Do the GiroDisc 390mm Rear Rotors for McLaren fit a 765LT with standard brakes?

No. The 390mm Rear Rotors for McLaren are built for the 765LT and 750S fitted with the upgraded MSO track brake package, which uses 390mm rear discs. Cars with the standard brake package run 380mm rear discs and need a different GiroDisc part.

What do these rear rotors replace on the car?

They are a direct replacement for the factory carbon-ceramic rear rotors on MSO track brake equipped cars. The rear axle moves to two-piece iron, with a black-anodized aluminum hat and a 72-vane cast iron ring that can be renewed on its own as it wears.

How thick are the rear rings and what is the service limit?

The rings are 34mm thick when new, and GiroDisc recommends replacing them at 32mm. They should also be changed straight away if a crack runs to the edge of the ring. The replacement part is D2-206, sold in pairs with hardware.

Where are GiroDisc rotors manufactured?

GiroDisc machines the hats, rotor rings and drive pins in-house at its facility in Bellingham, Washington, from domestically sourced materials. The ring iron is a proprietary high-carbon casting made to GiroDisc specifications, which gives the rotor good resistance to hard track use.

Will floating rear rotors rattle on the road?

No. GiroDisc assembles each rotor with spring clips and Belleville washers. They allow the ring to grow with heat and stay centered, yet hold it firmly enough that there is no noise from loose hardware when the car is driven slowly on the street.

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Description

GiroDisc 390mm Rear Rotors for McLaren 765LT and 750S with MSO Track Brakes

GiroDisc’s 390mm Rear Rotors for McLaren 765LT and 750S are made for cars fitted with the upgraded MSO track brake package, whose rear discs are 390mm rather than the 380mm used with the standard brakes. They are a direct replacement for the factory carbon-ceramic rear rotors, moving the axle to two-piece iron. Each 34mm ring carries 72 curved vanes and floats on a black-anodized 6061-T6 aluminum hat. This is the rear brake for owners who track their car hard and want a consumable that costs sensibly to renew.

Design and Performance

GiroDisc casts the rings from its own high-carbon iron and machines hats, rings and drive pins in Bellingham, Washington from domestically sourced material. Spring clips and Belleville washers give the ring race-ready float while keeping it quiet on the street. When the rings wear to 32mm, new D2-206 rings bolt onto the same hats.

Features

390mm rear rotor to suit the MSO track brake package
34mm ring with 72 curved cooling vanes
Black-anodized 6061-T6 aluminum hat
Cadmium-plated high-strength steel drive pins
Spring clips and Belleville washers for quiet float
Hats, rings and pins made in-house in Bellingham

Specifications

Outer diameter: 390mm
Thickness: 34mm
Minimum thickness: 32mm
Vane count: 72 curved
Replacement rings: D2-206

What’s Included

Rear rotor assemblies (L/R)

Applications

McLaren 750S: With upgraded MSO track brake package
McLaren 765LT: With upgraded MSO track brake package

Notes

Cars on the standard brake package use 380mm rear discs and are not covered by the 390mm Rear Rotors for McLaren
Worn rings are replaced with the GiroDisc 390mm rear replacement rings for the McLaren 765LT and 750S on the existing hats
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 390mm Rear Rotors for McLaren fit a 765LT with standard brakes? No. The 390mm Rear Rotors for McLaren are built for the 765LT and 750S fitted with the upgraded MSO track brake package, which uses 390mm rear discs. Cars with the standard brake package run 380mm rear discs and need a different GiroDisc part.
What do these rear rotors replace on the car? They are a direct replacement for the factory carbon-ceramic rear rotors on MSO track brake equipped cars. The rear axle moves to two-piece iron, with a black-anodized aluminum hat and a 72-vane cast iron ring that can be renewed on its own as it wears.
How thick are the rear rings and what is the service limit? The rings are 34mm thick when new, and GiroDisc recommends replacing them at 32mm. They should also be changed straight away if a crack runs to the edge of the ring. The replacement part is D2-206, sold in pairs with hardware.
Where are GiroDisc rotors manufactured? GiroDisc machines the hats, rotor rings and drive pins in-house at its facility in Bellingham, Washington, from domestically sourced materials. The ring iron is a proprietary high-carbon casting made to GiroDisc specifications, which gives the rotor good resistance to hard track use.
Will floating rear rotors rattle on the road? No. GiroDisc assembles each rotor with spring clips and Belleville washers. They allow the ring to grow with heat and stay centered, yet hold it firmly enough that there is no noise from loose hardware when the car is driven slowly on the street.

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 390mm Rear Rotors for McLaren 765LT and 750S with MSO Track Brakes [A2-206]

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GiroDisc 390mm Rear Rotors for McLaren 765LT and 750S with MSO Track Brakes

Design and Performance

Features

Specifications

What’s Included

Applications

Notes

Frequently Asked Questions

About GiroDisc

Reviews