I am very confused with tyre sizes.
My SD has 27.5 x 2.40 (62x584) Super moto x tyres. Schwalbe make so many tyres, but, very few in that size. However, can I change tyre sizes on my wheels. I obviously have to stick with the 27.5 element, but, can I go higher and/or lower than the 2.40? My...