1.Precisely double diamond grinding the disk to make the optimum brake performance.
Rotor is made of 410 stainless steel, special material for brake disk, from Japan.
Heat treatment HRC 35~38, increasing hardness and wear resistance.
2.Disk inner side and outer side with ED treatment to improve the corrosion and wear resistance and get the great weather resistance.
3.Side cutting for better radiating effectively.
4.Attached NCY Brake Pad to get the best braking.
5.Outer thickness 4mm. (for international security standard)
SYM N-23 Fixed Rear Brake Disk 233mm for DRG 158