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dilemna
Joined: 22 Feb 2009
Posts: 720
Location: The Back of Beyond
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 Posted Sun Nov 8, 2009 11:51 pm |
I have Shimano 9 spd Ultegra transmission on my Trek road bike - a 6500 double chainset.
I would like to go to 10spd and have a new 10spd Ultegra cassette, second hand 10spd Ultegra STI levers which have signs of some wear but they still work fine allegedly.
My question is if I put the 10spd Ultegra cassette on the back, change to the 10 spd shifters, but still keep my 9 speed Ultegra 6500 double chainset with 9spd narrow HG 93 chain, will it run fine ie the 9 spd chain on the 10 spd Ultegra cassette or would it be better to use a Shimano 10 spd chain to match the cassette? Will the 10 spd chain run on the 9 spd chainset? Shimano say it is 9 speed but could it take a 10 speed chain? The 9 spd HG 93 chain is supposed to be narrow will it be narrow enough for a 10 spd cassette?
I really don't want to have to buy a new Ultegra 10 spd chainset as these are £££££££.
Oh and will an Ultegra 10 spd cassette fit on the rear hub (Bontrager Race) in place of the 9 spd without any problems or would I need a 10 speed hub?
I think the rear deraillieur is 9/10 spd compatible.
Any advice appreciated.
TIA.
Life is like a roll of toilet paper; long and useful, but always ends at the wrong moment. Anon.
Think how stupid the average person is.......
half of them are even more stupid than you first thought. |
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STEFANOS4784
Joined: 30 Jul 2008
Posts: 2594
Location: 'Down Norton'
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Simon Notley
Joined: 25 Apr 2005
Posts: 1096
Location: Bracknell
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Posted Mon Nov 9, 2009 11:20 am |
Everything should be fine if you switch to a ten speed chain. The nine speed chain won't fit properly on the cassette as it is too wide to fit between the sprockets. Nine speed chainset will be fine, derailleurs (front and rear) may run slightly sub-optimally but probably not noticeably.
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andy_wrx
Joined: 10 Jan 2006
Posts: 2091
Location: Cheshire - soft underbelly of the North
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Posted Mon Nov 9, 2009 12:40 pm |
Just the chain.
As long as you match shifters, cassette and chain, then the front & rear mechs, chainset and brakes don't care/know any better.
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Sigline added back for Nick :-
Because it comes from French, the event is called a 'sportive' (or cyclosportive);
- a 'sportif' is a competitor in one |
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ride_whenever
Joined: 17 Oct 2006
Posts: 8263
Location: United Kingdom
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Posted Mon Nov 9, 2009 12:44 pm |
and get a kmc chain rather than a shimano one.
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456!
silly little bike |
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dilemna
Joined: 22 Feb 2009
Posts: 720
Location: The Back of Beyond
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Posted Mon Nov 9, 2009 3:18 pm |
| Simon Notley wrote: | | Everything should be fine if you switch to a ten speed chain. The nine speed chain won't fit properly on the cassette as it is too wide to fit between the sprockets. Nine speed chainset will be fine, derailleurs (front and rear) may run slightly sub-optimally but probably not noticeably. |
Many thanks to all, especially Simon. So a 10 spd (Shimano Ultegra/HG93) chain will run ok on a supposedly Ultegra 9 spd chain set? Are the 9 spd rings narrow enough to accommodate the 10 spd chain or to put it another way is a Shimano 10 spd chain wide enough to go on 9 spd rings? My Ultegra chainset is one of the Octalink ones (not that makes any difference).
Life is like a roll of toilet paper; long and useful, but always ends at the wrong moment. Anon.
Think how stupid the average person is.......
half of them are even more stupid than you first thought. |
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John.T
Joined: 12 Nov 2004
Posts: 1745
Location: Harrogate. N. Yorkshire. UK
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andy_wrx
Joined: 10 Jan 2006
Posts: 2091
Location: Cheshire - soft underbelly of the North
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Posted Mon Nov 9, 2009 5:48 pm |
| John.T wrote: | | There is virtually no difference in the internal width of 9sp and 10sp chains. |
Agreed.
8sp, 9sp & 10sp chains are very nearly the same internal width.
The external width is different, but that's down to thinner sideplates and different rivetting - which is why 10sp chains are far less robust than 9sp, in-turn than 8sp.
Rest assured that if you're running a 9sp chainset with a 10sp chain that you won't have any issue where the teeth on the chainset are too fat to fit into the chain, nor that the chain is so thin that it falls down the gap between the rings...
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Sigline added back for Nick :-
Because it comes from French, the event is called a 'sportive' (or cyclosportive);
- a 'sportif' is a competitor in one |
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dilemna
Joined: 22 Feb 2009
Posts: 720
Location: The Back of Beyond
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