Bleed hydraulic bike brakes
-
Match the fluid to the brake.
Mineral oil for Shimano and Magura, DOT for SRAM. Swapping them destroys the seals, quietly.
-
Set the lever level and open the system.
Bars rotated so the lever cup sits flat, bleed cup on top, syringe at the caliper.
-
Push fluid up from the bottom.
Bubbles rise: feeding upward chases them naturally to the cup at the lever.
-
Flick and tap the line.
Tap the caliper and hose while pushing. Stubborn bubbles cling to fittings until vibrated free.
-
Close up, clean everything, test hard.
Seal, wipe every drop off pads territory, pump the lever firm, then test-stop in the yard, not in traffic.
- 1 Founder draft core @bernard ⚡ new
#1 becomes the Core. This atoma is young: submit a better distillation and take the seat.
No gear needed. Your pot, a timer and ice are enough. That is the point.




