Heidenau Inner Tube 10/11 F – 41.5G/70° SV Valve

Heidenau 10/11F fits the 4.00, 110/90, 120/90, 130/90, 110/70, 120/70, 130/70 size range for 10-inch rims — a heavier-duty range than the 10D.

The wall here is thinner than in the Cross class — 1.5–2.0mm: enough for a scooter.

Material and durability

Heidenau 10/11F is made from natural rubber: the material resists mechanical stress better than synthetic compounds and retains high elasticity even after prolonged use. The trade-off: it loses pressure slightly faster than synthetic rubber, so check pressure with a gauge from time to time.

Valve and fitment

Heidenau 10/11F comes with an angled 41.5G/70° valve with an extended stem — useful when the standard length doesn't reach.

Application

Heidenau 10/11F suits scooters with a 10-inch rim. Natural rubber retains elasticity better at low temperatures in Kazakhstan's winter, but ages faster than some synthetic materials during prolonged use in summer heat.

Fitting recommendation

When fitting Heidenau 10/11F, check the length and angle of the original valve and use a new rim tape of the correct size. Pinching the tube with tyre levers remains one of the most common causes of premature tube failure.