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!
89 items
DECATHLON 700x35-45 Bike Inner Tube - Presta
DECATHLON 700x35-45 Bike Inner Tube - Presta
Rate: 4.5 stars, 1674 votes
£3.99
DECATHLON 700x23-32 Bike Inner Tube, 80mm Valve - Presta
DECATHLON 700x23-32 Bike Inner Tube, 80mm Valve - Presta
Rate: 4.5 stars, 670 votes
£3.99
DECATHLON 700x23-32 Bike Inner Tube - Presta
DECATHLON 700x23-32 Bike Inner Tube - Presta
Rate: 4.4 stars, 3160 votes
£3.99
DECATHLON 700x23/32 Bike Inner Tube, 60mm Valve - Presta
DECATHLON 700x23/32 Bike Inner Tube, 60mm Valve - Presta
Rate: 4.6 stars, 2034 votes
£3.99
DECATHLON 26x1.7-2.2 Bike Inner Tube - Schrader
DECATHLON 26x1.7-2.2 Bike Inner Tube - Schrader
Rate: 4.6 stars, 3956 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, 655 votes
£7.99
DECATHLON 27.5x1.9-2.5 Bike Inner Tube - Schrader
DECATHLON 27.5x1.9-2.5 Bike Inner Tube - Schrader
Rate: 4.6 stars, 2295 votes
£3.99
CONTINENTAL Race Tube - Presta 60mm Valve Road Black 700 X 25-35C
CONTINENTAL Race Tube - Presta 60mm Valve Road Black 700X20-25C
Gallery item 1 out of 2
CONTINENTAL Race Tube - Presta 60mm Valve Road Black 700 X 25-35C
Rate: 5.0 stars, 1 votes
2 colours
Sold and shipped by ALOC Sports Retail
£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: 4.6 stars, 28 votes
£4.99
DECATHLON 650x18-25 Bike Inner Tube - Presta
DECATHLON 650x18-25 Bike Inner Tube - Presta
Rate: 4.6 stars, 102 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, 261 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: 4.7 stars, 586 votes
£3.99
DECATHLON 24x1.7-2.2 Self-sealing Bike Inner Tube - Schrader
DECATHLON 24x1.7-2.2 Self-sealing Bike Inner Tube - Schrader
Rate: 4.6 stars, 108 votes
£6.99
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: 4.6 stars, 401 votes
£7.99
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, 367 votes
£3.99
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, 645 votes
£3.99
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, 787 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, 364 votes
£7.99
DECATHLON Bike Inner Tube 26x2.2/2.5 Schrader Valve 48mm
DECATHLON Bike Inner Tube 26x2.2/2.5 Schrader Valve 48mm
Rate: 4.6 stars, 303 votes
£3.99
DECATHLON 26x1.2-1.5 Bike Inner Tube - Presta
DECATHLON 26x1.2-1.5 Bike Inner Tube - Presta
Rate: 4.6 stars, 262 votes
£3.99
DECATHLON Road Inner Tube 700x23-32 Presta 48 Light
DECATHLON Road Inner Tube 700x23-32 Presta 48 Light
Rate: 4.4 stars, 66 votes
£4.99
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: 4.6 stars, 1308 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: 4.6 stars, 633 votes
£3.99
DECATHLON 24" 1.5 to 1.9 Schrader Valve Inner Tube
DECATHLON 24" 1.5 to 1.9 Schrader Valve Inner Tube
Rate: 4.7 stars, 273 votes
£3.99
DECATHLON 26x1.7-2.2 Bike Inner Tube - Presta
DECATHLON 26x1.7-2.2 Bike Inner Tube - Presta
Rate: 4.5 stars, 950 votes
£3.99
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, 469 votes
£3.99
DECATHLON 700x35 / 45 Self-Repairing Schrader Inner Tube
DECATHLON 700x35 / 45 Self-Repairing Schrader Inner Tube
Rate: 4.3 stars, 507 votes
£7.99
TANNUS Tannus Armour MTB Bike Tyre Insert - 27.5" x 2.0/2.5
TANNUS Tannus Armour MTB Bike Tyre Insert - 27.5" x 2.0/2.5
Sold and shipped by E-Bikes Direct
£40.00
SLIME Slime Smart Tube - 27.5" x 2.00-2.40 - Presta Valve
SLIME Slime Smart Tube - 27.5" x 2.00-2.40 - Presta Valve
Sold and shipped by Sprocket and Gear Ltd
£12.98
DECATHLON 26X1.2-1.5 Bike Inner Tube - Schrader
DECATHLON 26X1.2-1.5 Bike Inner Tube - Schrader
Rate: 4.6 stars, 562 votes
£3.99
CONTINENTAL Tour Tube - Presta 60mm Valve Urban Black 700X32-47C
CONTINENTAL Tour Tube - Presta 60mm Valve Urban Black 700X32-47C
Rate: 5.0 stars, 1 votes
Sold and shipped by ALOC Sports Retail
£7.99
DECATHLON 20x1.3/8 BMX Bike Inner Tube - Presta
DECATHLON 20x1.3/8 BMX Bike Inner Tube - Presta
Rate: 4.3 stars, 78 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: 4.7 stars, 80 votes
£4.99
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: 4.4 stars, 29 votes
£3.99
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: 4.6 stars, 182 votes
£3.99
TANNUS Tannus Armour Foam Insert Tubeless 27.5"
TANNUS Tannus Armour Foam Insert Tubeless 27.5"
Sold and shipped by E-Bikes Direct
£50.00
CONTINENTAL Race Tube Light - Presta 60mm Valve Road Black 700X20-25C Lightweight
CONTINENTAL Race Tube Light - Presta 60mm Valve Road Black 700X20-25C Lightweight
Sold and shipped by ALOC Sports Retail
£10.95
CONTINENTAL Continental Tour 26 Inner Tube Schrader Valve
CONTINENTAL Continental Tour 26 Inner Tube Schrader Valve
Sold and shipped by Sprocket and Gear Ltd
£8.49
CONTINENTAL MTB Tube - Presta 60mm Valve MTB Black 29X1.75-2.5"
CONTINENTAL MTB Tube - Presta 60mm Valve MTB Black 26X1.75-2.5"
Gallery item 1 out of 2
CONTINENTAL MTB Tube - Presta 60mm Valve MTB Black 29X1.75-2.5"
2 colours
Sold and shipped by ALOC Sports Retail
£7.99
CONTINENTAL Cross Tube - Presta 42mm Valve Road Black 700X32-47C
CONTINENTAL Cross Tube - Presta 42mm Valve Road Black 700X32-47C
Sold and shipped by ALOC Sports Retail
£7.49
4.4/5 based on 28762 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.