Schrader Valve Stem (straight) 11mm seat [17mm | 21mm]

• The Schrader Valve Stem (straight) 11mm seat [17mm | 21mm] is a common valve for eScooters that require a straight valve for tubeless operation. Recommend replacing when renewing tyres.
• Available in the common (shorter) 17mm or the slightly longer 21mm, the later is required for Apollo City Pro.
• 11mm seat for 8.8-9.5mm valve hole (closer to 8.8mm is best).

Notes:

1. Product images 5-7 show the 17mm valve contrasted against the longer TR438 valve as used on NAMI Electric models.
2. Most tubeless 11" makes/models use 12mm seat PVR50 valve which is a bent valve, with exceptions such as later model NAMI which adopts a 12.5mm seat straight TR438 valve. Use the TR438 valve as a straight valve in NAMI rather than this 11mm seat straight valve as it supports the wider 8.8-9.5mm hole adopted on NAMI motors. Same with Wolf Warrior and likewise in Dragon Hurricane.
3. As well described by ElectricScooterParts.com (note the 11mm seat).