Review on 🛵 High-Quality Rear Brake Master Cylinder Caliper Assembly Replacement for Chinese ATV Quad - Suitable for 50cc to 125cc Range (Taotao, Boulder B1, Coolster 3050HD) by Jason Robinson

I bought this 125cc Coolster ATV for my sons. The distance between the caliper bracket bolts is the same, but the rear distance is different. You need to place "spacers" (I used washers) between the mounting bracket and allow the caliper piston to apply enough clamping force to the rotor. In my case, I needed about 1/4" shims. You should install the caliper and manually bleed the master cylinder until the pads touch the rotor. You may also need to adjust or even change the caliper mounting on the Master (I had to use the threaded bolt part on the Master remove) to match your brake lever General Thoughts - I would rather invest the effort I put into making this job than the $80+ I'm seeing for a technically correct part from either my local dealer or an online parts store.But the fact that work was required and the original description of the part was a bit vague (listed for 125cc but different model) created some uncertainty which led me to give it 3 stars overall. I would still buy it again instead of paying 10% of the car's value for a caliper.