Technical documents
Wilwood 170-17941 Big Brake Rotor Hat, Dynamic Lug Drive Short Offset, Aluminum — Mazda Miata
$243.42
Wilwood 170-17941 Big Brake Rotor Hat – Dynamic Lug Drive, Short Offset
Wilwood weight-saving forged aluminum mounting hat (P/N 170-17941) — the Big Brake Dynamic Lug Drive short-offset hat that mounts the 11.75″ GT rotor (160-16923) in the Forged Dynapro Big Brake kit for the 1990–2005 Mazda MX-5 Miata. Finished in Type III hard anodize.
Machined from aluminum to minimize unsprung and rotating weight while positioning the rotor at the correct offset for the kit’s caliper alignment. The dynamic lug drive design locates the rotor for concentric, rattle-free running.
Specifications
| Part Number | 170-17941 |
| Type | Big Brake Dynamic Lug Drive – Short Offset |
| Material | Aluminum |
| Finish | Type III Anodize |
| Hat Offset | 0.760″ |
| Hat Bolt Circle | 4 x 3.93″ |
| Mount Hole Type | Lug |
| Rotor Bolt Circle (in) | 8Lug-7.18 |
| Center Reg. (in) | 3.06 |
| Sold As | Each |
Genuine Wilwood rotor hat, sold and supported by Formula Race Parts. Front hat for the Miata Forged Dynapro Big Brake kit (140-17936); two required per car. Pairs the 160-16923 rotor to the Miata front hub.





