I suspect so. I'm kinda of the thinking that if you can't get up it on 34/28 you aren't going to do it on 34/32 either, and walking would be quicker.
There's a significantly noticeable difference between 32 and 28, however you make do with what you have, the girlfriend rode up a 7% average 15km climb on a 36/25 before and managed just fine.
I'll chuck the dinner plate, a new chain and the XO mech in the car anyway, in case.
@edscoble started
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I suspect so. I'm kinda of the thinking that if you can't get up it on 34/28 you aren't going to do it on 34/32 either, and walking would be quicker.