NEW METRIC 30mm REAR Go Kart Racing Brake Caliper Piston Rebuild Kit # 116

Set of (2) brand new brass brake caliper pistons with integrated pad-retracting magnets.  Includes seals.

• Piston O.D. (Seal I.D.) = 30mm
  
  
• Piston length = 17mm
  
  
• Seal O.D. = 36mm
  
  
• Seal thickness = 3mm