goody
Veteran
- Location
- Carshalton
I've done it both ways and have no preference but I think the theory of valve last is that you can push the tyre bead down into the well of the rim all the way around without the valve getting in the way, you can also use the valve to push the tube well into the tyre to avoid catching the tube with the levers for the last bit on tight tyres. I have changed a lot of motocross and enduro tyres where a bit more effort is required.