Ultralight Heat Diffuse rotors road bikes At 155g it is also

At 155g it is also one of the lightest The one piece design yields a stiffness increase of 15% over rivetted aluminium cassettes and the steel cogs are far more durable than titanium or aluminium

with 2RS external bearings and 20-32 internal bearings

20h@134grams | 24h@135grams | 28h/136grams

2-cross on both the drive and non drive rear hub

A forged aluminium head is strong and sturdy

Ultralight Heat Diffuse rotors road bikes At 155g it is alsoFade free, quiet and smooth Still one of the lightest and most durable options available in a 1 piece steel rotor. An exclusive design that optimises stiffness with maximum surface area with the lowest weight possible, without compromising on brake performance. Heat treated to prevent warping, laser cut and machined flat for a straight and true performance. Large laser cut grooves remove heat which eliminates "gassing" which causes the dreaded brake