I'm based in the UK and have bought some new handlebars that are 31.8mm for a hybrid 8 gear bike.
My old handlebars were smaller in diameter so my old gear shifter won't fit. No gear shifters online actually say the diameter of the handlebars they're made for. Is there a standard diameter for mountain bikes and road bikes? Can someone link me to an example 8 gear shifter that will fit 31.8mm handlebar?
Any help really appreciated.