Cycle Tyres & Tubes
Find your inner tube
Choose your wheel size, then select the valve and tyre-width range you need.
14 inch
16 inch
18 inch
27.5 inch / 650B
29 inch
700C / 28 inch
Check the tyre sidewall: match the full size marking, ideally the ETRTO code such as 47-305. The first number is tyre width; the second is wheel bead-seat diameter in millimetres. Wheel size alone does not confirm a fit.
Valve guide: Schrader (AV) is the wider car-type valve; Presta (SV) is the slim valve with a small screw at the tip. Check valve length too. Product pages show current availability. Need help? Contact or visit Outdoors Ramsey.
Shop bicycle tyres and inner tubes at Outdoors Ramsey, Isle of Man. Use the size guide above to find a replacement tube or a spare, then check the product details against your tyre and rim.
