Impac by Schwalbe Tube — 20 × 1.5–2.35, Schrader (SV)
A tough, dependable butyl tube for 20″ tyres on kids’ bikes, BMX, folders, and cargo bikes. The car-style Schrader valve makes top-ups easy at any servo and suits rims drilled for the larger valve hole.
Specifications
Wheel Size – 20″ (BSD 406)
Tyre Width Range – 1.50–2.35″ (ETRTO 40–60-406)
Valve Type – Schrader (SV), standard automotive valve
Material – Butyl rubber
Compatibility – Rims drilled for Schrader (~8 mm valve hole)
Contents – Single inner tube
Fit Notes
Partially inflate before fitting, ensure rim tape fully covers spoke holes, and check both beads for pinches. If your rim is drilled for Presta (~6 mm), choose the Presta valve version—don’t enlarge the valve hole unless the rim manufacturer allows it.
Discover more
Book a Test Ride
Book Now
A good test ride is the most important factor when it comes to finding the right bike.
Available for Electric Bikes only and subject to availability.