1. Carrier is designed with high strength structure and made of high strength & light material aluminum 7075.
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. Improve brake pad rubbing and disk force unequally as braking.
3. Patented float buttons and double rivets structure design to get the big space floating.
As thermal expansion, disk still keeps floating effectively, not easily deformed and braking steady.
4. Disk is designed with big space floating.
As using, there will be some sound of metal knocking slightly.
This is the normal condition.
Please understand and accept above before purchasing.
YAMAHA N-23 T Type Rivet Floated Round Rear Disk 220mm For 4TH NEW CYGNUS-X 125