Made from aluminium. not cheap alternatives.
Pair of Shimano RT‑CL800 160mm Disc Brake Rotor – Ice Tech Freeza – rode 5km
(Pair of) Shimano Tiagra ST-4700 STI Shifter Brake Levers 2x10 Speed 4700
Pair of Shimano 105 shifters gears/brakes
Pair Of Shimano sM RT53 160mm Brake Discs Centre Lock Splined Used
2X Pair of Shimano 160mm / 180mm 6 Bolts Disc Brake Rotors Kona Trek Scott Giant
(Pair of) Shimano Tiagra ST-4700 STI Shifter Brake Levers 2x10 Speed 4700 (NEW)