Bike 27.5″ Tyres – Just as a 700C wheel is the same diameter as a 29” (29er) wheel, 650B shares the exact same rim diameter as 27.5”. … 27.5”/650B rims have a bead seat diameter of 584mm, and 29”/700C rims have a bead seat diameter of 622mm.

Bike tyres are essential for cycling and most bikes need inner tubes too. A new bike tyre can transform the way your bike rides and even reduce the chances of getting a puncture. Mountain bike tyres are available for different wheel sizes, so there are 27.5” (650b) tyres and 29” tyres. Road bike tyres like the Continental Gatorskin are 700c. When buying bike inner tubes, you need to match the bicycle tyres size. A 27.5” tyre needs a 27.5” inner tube.

As well as road and MTB tyres we stock tyres for hybrid bikes and turbo trainer tyres as well as kids bike tyres for all wheel sizes. Continental bike tyres are very popular, and we also stock tyres from all the other big brands like Maxxis and Schwalbe. Tubeless tyres are popular on both road and mountain bikes. Used with tubeless sealant they can self-heal small punctures, so you don’t get a flat.