Difference in XT RD-M780 & T780

Matt631

Hey Everyone,

Can anyone tell me what the difference between the Shimano Deore XT RD-M780 Shadow 10-speed is and the Shimano Deore XT RD-T780 Shadow 10-speed. Other than one is *designed* for touring>?

I currently have a bike which has the

Shimano Deore XT Front dérailleur M780 Top Swing, 34.9mm, 10-speed
CRANK Shimano FC-M552 2-Piece 42x32x24T, 175mm, integrated BB, 3x10 speed

and Im replacing it with ( to get the higher gearing)

Shimano Deore XT FD-T780 Top Swing, 34.9mm, 10-speed
Shimano Deore XT FC-T781 Hollowtech II 48x36x26T., 175mm, integrated BB

Can I leave the rear dérailleur "Shimano Deore XT RD-M780 Shadow 10-speed" alone with this new setup or should I also replace it "Shimano Deore XT RD-T780 Shadow 10-speed"

Is there a quality difference in the two components?

Thanks
Matt

nicklouse

have you changed the cassette?

Matt631

I thought about it but I'm not sure weather I would need to.

Is it a case of if I don't change the cassette then no need to change the rear dérailleur?

The bike I have is a Cube LTD race 2012 (I'm struggling to find anything out about the rear cassette to know if its compatible with my new choices)

nicklouse

keep the one you have and buy an new chain.

Matt631

nicklouse wrote:

keep the one you have and buy an new chain.

A new chain because of the length?

nicklouse

yes your old one will be too short now.

Matt631

Thanks very much for your help... Ill report back one day with my findings. :-)

Jamieg285

Nothing to add, but interested in the outcome (don't know how to subscribe without posting).

I have Cube Ltd Pro 29 with the same setup, and am interested in knowing what upgrade options I might have in the future.