If the shift-activation ratio is different between 10 and 11 spd, how is this 10 or 11spd RD possible?
https://www.bikester.co.uk/shimano-deore-rd-m4120-rear-derailleur-10-11-speed-M873039.html
Is it only road RD that 10 and 11 spd shift-activation ratio differs? That's not what Zinn said.
just get tanpan/jtek shiftmate
I need to buy a bigger RD anyway, so why would I spend another 30 quid on a Tanpan when I can just get a 9spd RD?
@amey started
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If the shift-activation ratio is different between 10 and 11 spd, how is this 10 or 11spd RD possible?
https://www.bikester.co.uk/shimano-deore-rd-m4120-rear-derailleur-10-11-speed-M873039.html
Is it only road RD that 10 and 11 spd shift-activation ratio differs? That's not what Zinn said.