Wilwood Hat-Dynamic BB Front, 0.29" Offset, 5 x 4.75 - 12 on 8.75" *Discontinued
Wilwood Hat-Dynamic BB Front, 0.29" Offset, 5 x 4.75 - 12 on 8.75" *Discontinued
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33 in stock
Shipping & returns
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
Read the shipping policyReturns
Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
- Shipping dimensions (L × W × H)
- Shipping weight
- 2.4 lb
- Barcode
- 889545042153
Billable shipping weight; may include dimensional weight.
Big Brake Dynamic Bobbin Mount Hat - Short Offset 170-13170
Wilwood's new Dynamic Bobbin Mount Hats incorporate a new rotor mounting system that allows the rotors to move independently of the hats as they expand and contract through heat cycles. All thermally generated stress is removed from the rotor attachment points. The rotors stay flattered and run truer. Brake response and pedal feel remain consistent. Pad knockback and rotor drag are eliminated. The hats are no longer distorted by stresses generated by thermal expansion and shrinkage of the rotors. All problems associated with thermal distortion are eliminated.
| Hat Dimensions | |
|---|---|
| Mount Hole Type | Bobbin |
| Rotor Bolt Circle (in) | 12 x 8.75 |
| Hat Offset (in) | 0.29 |
| Center Reg. (in) | 2.78 |
| Hat Type | |
| Material | Aluminum |
| Mount Style | Dynamic Mount |
| Finish | Type III Anodize |
| Weight (lbs) | 2.43 |
| Bolt Circle Dimensions | |
| Hat Bolt Circle 1 | 5 x 4.75 |
| Hat Bolt Circle 2 | |
| Hat Bolt Circle 3 | |
| Application Info | |
| Application Note | General Big Brake Applications |
| Hat Bolt Kit Part # | Call |
| Application Note | |
|---|---|
| Application Note | Wheel mounting pad must not be larger than 6.00" to fit into inset area of this hat. |
| Additional Hat Dimensions | |
|---|---|
| Rotor Mount Hole Size (in) | Bobbin |
| Shoe I.D. (in) | |
| Clearance I.D. (in) | 6.9 |
| Face Thickness (in) | 0.3 |
| Hat Stud Diamenter - BC 1 (in) | 0.52 |
| Hat Stud Diamenter - BC 2 (in) | |
| Hat Stud Diamenter - BC 3 (in) | |
