I recently upgraded my wheelset to a pair of Mavic Cosmic Carbone SLs from Mavic Aksium Race wheels, and transferred my Shimano Ultegra 10-speed cassette. While removing the cassette from the Aksiums, I noticed 2 spacers beneath it, and transferred both to the new hub of my Carbone SLs. Everything seems to fit fine, and I've tested my shifting on a bike stand, but not ridden outside yet due to weather. The new wheelset came with only one spacer - which was the exact same size as one (of two) residing on the older wheelset hub.
My questions pertain to the second, thinner spacer found on the older wheelset hub. (See attached pic) I tried to do some research, and am asking others with experience to confirm and/or clarify what I've been reading.
As I understand it, the first thicker spacer is proprietary to Mavic, and lends the M10 hub additional compatibility with Campagnolo cassettes as well as Shimano. For it to mate with 8 or 9-speed Shimano cassettes correctly, the 2mm (?) thick spacer ring becomes necessary as these cassettes are slightly narrower than their Campagnolo counterparts.
The 10-speed Shimano cassettes are slightly narrower still, and require an additional spacer of 1mm in thickness. I hope I'm getting it right, but please feel free to correct me…I was searching informal postings on other bike forums, dating back at least 7 years. The sizing of these spacers is slightly confusing. Upon searching, I read that Mavic spacers can be "about 3mm" thick, which led me to think that perhaps in the past one thicker spacer was used, versus 2 smaller ones now (a 2mm Mavic + 1mm Shimano together).
Could anyone clear this up for me? I admit that my measuring technique was pretty rudimentary; using a cheap plastic ruler instead of calipers, so perhaps that is part of the problem.
My questions pertain to the second, thinner spacer found on the older wheelset hub. (See attached pic) I tried to do some research, and am asking others with experience to confirm and/or clarify what I've been reading.
As I understand it, the first thicker spacer is proprietary to Mavic, and lends the M10 hub additional compatibility with Campagnolo cassettes as well as Shimano. For it to mate with 8 or 9-speed Shimano cassettes correctly, the 2mm (?) thick spacer ring becomes necessary as these cassettes are slightly narrower than their Campagnolo counterparts.
The 10-speed Shimano cassettes are slightly narrower still, and require an additional spacer of 1mm in thickness. I hope I'm getting it right, but please feel free to correct me…I was searching informal postings on other bike forums, dating back at least 7 years. The sizing of these spacers is slightly confusing. Upon searching, I read that Mavic spacers can be "about 3mm" thick, which led me to think that perhaps in the past one thicker spacer was used, versus 2 smaller ones now (a 2mm Mavic + 1mm Shimano together).
Could anyone clear this up for me? I admit that my measuring technique was pretty rudimentary; using a cheap plastic ruler instead of calipers, so perhaps that is part of the problem.
