KCNC Razor Disc Rotor

KCNC Razor Disc Rotor 140mm on scale

Seriously light weight disc rotor, but has a few features that set it apart from other lightweight rotors:

  • 2.0mm thick;
  • no pulsing, although a very open design;
  • surprisingly low pad weigh, largely due to chamfered edges on each of the cut-outs;
  • 140mm rotor weighs 61g (claimed 62g);
  • great value for money at around $23 delivered. Check out KCNC Razor rotors on Amazon.

Here's a close up of the disc rotor surface:

Close-up of disc rotor surface

Related articles:

Tune Kong Rear Disc Hub

For 2011 the Tune Kong rear disc hub has dropped some weight - claimed weight is 205g, mine weighed 212g:

Avid HSX 140mm Rotor

Quick facts:

2012 HS1 Rotor

The braking surface design of these rotors is identical to the 2012 HSX rotors . The weight is very similar (98g each in 160mm) as well and quite consistent across the 4 rotors that I have.

Avid HSX 160mm Rotor

Quick facts:

AEST Disc Brakes

These disc brakes are basically rebranded Hygia Usagi. They are very similar to the Hygia SLP brakes but the calipers are two piece bolted together, whereas the SLPs have monoblock calipers where the entire thing ...

Hygia SLP Rotors

Vital stats: