Stahlbus check valve bleed nipples replace the front calliper bleed nipples to allow you to bleed the brakes one your own.
No need for a friend to continuously open and close the bleed nipple and you pump and hold the brakes. You just open the bleed valve slightly, place a hose over the nipple and into a container. Pump the brakes and then tighten the nipple back down.
The internal check valve only allows the fluid and air to flow out of the system so no air can get back in which can cause dangerous brake loss.
You get a pair of bleed nipples and 2 silver caps to keep everything clean and tidy.
These are M8x1.25 in size
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