Lightest IMCA legal rotors.  Cut down on rotating weight
 
Info 
Lightweight 
Wilwood ULHD-16 Curved Vane Spec-37 rotors are engineered  to withstand extreme temperatures with the highest degree of resistance against distortion, warping, cracking, and wear. This rotor is manufactured from proprietary iron alloy that was derived from the extreme duty military spec rotors Wilwood manufactured. Every Spec-37 rotor is precision machined to less than .001" run-out, flatness, and parallelism. The HP series preparation includes full detail machining and smooth pad contact faces without slots.
11.75" diameter
0.99" width
Rotor type: HD
Style: Plain face
Spec-37 Iron
Vane count: 16 CV
Weight: 7.1
Mount: left hand
Rotor bolt circle: 8 x 7.00"
Rotor mount hole size: 0.326"
Lug ID/Registration: 6.38"
Far side inside diameter: 8.46"
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LH- 160-13979
RH- 160-13978