rear brake master cylinder & caliper replacement for chinese dirt pit bikebaja ssr 70cc - 200cc with 15mm wheel shaft mtatcn brand new complete rear brake master cylinder caliper assembly for 70cc 90cc 110cc 125cc 140cc 200cc dirt bikes, pit bikes with 15mm rear wheel shaft.the brake comes with 1 pair of free extra brake pad. <br><br> package includes:<br><br> hydraulic brake master cylinder<br> dual pistons brake caliper with a fresh pair of pre-installed brake pads <br> brake fluid hose<br> brake fluid reservoir<br> mounting plate<br><br> common applications on 70cc - 200cc pit bikes dirt bikes with 15mm rear wheel shaft:<br><br> ssr<br> lifan<br> coolster<br> baja<br> sunl<br> roketa<br> jetmoto<br> apollo<br> pre-bled for easy installation.<br><br> please pay attention. there are 2 sizes of shaft diameter 12mm(0.47") and 15mm(0.59") for 70 - 200cc dirt pit bikes. this brake assy with a bracket will only fit for 15mm rear wheel shaft, not fit 12mm rear shaft. we also have brake assy fit for 12mm shaft. please take measurements and confirm before purchasing.