Bike Forums - View Single Post - Shimano Tourney to Shimano Deore XT?

08-10-19 | 12:41 PM

#4

Bill Kapaun

Really Old Senior Member

Joined: Feb 2007

Posts: 14,610

Likes: 1,861

From: Mid Willamette Valley, Orygun

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds. 2019 Giant Explore E+3

IF your chain is sized too long, it'll have less tension.
Shift to BIG:BIG and do the test in the pic.
IF you have more than 2 link SETS, your chain can be shortened.

A Tourney RDER & 7 speed "should" be nearly bullet proof until it wears out.
A RDER for a 9 speed is going to have a narrower cage and be a bit more finicky with the wider 7 speed chain.
I wouldn't "upgrade" beyond an 8 speed RDER for a 7 speed bike.

Last edited by Bill Kapaun; 08-10-19 at 12:45 PM.

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