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RSX Rear Hub Moron(6 posts)

RSX Rear Hub Moronfunknuggets
Mar 29, 2002 11:03 AM
I apologize to all about this mundane question, but can a 7-speed RSX hub be fitted with an 8speed cassette? Im guessing no, but I just wanted to check. I have two bikes, one 8sp and one 7sp and was wanting to use the 7sp wheel as a trainer...with a new 8sp cassette if possible. Thanks in advance!

Somebody just answered this...cory
Mar 29, 2002 11:47 AM
...and I read it, because I still have an RSX 7-speed, too. But I forget what he said. That premature Alzheimer's is murder...
Like you, though, I think the answer was No.
Somebody just answered this...funknuggets
Mar 29, 2002 11:55 AM
Well, Alzheimer's or not, I was waiting for someone to post what I WANTED to hear, not what was necessarily true... what my wife calls selective hearing... or reading in this case. Thanks anyway
Try it and seelaffeaux
Mar 29, 2002 12:41 PM
I think there might have been a couple of verions of RSX. Up until recently I had a full 7 speed RSX set-up. The rear spacing was 130mm and it accepted an 8 speed casette with no problems. I tried to make the 8 speed work with the 7 speed shifters, and although it fit fine, I couldn't make it shift correctly.

Give it a try and see.
No, No, No, No. (No message)Alexx
Mar 29, 2002 3:08 PM
Sure you can.Spoke Wrench
Mar 30, 2002 7:48 AM
The first thing to check is the OLD over lucknut dimension. 8&9 speeds are 130mm, 7 speeds may be only 126mm. If your's is a 126, you will need a longer 8 speed axle set.

Take out the axle and remove the 7 speed freehub body with a 10mm allen wrench. Install the 8 speed freehubbody and replace the axle. If you're reusing the old axle, you will have to fiddle with the axle spacers.

Redish the rim. I seem to remember it takes about a half turn on every spoke.