Would a 10 speed rear derailleur work on a 7 speed cassette?
08-07-18, 03:05 AM
#1
Newbie
Thread Starter
Join Date: Jul 2018
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Would a 10 speed rear derailleur work on a 7 speed cassette?
its only a temporary solution until my groupset comes next week, i have a 10s tiagra rear derailleur hanging around tho, would that work on my 7s cassette, 7s tourney sti?
08-07-18, 07:08 AM
#4
Senior Member
Join Date: Jun 2002
Location: Montreal, Quebec
Posts: 5,923
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1818 Post(s)
Liked 1,693 Times
in
974 Posts
Which version of Tiagra 10 speed derailleur? Do you have an indexed shifter? A Tiagra 4700 derailleur will not work with a 7 speed indexed shifter. A Tiagra 4600 will. If you have a friction shifter, either will work
08-07-18, 08:16 AM
#6
Senior Member
A 10sp dérailleur might not fit the wider 7sp chain.
This site: https://en.wikibooks.org/wiki/Bicycl...ing_Dimensions implies that Shimano derailleurs all have the same motion ratio. If that is true, the index clicks ought to work, but I'm not a Shimano expert.
This site: https://en.wikibooks.org/wiki/Bicycl...ing_Dimensions implies that Shimano derailleurs all have the same motion ratio. If that is true, the index clicks ought to work, but I'm not a Shimano expert.
08-07-18, 08:40 AM
#7
Banned
The rear derailleur moves continuously in (cable pull) and out (return spring)
between the stroke limit screw settings [high normal type]
"speeds" is the number count of the stack of cogs on the rear wheel..
between the stroke limit screw settings [high normal type]
"speeds" is the number count of the stack of cogs on the rear wheel..
08-07-18, 11:02 AM
#8
Newbie
Thread Starter
Join Date: Jul 2018
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
[QUOTE=Caliper;20492949]A 10sp dérailleur might not fit the wider 7sp chain.
It worked but theres alot of noise compared to the old 7s rd
It worked but theres alot of noise compared to the old 7s rd
08-07-18, 07:11 PM
#9
Sunshine
Join Date: Aug 2014
Location: Des Moines, IA
Posts: 16,608
Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo
Mentioned: 123 Post(s)
Tagged: 0 Thread(s)
Quoted: 10954 Post(s)
Liked 7,482 Times
in
4,184 Posts
08-08-18, 06:43 AM
#11
Senior Member
08-09-18, 01:53 PM
#12
Cycleway town
There are varying Shimano derailleur swing ratios, i cannot use my classy polished Tiagra derailleur with my 10sp XT shifter, because the XT is Dyna-Sys and the Tiagra is not. So i have to use the yobbo XT derailleur.
