thanks - a day of research suggests 30T would be ok on a short cage + extra links (or new chain) so i think i'll try that and see , if all else fails then i can sell on my brand new chain/cassette and short cage rear and buy a new mech....
thanks pascalo - im going for the b screw bodge first + longer chain - lets see where that gets me, will be delivered tomorrow, so will be performing the operation tomorrow.
thanks - a day of research suggests 30T would be ok on a short cage + extra links (or new chain) so i think i'll try that and see , if all else fails then i can sell on my brand new chain/cassette and short cage rear and buy a new mech....