Patented honeycomb cooling fin: being larger and having holes makes the heat expulsion surface larger.

Cover material: modified graphene (carbon).

Plate material: aluminum coated with graphene.

Compatibility: Shimano Dura Ace BR-R9270,BR-R9170, Ultegra BR-R8170,BR-R8070, 105 BR-R7070, Tiagra BR-4770,

GRX BR-RX810,BR-RX400, XTR BR-M9100,BR-M9110, XT BR -M8110 SLX BR-M7110, Metrea BR-U5000, BR-RS805, BR-RS505, BR-RS405, BR-RS305, TRP HD -T910,

Tektro HD-R510, HD-R310, Rever MCX1.