You got gears at the front too?
I'll check the screw tomorrow, but have only single ring at front which is a smallish 38 so can't go anywhere with that.
Was more to check you'd have capacity, but that will be fine with the single ring up front, if the b screw let's you move the mech out another cm ish then you should be fine with a 34.
@efb started
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You got gears at the front too?