catazer mtb road hb-100 mtb road line pulling hydraulic disc brake calipers front & rear mountain bike disc brake e-bike disc brake (1 pair red) catazer brand name:zoom ?xtech <br> color:black,red<br> weight:front 199.6g,rear:204.8g<br> compatible both 51mm is & 74mm post mounting<br> rotors size: 160mm<br> dual piston brake type: lining pulled hydraulic disc brake suitable for mountain e-bike,bikes, road bikes and folding bikes<br> components:disc brake<br>