The AoXin 8.5x3.0 tube has a 60cm long length valve, well suited to models of the VSETT 9 series and Zero 9 / Dragon X9.
Suits 8.5x3 tyres on 5.5" rims where valve extends at 90 degrees with a true 90 degree tilt requiring valve of generous length. Typically fitted to motor hub rims of:
For non-motor hub wheels, consider the 60 degree tilt tube or a 45 degree valve of any tilt so that the valve can reside between the rim "spokes" and clear the swing arms on rotation.
Typical weight 110g.
AoXin branded with white print nameplate, silver colour stem.
Notes:
The 60mm stem length is taken as a diagonal measure from the tip of the stem to the furthest part of the moulding which inside the tyre.
Typically paired with tyre such as the Tuovt 8.5x3.
Product images show tube at 4PSI inflation on the bench. This tyre appears visually "fatter" to accommodate 3" wide tyres, whereas tubes such as 8.5x2" (50-156) tubes for larger 6.1" rims have narrower tyres such as those on Xiaomi M365. The bend is approximately 21mm from the tube making it great for narrow cavity.
The next length step down in the 90 degree tilt shape would be the CST 8.5x2.00-5.5, however it still runs a little short which impacts ease of inflation.