rushibhai

Hi all,

I will appreciate like some opinions.

I have a Sora double chainring on my wife's road bike with Tiagra front and rear shifters, 9-speed 11-25 cassette and an ultegra short cage rear derailer. Since she finds cranking a bit hard going uphill, we thought of putting a 11-32 rear cassette. The current RD doesn't work (rattles on the small 39T front and back 32T gears). I have determined the chain length as at Sheldon Brown's site.

So now I am thinking of putting on a long-cage Alivio RD from her old hybrid. Anything I should look out for? Living in India, quality replacement parts are tough to come by.

Thanks,
Rushi

dobber

If it works, it works. Can't go wrong trying.

rushibhai

Yeah. Well, will try then. Thanks.

Retro Grouch 

It'll work just fine. Road shifters with mountain bike rear derailleurs is actually a commonly used spec for tandems.

JiveTurkey

The Alivio rear derailleur is rated for a maximum cog size of 30T as opposed to 34T as on most of the other Shimano MTB RDs. But, you should be able to get away with a 32T cassette.

well biked

+1...touring bikes are often specced like this, too-

Retro Grouch 

My Quality book says 34 teeth for M410 but I don't know how old the OP's derailleur is.

JiveTurkey

I was just going off this: https://www.nashbar.com/profile.cfm?c...%20Derailleurs

It's an older model.

brucewiley

Used an Alivio RD for touring last year on a road bike with friction DT shifters, some mileage with a 11-32 and it doesn't like the 32 a lot but it works if you gotta have it. Ended up using a Suntour 12-30 8 spd Cogset for longer trips, one of the expensive models, $10. Still using it.

I think there are different models of the Alivio? All too confusing to my old brain.

rushibhai

Thanks for all the replies. I think I should be optimistic (too busy biking to look into this in the weekend). The old hybrid has a 'mega range' granny disc; looks like 32T. Will post how this worked out by end of this week.