for the chain, and the chainring needs to match in width as well. bike.bikegremlin.com/3555/…– Daniel R HicksMar 20, 2020 at 23:49
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2The BCD and bolt count is important to match as well - a 4 bolt spider won't hold a 5 bolt chainring, and there are at least 3 patterns of 4 bolts. Plus a bunch of different diameters.– Criggie ♦Mar 21, 2020 at 0:08
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You also have to look out for narrow-wide chainrings, which aren't compatible with front derailleurs.– RLHMar 21, 2020 at 2:14
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1 Answer
No.
The chainring needs to be compatible with the rest of the drivetrain.
Chainring pitch (width + spacing) gets tighter with increased cogs on the rear wheel. So a 9 speed chainring is not compatible with an 11 speed drivetrain. Additionally there are new narrow-wide chainrings for single chainring setups will not work well in a system with a front derailleur.