Chain length..from 28T to 32T
Do you think I might get away with the same chain length if I switch my cassette from a 28T to a 32T..it'll be on a standard compact 50/34 if that makes any difference....
...and any is there any noticeable difference between 105 & Ultegra cassettes (11spd)?
TIA
...and any is there any noticeable difference between 105 & Ultegra cassettes (11spd)?
TIA
0
Comments
-
No noticeable difference between ultegra and 105 cassette.
Chain length perfectly fine. If you habitually cross the chain then derailleur will be a bit stretched but it will work fine.0 -
No noticeable difference between ultegra and 105 cassette.
True. A few grams, mainly in the lock ring and a slightly different coating - one is shinier than the other0 -
Do you think I might get away with the same chain length if I switch my cassette from a 28T to a 32T..it'll be on a standard compact 50/34 if that makes any difference....
TIA
It depends how long your chain is now.0 -
You may need to add a couple of links, you may also need to adjust the B tension screw otherwise when you shift into the 32T cog you may get overlap with the guide pulley and chain, do check that before you ride the bike.
Best to take the chain off then with the new cassette fitted make the adjustment to the B tension screw, then size the chain, set it up as in this Tech. Doc. DM-RD0003-06-ENF.pdf from this link http://si.shimano.com/#seriesList/180 -
32T cassette with compact chain set will require a medium cage rear derailleur me thinks. What's on there at the moment?WyndyMilla Massive Attack | Rourke 953 | Condor Italia 531 Pro | Boardman CX Pro | DT Swiss RR440 Tubeless Wheels
Find me on Strava0 -
Thanks for all your replies, I've ordered a 105.
Wasn't aware I might have to adjust the RD too, so thanks for that. And I do have a medium sized RD.0 -
32T cassette with compact chain set will require a medium cage rear derailleur me thinks. What's on there at the moment?
6800 Ultegra SS rear derailleur will take a 32T cassette, I don't think that it used to but the latest gen will.0 -
Shimano specs. say the max low sprocket for the 11sp RD-6800 SS is 28T and 32T for the GS model.
http://productinfo.shimano.com/#/spec/2.4/ROAD/Rear%20Derailleur
The previous model 10sp RD-6700-A SS will take a 30T max low sprocket. The OP says he has the GS model RD so will be fine.0 -
28t to 32t requires and extra inch or one full link of chain to be the right length assuming it was the right length before. I don't like incorrectly sized chains so I would change the chain.http://www.thecycleclinic.co.uk -wheel building and other stuff.0
-
Well I fitted it today, and maybe my chain was a tad too big to start but it works fine and doesn't look odd.
A quick turn of the magic screwdriver on the B screw and all is well.
Only thing I did notice was a) the original cassette was only on finger tight !.... and b) theres a little bit of play side-to-side in the new cassette on the freehub...and they were replaced like for like.0 -
Your freehub maybe on the way out or you need a very thin spacer on your freehub.http://www.thecycleclinic.co.uk -wheel building and other stuff.0
-
28t to 32t requires and extra inch or one full link of chain to be the right length assuming it was the right length before. I don't like incorrectly sized chains so I would change the chain.
It depends what you deem to be the "right length". If you size the chain so its as long as possible, with slight tension when on small-small, it will still be the "right" length and will work with both 28T and 32T cassettes (Assuming adequate rear derailleur capacity). This is exactly the reason I size my chains using small-small rather than big-big.WyndyMilla Massive Attack | Rourke 953 | Condor Italia 531 Pro | Boardman CX Pro | DT Swiss RR440 Tubeless Wheels
Find me on Strava0 -
Your freehub maybe on the way out or you need a very thin spacer on your freehub.
Shouldn't be wearing out as it's only got about 150 miles on it..and I didn't think it needed a spacer being 11 spd...there wasn't one when I took the old one off.0
