EBC - “R“ Long Life Sintered Brake Pad (FA357R)High density sintered copper material, the R Series of heavy duty ATV and moto X pads have become an aftermarket standard offering high durability, high resistance to contamination by mud, water, sand and grit, etc., offering reduced disc damage and long pad life. To determine EBC part number, add corresponding suffix to brake number: Brakes shoes number without suffix = Organic Carbon Graphite. Example: 338. Brakes shoes number with suffix G =