It will go into the 9th cog but the chain is no longer engaging with the cog in the RD at this point. It will go into the 10th cog if I hold the shifter as far as it will go (suppose it needs more tension) but still it’s not engaging with the teeth in the top cog of the RD.
Thanks, that has worked! It’s making a bit of noise in the top cog but its shifting through all gears. That will do for now and I need to get on with other stuff.
Thanks everyone who’s helped, feeling a lot less stressed now.
It will go into the 9th cog but the chain is no longer engaging with the cog in the RD at this point. It will go into the 10th cog if I hold the shifter as far as it will go (suppose it needs more tension) but still it’s not engaging with the teeth in the top cog of the RD.