Dragon (Langfeite) models that adopt HB427-H 2-piston brakes such as models of:
Predator, Cyclone (including Pro and later model non-Pro), later model Lightning V2 & Beast
Teverun models of Blade and Fighter.
NUTT brake systems and some of the XOD or other ODM rebrands such as those on early model Dragon Cyclone Pro models.
You will need two (quantity 2) if intending to do full bleed top and bottom.
Notes:
These are the OEM bleed adaptors from levers of ODM TurboBrake, factory-fitted on aforementioned Teverun and Dragon makes. Identical to the one included in Teverun bleed kits.
TurboBrake levers have a thread for the bleed hole screw, which once removed reveals a different thread further down inside the bleed hole for the adaptor (recessed, separate). Only a small amount of thread on the end of the adaptor forms connection (~1mm). When inserting, apply downforce in turn, at the point where the O ring begins to compresses. Do not overtighten.
For application in NUTT and XOD systems, it is best to use these adaptors with additional O rings, due to limited depth. Typically without this adaptor you would need resort to augmenting the common bleed kits adaptors with O rings and/or plumbers tape.
Often adaptors that are included in the common bleed kits can be augmenting with O rings and/or plumbers tape, or you can use a syringe with appropriate nozzle.
Suits NUTT A5-D 2-piston calliper on early NAMI Burn-e, MUKUTA 10+, Limited models of Zero 10X/11X, Dragon Hunter X11, early Dragon Cyclone Pro & early VSETT and 4-piston callipers NUTT Y-5 & TurboBrake HB427-4M.