Do the GiroDisc 380mm Rear Rotors for McLaren need any modification to fit?

No. GiroDisc builds the 380mm Rear Rotors for McLaren as a direct replacement for the factory ceramic rear discs on the 570S and 570GT. They bolt to the hubs and work with the original rear calipers, so the job is a straight exchange of parts with no spacers or machining.

Why do the curved vanes on the 570S rear rotors matter?

Curved vanes act as a centrifugal pump. As the rotor turns, air is drawn in at the hub and forced outward through the ring, carrying heat away from the friction surface. That is why each GiroDisc rotor is handed and must sit on the correct side of the car.

What holds the iron ring to the aluminum hat on the McLaren rear rotors?

Twelve high-strength alloy steel drive pins, made by GiroDisc and cadmium plated, carry the braking load between ring and hat while allowing axial and radial float. Class 12.9 cap screws with hardened washers secure them, and anti-noise spring washers keep the floating ring from rattling when cold.

Are replacement rings available for the 570S and 570GT rear rotors?

Yes. GiroDisc D2-159 rings replace the iron rings once they reach minimum thickness or show a crack reaching the edge. They come as a pair with new hardware and reuse the existing GiroDisc hats, which keeps ongoing costs well below buying complete rotors each time.

Is a bed-in procedure needed after fitting the McLaren rear rotors?

Yes. GiroDisc recommends a bed-in procedure for any new disc. Bed the rotors in with a series of progressively firmer stops before the first track session, so the friction surface is conditioned evenly and the 570S or 570GT stops consistently from the first lap.

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Description

GiroDisc 380mm Rear Rotors for McLaren 570S and 570GT

GiroDisc’s 380mm Rear Rotors for McLaren 570S and 570GT replace the factory carbon-ceramic rear discs with no modifications at all; they bolt straight to the car and work with the original calipers. Paired with the matching front set, they turn a ceramic-braked McLaren into an iron-braked track car whose wear parts can be renewed ring by ring. Twelve cadmium-plated drive pins float each cast iron ring on a 6061-T6 aluminum hat.

Bolt-On and Go

Fitting the 380mm Rear Rotors for McLaren is a straight swap at the rear hubs: the original calipers go back on unchanged and nothing needs machining. Curved vanes inside the ring move air from the hub to the outer edge, and spring washers on the drive pins allow heat growth while keeping the assembly quiet on a cold start.

Features

Direct replacement for the factory rear ceramic disc with no modifications
Works with the original McLaren rear calipers
Cast iron ring floating on a 6061-T6 aluminum hat
12 drive pins secured by class 12.9 cap screws and hardened washers
Curved cooling vanes that pump air out through the disc
Labeled left and right for correct rotation

What’s Included

Rear rotor assemblies (L/R)

Applications

McLaren 570GT: 3.8L twin-turbo V8
McLaren 570S: 3.8L twin-turbo V8

Notes

GiroDisc builds this set to replace factory carbon-ceramic rear discs on the 570S and 570GT
Worn rings are renewed with the GiroDisc 380mm rear replacement rings, which bolt to these hats
Pair them with the GiroDisc 394mm front rotors for the 570S for a full iron conversion
Cap screws are never tightened beyond 60 in-lb (7 Nm)
Stock photography may not depict the actual product

Frequently Asked Questions

Do the GiroDisc 380mm Rear Rotors for McLaren need any modification to fit? No. GiroDisc builds the 380mm Rear Rotors for McLaren as a direct replacement for the factory ceramic rear discs on the 570S and 570GT. They bolt to the hubs and work with the original rear calipers, so the job is a straight exchange of parts with no spacers or machining.
Why do the curved vanes on the 570S rear rotors matter? Curved vanes act as a centrifugal pump. As the rotor turns, air is drawn in at the hub and forced outward through the ring, carrying heat away from the friction surface. That is why each GiroDisc rotor is handed and must sit on the correct side of the car.
What holds the iron ring to the aluminum hat on the McLaren rear rotors? Twelve high-strength alloy steel drive pins, made by GiroDisc and cadmium plated, carry the braking load between ring and hat while allowing axial and radial float. Class 12.9 cap screws with hardened washers secure them, and anti-noise spring washers keep the floating ring from rattling when cold.
Are replacement rings available for the 570S and 570GT rear rotors? Yes. GiroDisc D2-159 rings replace the iron rings once they reach minimum thickness or show a crack reaching the edge. They come as a pair with new hardware and reuse the existing GiroDisc hats, which keeps ongoing costs well below buying complete rotors each time.
Is a bed-in procedure needed after fitting the McLaren rear rotors? Yes. GiroDisc recommends a bed-in procedure for any new disc. Bed the rotors in with a series of progressively firmer stops before the first track session, so the friction surface is conditioned evenly and the 570S or 570GT stops consistently from the first lap.

About GiroDisc

GiroDisc designs, manufactures, and sells 2-piece, fully floating brake rotors for a wide range of performance vehicles. Every major component, including the hats, rotor rings, and drive pins, is manufactured in-house at their facility in Bellingham, Washington, from domestically sourced materials. GiroDisc rotors use a proprietary high-carbon iron ring formulated for superior metallurgy and thermal performance, paired with reusable machined-aluminum hats that reduce the long-term cost of maintaining a high-performance brake system. The 2-piece floating design sheds unsprung and rotating mass while remaining street-friendly, delivering race-proven braking for track and street use alike.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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GiroDisc 380mm Rear Rotors for McLaren 570S and 570GT [A2-159]

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GiroDisc 380mm Rear Rotors for McLaren 570S and 570GT

Bolt-On and Go

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About GiroDisc

Reviews