Medium or short cage Deore derailleur?

DroidOne

Pedelecer
Aug 12, 2016
48
9
66
Stockholm (Sweden)
Bike: https://www.cannondale.com/USA/bike/Productdetail?Id=546e4e19-b395-4f47-85e9-b4a2de4349e0

My Shimano long cage "Deore M6000 Shadow+" derailleur got stolen today. There's a first time for everything I guess :)

I need to replace it, but since I've changed cassette from 11-44T -> 11-32T and front sprocket from 38T->46T I'm thinking about switching from a long cage to a medium or a short cage derailleur.

What would you recommend? I pretty much use it as a road bike/for communiting, mostly on asphalt.

Option A (medium cage): https://www.wiggle.co.uk/shimano-deore-m6000-direct-mount-10sp-rear-mech/
Option B (cheap short cage): https://www.wiggle.co.uk/shimano-zee-m640-shadow-10-speed-rear-derailleur/
Option C: (expensive short cage): https://www.wiggle.co.uk/shimano-saint-m820-shadow-plus-rear-derailleur/

I believe that option B and C should fit with my 11-32T CS-HG500 cassette and Deore Trekking SL-T6000 10 speed shifter, but not entirely sure.
 
Last edited:

soundwave

Esteemed Pedelecer
May 23, 2015
11,086
4,591
as long as the mech matches the cassette speed it should work but how the fook the they remove it in the first place pmsl. :rolleyes:
 

soundwave

Esteemed Pedelecer
May 23, 2015
11,086
4,591
b and c look like there for race bikes so might cause problems with the cassette you have so best option is a.

some group sets will also only work right with the right compatible chains and wont work with say a 10spd mtb cassette even tho there the same speed.

it is the size of the gear range of the cassettes sprockets so on a race bike there more closer together size wise so you can run a short cage mech as the cassette is smaller width wise why you also need the right chain to work with what you have.
 
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DroidOne

Pedelecer
Aug 12, 2016
48
9
66
Stockholm (Sweden)
b and c look like there for race bikes so might cause problems with the cassette you have so best option is a.

some group sets will also only work right with the right compatible chains and wont work with say a 10spd mtb cassette even tho there the same speed.

it is the size of the gear range of the cassettes sprockets so on a race bike there more closer together size wise so you can run a short cage mech as the cassette is smaller width wise why you also need the right chain to work with what you have.
Thanks. I will probably go ahead with the medium one, as it seems hard to find a compatible short cage (not sure if there even are any that will fit).
 

Fat Rat

Esteemed Pedelecer
Jun 7, 2018
1,890
717
UK
I would go medium
You have to much gearing for a short cage

I have to say I've never heard of a rear mech getting stolen
First for everything I suppose
 
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