What does the BBS FI-R Diamond Black wheel in 20x11.5 +40 fit?

It is the rear axle fitment for the 4S Audi R8 and the LB724 Lamborghini Huracan, both of which run a 5x112 bolt pattern on a shared platform. BBS lists the two cars under the same FI-R application. Confirm the brake package before ordering, because caliper geometry varies between the specifications.

Is the FI-R forged or cast?

Forged. BBS die-forges the FI-R from a single billet under up to 18 million pounds of force, producing a one-piece monoblock with no bolts or welds. Forging closes the internal porosity that casting leaves behind, which is what allows the rim section to be made thinner and lighter without giving up strength.

PFS is the BBS Precision Fitment System. Instead of machining one fixed center bore into the wheel, BBS sets the bore with a hub ring matched to the application, which is how a single wheel part number covers both the R8 and the Huracan. Tell us the vehicle when ordering so the correct ring is specified.

How much does the 20x11.5 FI-R weigh?

20.5lbs, or 9.3kg. That is light for a forged wheel 11.5 inches wide, and behind a mid-engined V10 it is where a weight saving does the most good. Lower rotating mass eases the load on the brakes and drivetrain, and lower unsprung mass gives the dampers less to control.

What front wheel pairs with this rear?

The 20x9 +35, part FI140, in the same 5x112 FI-R program. A complete staggered set is two of these 20x11.5 +40 rears and two 20x9 +35 fronts. The front is listed separately in Diamond Black, so the set can be built in a single finish.

Will the factory TPMS sensors transfer?

The wheel accepts a standard clamp-in sensor, so the existing sensors can usually be moved across from the factory wheels during mounting. Sensors are not supplied with the wheel. Have the tire shop check sensor condition and battery life while the wheels are apart, since replacing one later means breaking the tire bead again.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

Product Inquiry

Description

BBS FI-R Diamond Black Wheel (20×11.5 +40) for 4S Audi R8 and Lamborghini Huracán

The BBS FI-R Diamond Black wheel answers a question every R8 and Huracán owner eventually asks, which is what to do about the weight hanging off the rear axle of a mid-engined V10. BBS has built race wheels since the 1970s, and the FI-R uses the same multi-stage die-forging: a single billet of aluminum pressed into a monoblock whose grain structure follows the finished shape of the wheel rather than running straight through it. At 20.5lbs in 20×11.5, it is light enough to change how the car behaves rather than only how it looks, and the five Y-spoke face in Diamond Black sits dark enough to let a carbon ceramic disc and a colored caliper read clearly through it. On cars whose engineering is the whole proposition, this is the rare upgrade that respects it.

Forged Construction

BBS die-forges the FI-R under up to 18 million pounds of force, starting from a billet of 6000 series aluminum or the company’s own magnesium alloy depending on the application. Forging closes the porosity that casting leaves behind and aligns the grain along the load paths the wheel actually sees, so the rim section can be made thinner without giving up strength. The spokes, hub face and barrel are one continuous piece of metal, with no bolts, no welds and no joint to fatigue.

Weight and Design

Each cross spoke carries a relief hole that takes material out of a low-load area, and the back faces are milled to the minimum section the structure needs. 20.5lbs for a 20 inch wheel 11.5 inches wide is a low figure, and behind the rear axle of a mid-engined car it matters twice over: less rotating mass for the brakes to arrest, and less unsprung mass for the dampers to control over a surface the car is already asking a lot of.

Fitment

This is the rear wheel in the BBS FI-R program shared by the Audi R8 and the Lamborghini Huracán, which run the same 5×112 pattern on a common platform. The matching front is the 20×9 +35. Rather than machining a single fixed bore, BBS lists this wheel under its PFS fitment system, so the hub ring is matched to the vehicle it is going on.

Features

One-piece die-forged aluminum monoblock
Multi-stage die-forging for grain structure aligned to the wheel’s load paths
Weight relief milled into each cross spoke
Lightweight at 20.5lbs for a 20×11.5 wheel
Five Y-spoke face
BBS PFS fitment system in place of a fixed center bore
Diamond Black finish
BBS Forged Line series

Specifications

Series – BBS Forged Line
Model – FI-R
Construction – One-piece die-forged aluminum monoblock
Diameter – 20″
Width – 11.5″
Offset – +40mm
Bolt Pattern – 5×112
Center Bore – PFS (Precision Fitment System)
Weight – 20.5lbs (9.3kg)
Position – Rear axle
Finish – Diamond Black
Part Number – FI141DB
BBS Item Number – 1618157

Applications

Audi R8: 4S | 2017-2024 | 5.2L V10
Lamborghini Huracán: LB724 | 2015-2024 | 5.2L V10

Notes

Sold as a single wheel, not a set of four
This is the rear axle fitment, and a full set needs two of these plus two of the matching 20×9 +35 front
Pairs with the BBS FI-R Diamond Black 20×9 +35 front wheel (FI140DB)
The same wheel is also listed in Satin Black and Gloss Platinum
This wheel uses the BBS PFS hub ring system rather than a fixed bore, so confirm the vehicle when ordering so the correct ring is matched
TPMS sensors are not supplied with the wheel
Confirm caliper clearance before ordering if the vehicle runs an aftermarket brake package
Vehicles that have been lowered or otherwise modified need enough clearance between the fender and the suspension components. Tire size and alignment should both be checked against the revised setup.

Frequently Asked Questions

What does the BBS FI-R Diamond Black wheel in 20×11.5 +40 fit? It is the rear axle fitment for the 4S Audi R8 and the LB724 Lamborghini Huracán, both of which run a 5×112 bolt pattern on a shared platform. BBS lists the two cars under the same FI-R application. Confirm the brake package before ordering, because caliper geometry varies between the specifications.
Is the FI-R forged or cast? Forged. BBS die-forges the FI-R from a single billet under up to 18 million pounds of force, producing a one-piece monoblock with no bolts or welds. Forging closes the internal porosity that casting leaves behind, which is what allows the rim section to be made thinner and lighter without giving up strength.
What is PFS? PFS is the BBS Precision Fitment System. Instead of machining one fixed center bore into the wheel, BBS sets the bore with a hub ring matched to the application, which is how a single wheel part number covers both the R8 and the Huracán. Tell us the vehicle when ordering so the correct ring is specified.
How much does the 20×11.5 FI-R weigh? 20.5lbs, or 9.3kg. That is light for a forged wheel 11.5 inches wide, and behind a mid-engined V10 it is where a weight saving does the most good. Lower rotating mass eases the load on the brakes and drivetrain, and lower unsprung mass gives the dampers less to control.
What front wheel pairs with this rear? The 20×9 +35, part FI140, in the same 5×112 FI-R program. A complete staggered set is two of these 20×11.5 +40 rears and two 20×9 +35 fronts. The front is listed separately in Diamond Black, so the set can be built in a single finish.
Will the factory TPMS sensors transfer? The wheel accepts a standard clamp-in sensor, so the existing sensors can usually be moved across from the factory wheels during mounting. Sensors are not supplied with the wheel. Have the tire shop check sensor condition and battery life while the wheels are apart, since replacing one later means breaking the tire bead again.

About BBS

In 1970, two motor racing enthusiasts from Schiltach in Germany’s Black Forest, Heinrich Baumgartner and Klaus Brand, founded BBS. They started by making lightweight fiberglass body parts to give their own cars a better chance on track. To cut unsprung weight further they developed a three-piece race wheel, which drew the attention of professional teams including BMW Motorsport and grew the company quickly. In 1983 the three-piece RS design arrived and has been one of the most recognized wheels in the industry ever since. Technology through Motorsport has been the company’s mission statement throughout.

BBS builds wheels for cars, trucks and SUVs across three ranges. The Forged Line covers one-piece and two-piece forged designs, the Performance Line covers one-piece and dual-construction flow formed models, and the Design Line covers low pressure cast rims. Design, testing and manufacturing all happen in house, which is how BBS keeps its original equipment programs and its motorsport programs feeding each other.

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.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Product Inquiry

First Name (*required)

Last Name (*required)

Your E-Mail (*required)

Telephone Number (*required)

Country (*required)

Vehicle Year / Make / Model (*required)

Please Explain What do you want to do with your vehicle

Additional Information (optional)

I agree to the terms & conditions and privacy policy and to have Bulletproof Automotive LLC contact me for promotion, marketing and other purposes via email, phone or SMS message.

BBS FI-R Diamond Black Wheel (20×11.5 +40) for 4S Audi R8 and Lamborghini Huracán

Guaranteed Safe Checkout

BBS FI-R Diamond Black Wheel (20×11.5 +40) for 4S Audi R8 and Lamborghini Huracán

Forged Construction

Weight and Design

Fitment

Features

Specifications

Applications

Notes

Frequently Asked Questions

About BBS

Reviews