Heavy duty thorn resistant tubes are a great way of avoiding punctures and flats from thorns and thistles. This all new Positz Thorn Resistant Bike Tubes 20″ is ideal for a replacement or spare – you never know when you’re going to need one! The tube is suitable for 20″ tyres with a width of 1.75″ to 2.125″ and has a schrader valve.

These Positz tubes are made from one of the biggest tube factories in the world, responsible for many of the big brands including Michelin.  This essentially means that no matter the tube brand, we’re all riding the same inner tubes! This is great for you because you’ll be getting a high quality tube at a super reduced price.

Positz tubes are compatible and therefore may be used in conjunction with any of the following brand name clincher tyres: Continental, Vittoria, Schwalbe, Maxxis, Kenda, Michelin, Hutchinson, IRC Tire, Mavic and many many more.

• Heavy duty thorn resistant tubes are a great way of avoiding punctures and flats from thorns and thistles
• Ideal for a replacement or spare – you never know when you’re going to need one!
• Valve: Standard schrader valve (sometimes also known as a ‘car valve’, or simply ‘A/V’); 35mm length
• Price is for 2 tubes
• Weight per tube (approx): 320g

Fits all of the following size tyres:

• 20 x 1.75 (44-406)
• 20 x 1.85 (47-406)
• 20 x 1.90 (47-406)
• 20 x 2.00 (54-428)
• 20 x 2.10 (54-406)
• 20 x 2.125 (57-406)