My minimum requirement for a bleed kit is that it should remove air from the system rather than introduce air. At least in combination with Dominion A2s, this kit does not meet that requirement as the bleed fittings are not equipped with gaskets. Applying even a small amount of negative pressure on the plunger, per Hayes' bleed instructions, pulls air in through the fitting threads and the next time you put positive pressure on the plunger, it pushes the air into the system. You can see in the Hayes bleed video that the tech is using an entirely different kit with sealed bleed fittings.
Save your money and buy a Sram bleed kit, which comes with sealed fittings.
The Hayes Dominion brake bleed kit combined with the Hayes Legacy Fittings kit allow me to recharge my DOT fluid, remove air, and return my Hayes Nine brakes to full functionality.
Super good kit
Would have been 4 or 5 stars if the fittings didn't leak. Good syringes and comes in a nice box. The fittings are well made too, but without an o-ring, they leak, at least at the lever they do. Be careful not to draw air into the master cylinder.
No instructions included & lots of little pieces in the kit. Useless without instructions showing how to properly connect the pieces & how to use it. Not even a link to this documentation on their website.




