Impac inner tubes are brilliant. They’re manufactured by Schwalbe (the world’s leading bike tube manufacturer) and come with many of the associated benefits but without the cost of the big brand name. When you want performance but without the price go for Impac.

Inner Tube Size: 26” (ETRTO in brackets after imperial size below)

Fits tyre sizes:

26 x 1.75 (47-559)

26 x 1 3/4 (47-571) 650 x 45C

27.5 x 1.35 (35-584) 650 x 35B

27.5 x 1.50 (40-584) 650 x 38B

27.5 x 1.75 (47-584) 650 x 45B

26 x 1 1/4 (32-590) 650 x 32A

26 x 1 3/8 (37-590) 650 x 35A

26 x 1 5/8 (44-590) 650 x 42A

26 x 1 1/4 (32-597)

Inner Tube Valve Type: Schrader Valve 40mm. Fully threaded valve stem with locknut. (Presta valve has non-removable valve core).