Is it possible? I'm sure I remember hearing that you could make a 9/10 speed compatible wheel accept an 11 speed cassette with a bit of judicious dremel work. Or am I wrong?
Basically I have sora 9 speed on my roadie with a nice rs80 c24 wheelset on it. I'd like to upgrade the groupset but since 105 is now 11 speed and tiagra hardly seems worth the spend I'm stuck, I don't really want to buy a new wheelset yet...
Yep, you can - as you suggest you need to take 1mm of the stops on the splines of the freehub body.
Easy job or delicate mission?
No idea! Trying to remember where I read the guide. BikeRumor perhaps...
Don't bother. Just remove the 11 tooth cog (come on, you won't use it often anyway) and then configure the mech and cable tension to only shift the remaining ten sprocket.s
http://darkspeedworks.com/blog.htm
Aha, hadn't thought of that!
This looks more difficult!!
http://benmanson.com/review/7900_to_11/7900_to_11.htm
This guy in Germany seems to do a line in the required mod from what I can translate....
http://www.ebay.co.uk/itm/311288135900?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
I run 6800 as a ten speed by just taking out one of the cogs.
Saying that I wondered whether I could just file down the free wheel body a bit.
I thought I'd draw a 1 mm line with a sharpie on each stop and just file it or Dremel it off.
Cheers!
Might pop into my lbs tomorrow and see if they've done it for anyone
There should be an easier way than either of those. If you can live without the 11t then just swap the 11 and 12t for a 12t lockring sprocket off a cheap (even as cheap as claris) cassette. Spacing wont matter as in the top gear the mech rests on the limit stop so as long as its adjusted correctly it'll index.