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8 speed to 9 speed

Old 01-16-06, 06:55 PM
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EJ123
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8 speed to 9 speed

If I change to that, will the 9 speed cassette be to wide to where I would have to change the hub perhaps? Or something else... other than the shifters.
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Old 01-16-06, 07:00 PM
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Hub is the same.
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Old 01-16-06, 07:24 PM
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wtf are you talking about?
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Old 01-16-06, 07:28 PM
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I hade the same question and called my lbs. They said I need a new shifter, derailer and cassett. Then the guy told me I don't really need 1 more speed, that I would never know the difference. Once I thought about it, he was right (just saved about $225).
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Old 01-16-06, 07:53 PM
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The hubs are the same, but you would have to change the chain, rear derraileur, and shifter, which you know.
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Old 01-16-06, 08:17 PM
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Originally Posted by nmn25
I hade the same question and called my lbs. They said I need a new shifter, derailer and cassett. Then the guy told me I don't really need 1 more speed, that I would never know the difference. Once I thought about it, he was right (just saved about $225).
+1000

i'm still 7-speed. 12-14-16-18-21-26-32 cassette, 49-40-28 crank. how many gears does one really need?
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Old 01-16-06, 08:37 PM
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Ok I probably wont change then
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Old 01-16-06, 08:41 PM
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Yeah, there is no need for 9, the high and low will still be the same, just closer ratios. Its a scam to get people to buy parts they don't need.
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Old 01-16-06, 10:11 PM
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8 speed derailleur will work on 9.
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Old 01-16-06, 10:24 PM
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to go from 8 to 9 you will need the following new parts:

- 9-speed cassette
- 9-speed rear shifter compatible with your existing derailleur
- 9-speed chain (narrower than 8-speed)

If you are already replacing worn out or broken parts and you REALLY want the extra cog, then go for it. That said, I'm also of the opinion that your $$ can be much better spent on parts other than those above if you are considering going from 8 to 9 speeds just because. Keep the parts you have and if you find yourself wanting a gear higher than one and lower than another, shift into the higher one and push a bit harder.
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Old 01-17-06, 12:43 AM
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Originally Posted by nmn25
I hade the same question and called my lbs. They said I need a new shifter, derailer and cassett. Then the guy told me I don't really need 1 more speed, that I would never know the difference. Once I thought about it, he was right (just saved about $225).
A new derailleur is only necessary if you're switch actuation type (rapid rise or SRAM 1:1).
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Old 01-17-06, 12:45 AM
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Originally Posted by mcoine
Yeah, there is no need for 9, the high and low will still be the same, just closer ratios. Its a scam to get people to buy parts they don't need.
For some reason, they don't like making 12-34, 11-34 cassettes in 8 speed. They only make those "Mega-Range" cassettes. I'm not sure if it's a shifting interval thing or just marketing.

I'm sticking with 8 speed. But if I build a new bike, it will be nine speed.
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Old 01-17-06, 12:55 AM
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The main reason I upgraded was due to the fact that I had hand-me-down parts left over from bumping up the component spec on my trailbike
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