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Deore GS or SGS for 11-36 with 50/34 on Gravel Bike

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Deore GS or SGS for 11-36 with 50/34 on Gravel Bike

Old 09-01-17, 07:49 AM
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Schadenfreuder
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Deore GS or SGS for 11-36 with 50/34 on Gravel Bike

Hi
I have a Cannondale Slate 105 which I’m looking to change out the gearing on.
My local rides often involve lots of hills with pavement/tarmac, gravel, cobble / rubble to near-singletrack moorland.
I’ve long since swapped out the 52/36 chainrings for 50/34 but I’m now considering changing out the rear mech and cassette. Ideally I’d like to swap for a Shimano Deore M8000 (with Wolf Components Tanpan cable pull converter) rear mech with either a 11-34 or 11-36 cassette (before anyone asks I’d like a clutched mech not GS road mech mainly to stop losing the chain on rougher ground)
What I’m querying here is whether or not I need to get a M8000 GS or SGS mech.
Shimano states that the GS only has a “front difference” of 10T which I could understand if you were using 11-44 or 11-42 cassette. But I would’ve thought for the 11-34 or 11-36 cassette size (with 50/34 chainrings) I’m looking to use I shouldn’t need to use a (bigger and heavy) SGS mech which Shimano states as having “front difference” of 18 teeth???
Anyone got any experience or feedback on similar set ups?
Would be really appreciated!
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Old 09-01-17, 07:56 AM
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wgscott
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I'm using an 11-36T SRAM cassette with an otherwise ultegra setup, just by cranking on the B-screw. It might be worth trying that kind of approach first, before doing anything more drastic (and costly). I ride gravel (and worse) with this and never lose the chain -- I would check your FD adjustment.
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