Retro thumbie with 9 or 10 speed

The History Man · Mar 31, 2017

Evening all.

Will a Deore 7 thumbie travel enough to move a 9 or 8 mech/cassette? Obviously no indexing.

Considering my options for my ratty retro overburys build.

Thanks thm

Mind how you go.

legrandefromage · Mar 31, 2017

It will index to 8 and as 9spd is the same width...

The History Man · Mar 31, 2017

And 10? These were yours my friend.

The Friday vodka has my vouce.

legrandefromage · Apr 1, 2017

10 is the same width as nine. Problem is the cogs are very close and over/under shifting will be commonplace unless you are very accurate.

gil_m · Apr 3, 2017

Re:

I've been running XT thumbies on most of my bikes, everything from 7-11spd cassettes

Use a 9spd rear mech, 10spd chain, friction mode an the world is your oyster

In fact the more cogs in there the more accurate the shift, I love it, up and down the block with one simple movement

Procrates · May 10, 2017

Re:

What about these

https://paulcomp.com/shop/components/shimanothumbies/

You convert TT barend shifters to thumbies

catf · May 10, 2017

Re:

the cassette body is the same width for 8s and above, so teh cassette width has to be the same, friction mode should cover everything. but is it really worth giving up indexing for an extra couple of ratios? i dont think i could even find teh extra cogs without indexing

Raging_Bulls · May 12, 2017

Re:

Procrates":1zfoe34l said:
What about these

https://paulcomp.com/shop/components/shimanothumbies/

You convert TT barend shifters to thumbies

Having owned a set of modern thumbies, I can tell you that there is a huge difference in pull ratio between road and MTB thumbies/mechs. Those bar-end thumbies are meant for road mechs. Put them on an MTB mech and you'll struggle to cover 3/4 of the cassette, never mind that the indexing will be off completely.
For a road bike it's a good solution, for an MTB less so.

The History Man · May 12, 2017

Re: Re:

catf":34m3zrcx said:
the cassette body is the same width for 8s and above, so teh cassette width has to be the same, friction mode should cover everything. but is it really worth giving up indexing for an extra couple of ratios? i dont think i could even find teh extra cogs without indexing

I have a lot of 9 speed doing nothing. Went all Deore 3x9 and flat bar in the end. Thanks for all the advice though.

Retro thumbie with 9 or 10 speed

The History Man

legrandefromage

The History Man

legrandefromage

gil_m

Procrates

Retro Newbie

catf

Retro Guru

Raging_Bulls

Sbike Fan

The History Man

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