New hoses and brakes, just bled, everything went fine. Installed the wheel and pads but when I tried the rear brake, it didn’t do anything. As you see in the video, the lever is behaving as normal but nothing happens at the caliper. I’m quite confused because fluid was freely moving when I was bleeding it. Thanks!
by Quivey
13 Comments
Some hose ends that come new will have rubber seals on the end to stop the fluid from coming out. Check where you attached the hose to the line
Did you use a new olive with the new hose? Are you sure the olive crimped correctly after insertion?
Usually pistons are fully inserted from factory and you have to realy squeeze the brake hard couple of times, so they move out a little bit yo actually start engaging. Try to squeeze brakes hard couple of times (5-10x times even) and see, if it will start doing anything.
Based on the motion of your levers I’d say the problem is where the hose goes into the brake lever
You installed them backwards. Try that lever with the front wheel.
^^^/s
Mmmm looks like you’re trying to stop the rear wheel with the front brake lever
That lever looks like it is not pushing fluid brake fluid through the hose, typically happens in Sram levers when the barb/olive are installed wrong.
These levers are designed to not let you squeeze them when there is no hose installed. The amount of lever movement you’re getting looks very similar to trying to squeeze a disconnected lever. If the barb or olive are installed incorrectly, the lever basically thinks it’s disconnected and doesn’t push fluid through.
I’ve seen a lot of people install the olive backwards, check that first.
There is a check valve in the lever fitting(stealth-a-majig). The compression fitting is noyt tight enough to open the valve.
Check the olive and barb(olive should be fully on hose, not sticking off the end). Tighten again to torque. It takes a couple tries sometimes.
You probably forgot the barb fitting on the hose and when you screwed in the bolt around the olive, it just crushed the hose, basically sealing off the system.
Do you add new Fittings and olive after cutter hose?
Do you bleed the system while is is installed on bike?
I’d remove the wheel and put in a bleed block to observe the pistons going in. Once I’ve forgotten to replace the brake pads after bleeding (!). Otherwise I’d look for signs of oil leaks. If your hose wasn’t installed properly you’ll find oil coming out. Good luck!
I’d almost guarantee the olive and barb aren’t installed correctly. Have seen this before on Sram brakes
Are you missing a frame-mounting screw on the caliper?