I have a trek fx2. Brakes aren't working at all. I'm going to bring it to the shop but I'm hoping I can put some more fluid in see if it helps at all just so I can ride it to the shop. Would that possible damage anything? Also what would cause a leak? On my my brake lever area is a bit greasy but I'm not sure if it's from a leak because where I park my bike at work it's leaned up against shelves that has oil and various tools not sure might of just leaned on some oil. My brakes are Brakes Tektro HD-R280 hydraulic disc, flat mount, 160mm rotor. Is the fluid pretty standard? It says it take mineral oil I looked up some bike mineral oil from walmart
by mikeybagodonuts8
2 Comments
Yes. But the bolt to remove is the other one to the right, not the one you are pointing to.
Make sure it’s the highest part and have the reservoir level to avoid spilling.
I think it looks like the one your pointing too. I should be a allen head to remove it and there is a small rubber seal you dont want to loose. What Bolinious means is that you want that screw level so you would loosen the brake lever from the bars to where that screws is level, then remove it and refill. Youtube has some videos on how to bleed the brakes if you have never done that. Well there is a quick way and the proper way. I just fill the resivor, put screw on and then bleed the brakes (squeeze/release several times). Eventually it will tighten up again. I’d give it a try, maybe you lost a seal in one of the caliper pistons and its leaking causing brake issues or it got stuck. I always like to say: At least I tried before I take my car to the dealership. This is good time to also say “Hey time for a new backup bike” I wonder how I ended up with 3. Actually have two down right now but I rode today (bike 3). One needs an adjustment on new derailleur and other needs rear axle repacked with the new freehub. As for calipers sometimes I just buy a new one when there are issues with the pistons getting stuck.