Can I mix and match a group set?

[JoeWakefield03]

Hi, I’m currently in need of a new derailleur and shifter. I was wondering whether I could mix a 9spd Shimano Deore derailleur with a 9spd shimano Altus shifter?

 

[DCBassman]

Yes
Edit:Apologies, wasn't meant to seem so curt!

 

[mcshroom]

Yes.

Shimano MTB stuff all works together up to 9sp. They changed things for 10sp so a 10sp Deore wouldn't work

 

[Rowano]

Yes

 

[Andy in Germany]

Yes.

Shimano MTB stuff all works together up to 9sp. They changed things for 10sp so a 10sp Deore wouldn't work

Up to 9 sp?

I thought 7-8 speed worked, but 9 was a different spacing?

 

[Heltor Chasca]

Mix?

Do none of you have any OCD tendencies?

Good god.

 

[DCBassman]

Mix?

Do none of you have any OCD tendencies?

Good god.

I can hear the vibrating horror from here!

 

[DCBassman]

OTOH, I don t think i could mix up the visuals. The black front and silver rear wheels on the Trek bothers me a bit...

 

[mcshroom]

Up to 9 sp?

I thought 7-8 speed worked, but 9 was a different spacing?

That's true for chains/cassettes. The shifters and derailleurs share a common cable pull up to 9sp though.

 

[Andy in Germany]

That's true for chains/cassettes. The shifters and derailleurs share a common cable pull up to 9sp though.

So I can use a 9sp shifter on an eight speed cassette? Indexed as well?

 

[Blue Hills]

Yes.

Shimano MTB stuff all works together up to 9sp.k

Yes, great isn't it and of course can be used on more than MTBs.
Meanwhile in other bits of the forum folk fret and fret.
Long live 9 speed.

 

[mcshroom]

So I can use a 9sp shifter on an eight speed cassette? Indexed as well?

No. The indexing is speed specific (at the shifter).

An 8sp shifter pulls a set amount of cable to move a shift. A 9sp will move a different amount of cable.


However, the derailleur isn't indexed. All the way up to 9sp, the distance a derailleur moves per unit of cable movement is identical. At 10sp, Shimano changed the distance the derailleur moves per unit of cable Movement, so you cannot use a 10sp MTB derailleur with a 9sp indexed shifter (nor the other way round)

 

[ChrisEyles]

That's interesting, I didn't know 10 speed derailleurs moved a different distance for a given amount of cable pull. Is that true for sram as well as shimano? If I ever venture past 8 speed I'll have to remember that, I am an inveterate mix & matcher!

 

[TheDoctor]

10 speed Shimano rear mechs have a different pull to road mechs.
Dunno about SRAM.

 

[freiston]

Shimano 8 speed pulls 2.8mm cable, 9 speed pulls 2.5 mm according to CUK (aka CTC) website:

Source: https://www.cyclinguk.org/cyclists-...sion-gears/derailleur-gears/shimergo#Shimergo