CHUMXINY Brake Bleed Kit for Shimano, TEKTRO, TRP Hydraulic Disc Brakes. Bicycle Hydraulic Brake Bleed Kit Includes Brass Connector, 150ML Mineral Oil Brake Fluid

They're talking about the rotor. 1.9mm is rotor thickness. Easiest way to find your pads needed is taking out a pad. You match them to the shape. Brake Pad Overview | SRAM https://www.sram.com/en/learn/brake-welcome-guide/brake-pads They show you what the standard pads look like. Personally i prefer Gekors Ceramic pads. These are what I buy for my dual piston Magura Mt5e and my eride pro s 2025 https://a.co/d/eXTOCTa These may be what you require https://a.co/d/2IVCLMt It's usually those two for ebikes. This for spreading the pads https://a.co/d/f4eM3OC I use this brake bleed kit, great quality for the price. Even the case it's in is good (or at least mine is from 2024. https://a.co/d/8VXSh37 The brake fluid i use ( 1 liter of mineral oil blend ) expensive because it's Magura and has a high boiling point. Buy what yours takes in whatever price point you feel like as $55 is kind of nuts for a liter. https://a.co/d/gWsMdof Every time you replace pads you should clean the calipers and piston walls. extend your pistons and clean around the piston walls, then lube them with the same type of brake fluid that goes into them. Push in and extend, repeat till they're no longer dirty and flowing smoothly. Once satisfied, lube each piston very well with your brakes type if fluid (usually mineral oil, sometimes dot fluid. DO NOT MIX DIFFERENT FLUIDS) and push flat wipe away any excess so the caliper isn't slick. Pistons are just a slug of metal and extending too far will pop them out. Then you'll need to bleed them. If you notice they're extending at an angle, good sign they have gunk on the side thats lower typically at the o-ring seal, or it's just dry on that side. Don't extend the piston past the slit for the rotor. Never seen a tool for single piston, but this is what one would make for 4 Pistons (2 per side, like I have) https://a.co/d/5ipxU2M That's just 3d printed, definitely not worth the money, but I may actually buy it to make my life simpler. I keep forgetting to make something for this task, currently use 3 worn pads, 2 on 1 side normally and 1 vertically so it sandwiches 3x Pistons and lets one extend at a time. Maybe today's project should be making a metal one, with a little handle