Schwalbe AV 21 Tube for 27.5″ (40/62-584)

Matching dimensions – Schwalbe AV 21 inner tube

• 40-584 27,5 x 1.50
• 47-584 27,5 x 1.75
• 50-584 27,5 x 2.00
• 54-584 27,5 x 2.10
• 57-584 27,5 x 2.25
• 60-584 27,5 x 2.35
• 62-584 27,5 x 2.40

Contents (choose variant)

• 1 piece
• 50 pieces (in a bag)

Valve

• Length: 40mm
• Type: AV (Schrader)

Weight

• approx. 210 g (piece)

Scope of delivery

• Schwalbe AV 21 Inner tube (no box packaging)

Air pressure stability
A Schwalbe inner tube retains air significantly longer. The quality of the ingredients and the purity of the rubber compound determine the quality of the inner tube. During vulcanization, each Schwalbe hose is placed in a mould and pumped up. This is the only way to guarantee uniform wall thicknesses and excellent air retention.

Reliability
The consistent control that ensures the highest possible functional reliability: Each tube is inflated at the factory and stored under pressure for 32 hours to check its air retention.

Group tube system
Thanks to its high elasticity and quality, a single tube covers a wide range of tire sizes. For example, tube no. 17 works as well with a tire width of 28 mm as it does with 47 mm. Only an extremely high-quality and reliable inner tube can meet this requirement.

VERY GOOD
VERY GOOD The only inner tube with a test rating of “very good” in the Swiss consumer magazine Kassensturz. 29.05.2012. 12 inner tubes in the test. Test winner: Schwalbe SV13

Holds air longer!
The comparison test included selected inner tubes from tire brands, private labels and “no name” products. The result was clear. On average, the other tubes lose almost twice as much air pressure in 30 days as the Schwalbe tube. Possible reasons: Less butyl content, lower quality butyl. Schwalbe is uncompromising in its demands here.

Different tubes on the same rim with the same tire. Tire size 47-622. Start at 5 bar. Loss after 30 days.