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8 speed is going out of fashion, so it can be tough to find parts for it.
-Converting to 9 speed is relatively simple. You need three parts: a new chain, new cassette, and new shifters. The derailer is cross-compatible. It's not too hard to do the swap, but there are some special tools that a local bike shop would have. It's a reasonable option, and will make finding new parts in the future easier.
-You could also convert it to 8 speed thumbies. A set of road bike bar end shifters mounted to Paul's Mountain thumby perches would be a great, albeit expensive setup.They're durable as hell. If you can find older thumbies, those work great too (I'm running a set of 20 yr old 5-speed Deore shifters on my 8 speed Kona).
Ideally, I would take the bike into a bike shop. It'll be much more helpful than a bunch of people from the internet.
8 speed is going out of fashion, so it can be tough to find parts for it.
-Converting to 9 speed is relatively simple. You need three parts: a new chain, new cassette, and new shifters. The derailer is cross-compatible. It's not too hard to do the swap, but there are some special tools that a local bike shop would have. It's a reasonable option, and will make finding new parts in the future easier.
-You could also convert it to 8 speed thumbies. A set of road bike bar end shifters mounted to Paul's Mountain thumby perches would be a great, albeit expensive setup.They're durable as hell. If you can find older thumbies, those work great too (I'm running a set of 20 yr old 5-speed Deore shifters on my 8 speed Kona).
Ideally, I would take the bike into a bike shop. It'll be much more helpful than a bunch of people from the internet.