Michelin Heavy Duty Rear Inner Tube 2.50/2.75-10 2.50/275-10" TR4 Valve Fits Both Front Or Rear 10" Tyres  

Pirelli Standard Rear Inner Tube 90/100-14 Pirelli inner tubes are a good heavy duty inner tube. Available in a multitude of sizes.

Pirelli Standard Rear Inner Tube 80/100-12 Pirelli inner tubes are a good heavy duty inner tube. Available in a multitude of sizes.

Pirelli Standard Rear Inner Tube 110/90-19 Pirelli inner tubes are a good heavy duty inner tube. Available in a multitude of sizes.

Pirelli Standard Rear Inner Tube 90/100-16 Pirelli inner tubes are a good heavy duty inner tube. Available in a multitude of sizes.

Pirelli Standard Front Inner Tube 60/100-12 Pirelli inner tubes are a good heavy duty inner tube. Available in a multitude of sizes.