Mountain Bike Inner Tubes

MTB inner tubes are the part of the tyre that contains the air and is responsible for the pressure of the tyre. If you get a serious puncture, you might need to replace it so it can be a good idea to keep a spare on hand!
88 items
DECATHLON 700x23-32 Bike Inner Tube, 80mm Valve - Presta
DECATHLON 700x23-32 Bike Inner Tube, 80mm Valve - Presta
Rate: 4.3 stars, 880 votes
£3.99
DECATHLON 700x23/32 Bike Inner Tube, 60mm Valve - Presta
DECATHLON 700x23/32 Bike Inner Tube, 60mm Valve - Presta
Rate: 4.4 stars, 1950 votes
£3.99
DECATHLON 14" Inner Tube Section 1.5 to 1.9 - Bent Schrader Valve
DECATHLON 14" Inner Tube Section 1.5 to 1.9 - Bent Schrader Valve
Rate: 4.5 stars, 279 votes
£3.99
DECATHLON 650x18-25 Bike Inner Tube - Presta
DECATHLON 650x18-25 Bike Inner Tube - Presta
Rate: 4.4 stars, 138 votes
£3.99
DECATHLON 700x35-45 Bike Inner Tube - Presta
DECATHLON 700x35-45 Bike Inner Tube - Presta
Rate: 4.4 stars, 2841 votes
£3.99
DECATHLON 20" x 1.5 to 1.9 Schrader Valve Inner Tube
DECATHLON 20" x 1.5 to 1.9 Schrader Valve Inner Tube
Rate: 4.5 stars, 524 votes
£3.99
DECATHLON 29x1.9/2.5 Self-Repairing 48 mm Presta Valve Inner Tube
DECATHLON 29x1.9/2.5 Self-Repairing 48 mm Presta Valve Inner Tube
Rate: 4.3 stars, 534 votes
£7.99
DECATHLON 26x1.7-2.2 Bike Inner Tube - Schrader
DECATHLON 26x1.7-2.2 Bike Inner Tube - Schrader
Rate: 4.5 stars, 5018 votes
£3.99
DECATHLON 16 x 1.5/1.9 Self-Repairing Schrader Inner Tube
DECATHLON 16 x 1.5/1.9 Self-Repairing Schrader Inner Tube
Rate: 3.9 stars, 16 votes
£6.99
DECATHLON 27.5x1.9-2.5 Bike Inner Tube - Presta
DECATHLON 27.5x1.9-2.5 Bike Inner Tube - Presta
Rate: 4.4 stars, 1543 votes
£3.99
DECATHLON 26x1.2-1.5 Bike Inner Tube - Presta
DECATHLON 26x1.2-1.5 Bike Inner Tube - Presta
Rate: 4.2 stars, 589 votes
£3.99
DECATHLON 16" x 1.50 to 1.90 Schrader Valve Inner Tube
DECATHLON 16" x 1.50 to 1.90 Schrader Valve Inner Tube
Rate: 4.6 stars, 447 votes
£3.99
MICHELIN Mountain Bike Inner Tube Protek Max 27.5 x 2.45-3.00 Presta Valve
MICHELIN Mountain Bike Inner Tube Protek Max 27.5 x 2.45-3.00 Presta Valve
Rate: 4.7 stars, 17 votes
£9.99
DECATHLON 24x1.7-2.2 Self-sealing Bike Inner Tube - Schrader
DECATHLON 24x1.7-2.2 Self-sealing Bike Inner Tube - Schrader
Rate: 4.3 stars, 268 votes
£6.99
DECATHLON 20" 1.90 to 2.20 Schrader Valve Inner Tube
DECATHLON 20" 1.90 to 2.20 Schrader Valve Inner Tube
Rate: 4.6 stars, 543 votes
£3.99
DECATHLON 20x1.3/8 BMX Bike Inner Tube - Presta
DECATHLON 20x1.3/8 BMX Bike Inner Tube - Presta
Rate: 4.1 stars, 141 votes
£3.99
DECATHLON 27.5x1.9-2.5 Bike Inner Tube - Schrader
DECATHLON 27.5x1.9-2.5 Bike Inner Tube - Schrader
Rate: 4.5 stars, 3634 votes
£3.99
DECATHLON 20x1.7-2.2 Self-Sealing Bike Inner Tube - Schrader
DECATHLON 20x1.7-2.2 Self-Sealing Bike Inner Tube - Schrader
Rate: 4.3 stars, 348 votes
£6.99
DECATHLON 12" x 1.4 to 1.9 Bent Schrader Valve Inner Tube
DECATHLON 12" x 1.4 to 1.9 Bent Schrader Valve Inner Tube
Rate: 4.5 stars, 135 votes
£3.99
DECATHLON 26x1.7/2.2 Self-Repairing Schrader Inner Tube
DECATHLON 26x1.7/2.2 Self-Repairing Schrader Inner Tube
Rate: 4.5 stars, 448 votes
£7.99
DECATHLON 700x35 / 45 Self-Repairing Schrader Inner Tube
DECATHLON 700x35 / 45 Self-Repairing Schrader Inner Tube
Rate: 4.3 stars, 421 votes
£7.99
DECATHLON 24" x 1.9 to 2.2 Schrader Valve Inner Tube
DECATHLON 24" x 1.9 to 2.2 Schrader Valve Inner Tube
Rate: 4.6 stars, 696 votes
£3.99
DECATHLON Road Inner Tube 700x23-32 Presta 48 Light
DECATHLON Road Inner Tube 700x23-32 Presta 48 Light
Rate: 4.2 stars, 26 votes
£4.99
DECATHLON 26x1.7-2.2 Bike Inner Tube - Presta
DECATHLON 26x1.7-2.2 Bike Inner Tube - Presta
Rate: 4.4 stars, 1471 votes
£3.99
DECATHLON 27.5x2.5-3 Bike Inner Tube - Presta
DECATHLON 27.5x2.5-3 Bike Inner Tube - Presta
Rate: 4.5 stars, 393 votes
£3.99
DECATHLON 650x28-42 Bike Inner Tube - Presta
DECATHLON 650x28-42 Bike Inner Tube - Presta
Rate: 4.5 stars, 535 votes
£3.99
DECATHLON 27.5" x 1.90/2.50 Self-Sealing 48 mm Schrader Inner Tube
DECATHLON 27.5" x 1.90/2.50 Self-Sealing 48 mm Schrader Inner Tube
Rate: 4.5 stars, 349 votes
£7.99
DECATHLON 29 x 1.9/2.5 Inner Tube 48mm Schrader Valve
DECATHLON 29 x 1.9/2.5 Inner Tube 48mm Schrader Valve
Rate: 4.6 stars, 391 votes
£3.99
DECATHLON 27.5 x 1.6/1.9 Gravel Inner Tube - Presta Thread
DECATHLON 27.5 x 1.6/1.9 Gravel Inner Tube - Presta Thread
Rate: 4.6 stars, 24 votes
£3.99
DECATHLON Mountain Bike Inner Tube 29x1.9-2.5 Presta 48 Light
DECATHLON Mountain Bike Inner Tube 29x1.9-2.5 Presta 48 Light
Rate: 4.8 stars, 45 votes
£4.99
DECATHLON 26x1.7-2.2 Self-Sealng Bike Inner Tube - Presta
DECATHLON 26x1.7-2.2 Self-Sealng Bike Inner Tube - Presta
Rate: 4.1 stars, 689 votes
£7.99
DECATHLON 26X1.2-1.5 Bike Inner Tube - Schrader
DECATHLON 26X1.2-1.5 Bike Inner Tube - Schrader
Rate: 4.5 stars, 851 votes
£3.99
DECATHLON Bike Inner Tube 26x2.2/2.5 Schrader Valve 48mm
DECATHLON Bike Inner Tube 26x2.2/2.5 Schrader Valve 48mm
Rate: 4.4 stars, 548 votes
£3.99
MICHELIN 60 mm Road 700 x18/25 Ultralight Valve Presta Inner Tube
MICHELIN 60 mm Road 700 x18/25 Ultralight Valve Presta Inner Tube
Rate: 4.0 stars, 185 votes
£7.99
DECATHLON 29x1.9/2.5 mm Presta Valve Inner Tube 48 mm
DECATHLON 29x1.9/2.5 mm Presta Valve Inner Tube 48 mm
Rate: 4.5 stars, 1073 votes
£3.99
DECATHLON 27.5" x 1.90/2.50 Self-Sealing 48 mm Presta Valve Inner Tube
DECATHLON 27.5" x 1.90/2.50 Self-Sealing 48 mm Presta Valve Inner Tube
Rate: 4.3 stars, 313 votes
£7.99
DECATHLON Mountain Bike Inner Tube 27.5x1.9-2.5 Presta 48 Light
DECATHLON Mountain Bike Inner Tube 27.5x1.9-2.5 Presta 48 Light
Rate: 4.5 stars, 17 votes
£4.99
DECATHLON 24" 1.5 to 1.9 Schrader Valve Inner Tube
DECATHLON 24" 1.5 to 1.9 Schrader Valve Inner Tube
Rate: 4.6 stars, 236 votes
£3.99
TANNUS Tannus Armour Insert 24" x 1.95-2.5
TANNUS Tannus Armour Insert 24" x 1.95-2.5
Sold and shipped by E-Bikes Direct
£35.00
TANNUS Tannus Armour Insert 700c x 35-40
TANNUS Tannus Armour Insert 700c x 35-40
Sold and shipped by E-Bikes Direct
£40.00
4.3/5 based on 32951 reviews collected online and in stores

Decathlon has mountain bike inner tubes to suit all sizes of MTB tyres including kids sizes (12'+) through to the most popular 26' and 27.5'. It’s not just wheel diameter that’s important, you’ll also want to get the appropriate wheel width. For example, 27.5 x 2.8 means the wheel diameter is 27.5' and 2.8 inches wide.

ETRTO sizing is the European standard which measures in mm rather than inches. For example, the size specification of 37-622 indicates the tyre is 37mm wide and inner wheel diameter is 622 mm.