Oct 10, 2003 7:22 AM
|I picked up a new wheelset (Mavic Cosmos) and can't seem to get my cassette (Shimano, 9-speed) on securely. I can full tighten the cassette, but there's play on the freewheel. The wheelset came with a spacer that I assume is for an 8-speed cassette (too big for my 9-speed). Any thoughts or tricks? Thanks in advance. S|
|I just got the same set and it was 8 speed||lotterypick|
Oct 10, 2003 7:27 AM
|Hum. I just got a pair of used Mavic Cosmic Experts and they were with an 8 speed cassette.
I did the same as you which is to put on the cassette and taking off the spacer, because my 9 speed wouldn't fit with it on.
I've ridden it on a few long rides and it's working fine.
When I put it on it fit just right, so I've got no ideas besides I cleaned my cassette and then maybe tightened the locking thingie down tighter.
My book said it should make a clicking like noise as it's getting torqued so I just tightened it until it stopped and the thing spun well and shifted well. Good luck.
|re: Loose cassette||MR_GRUMPY|
Oct 10, 2003 7:42 AM
|The spacer is for Shimano 8 and 9 speed cassettes. (They are the same width) The only time that you don't use it, is when you use the Mavic CC9 cassstte.|
Oct 10, 2003 8:15 AM
|Thanks! Gotta go throw that thing on I guess. Bummer that I've got almost 100 miles on it with the cassette not properly installed! Hopefully I didn't screw anything up too much. It actually shifted fine. But was making a racket over bumps. That's when I pushed on it and noticed there was play. Thanks again! S|
Oct 10, 2003 9:29 AM
|I'm not using the Mavic cassette, but a Dura Ace one and if I left the spacer in it wouldn't fit.
Meaning, I took it out and it seemed to fit and work great.
I'm a little concerned now, I'll take it to the shop to be sure.
Strange because it fits great and works without error. Hummm.
|Per Mavic Tech Tips...||TFerguson|
Oct 10, 2003 9:47 AM
|On Cosmos, Cosmic Elite :
Compatibility with 9 speed HG derailleur
- It is necessary to leave the positionning wedge delivered with the wheel on the freewheel body.
- Then mount a Shimano 9 speed cassette.
|Thanks. I will definately check it out. nm.||lotterypick|
Oct 10, 2003 9:58 AM
|Very strange........I don't understand why ...............nm||MR_GRUMPY|
Oct 10, 2003 11:13 AM
|Just got back from a ride||lotterypick|
Oct 10, 2003 12:14 PM
|There was no problem with it.
Now maybe I just don't know the definition of the spacer.
When I took off the old 8 speed. There was a ring about a quarter inch thick at the end.
I took off the 8 speed and put on part of the 9 but the whole thing wouldn't go on.
I took off the ringwhich is maybe the size of a quarter and then put on the 9 speed and it fit perfect.
It shifted fine and as I said has worked great.
I'll take it to a shop to be sure, after I ride home. Maybe I'll find that the spacer you speak of is something different. Or maybe there is a space inside the cassette where the spacer fits into (I didn't check for that).
Let me know what you think. I'm concerned and puzzled.
Oct 10, 2003 12:44 PM
|The overall thickness of Shimano 8 and 9 speed cassette is the same. The spacer slides onto the cassette body before you slide on the cassette. It's about 2-3mm thick, so you should have that much "slop" in your cassette. I've got a Cosmos, and I had to use the spacer w/ 9 speed.|
|Now I'm worried||lotterypick|
Oct 10, 2003 1:02 PM
|Again it works, but I did notice that when I screwed in the skewer that i had to screw it far.
I've shifted a bunch of times through the range and no problem, but still I'll check it.
I've never looked but there is a 2-3 cm gap between the end of the cassette and the drop out on the highest gear side (smallest gear). Is that actually supposed to be flush.
I can't figure out why it shifts correctly if it's moved over too much. I'll try the spacer tonight when I get home.
THanks, I'll let you know how it goes. Thankfully I use my other wheelset when I'm on the group ride since it's right for sure. I think (ha ha ha)