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Pair of two-piece floating rotors, complete with aluminium hats, to fit with the standard calipers.
Pair made up of the single part numbers: A1-307SL (left) and A1-307SR (right)
Fits: BMW 2-Series (G42), 3-Series (G20, G21), 5-Series (G30, G31), 6-Series (G32), 7-Series 730D / 740 (G11), 8-Series 840i / 840D (G15), M40 xDrive / M40D xDrive / X3 xDrive (G01), X5 (G05), X6 xDrive (G06), Z4 / M40i (G29) and more versions (see list below)
Before ordering check the compatibility list at the bottom of the page or ask us for advice.
SPENDING OVER €400?
GET FREE SHIPPING ACROSS THE EU*!
At M4Tuning, we reward you: enjoy free shipping across the European Union when your order exceeds €400!
*Some areas excluded: Malta, Canary Islands, Réunion, Ireland, Greece, and Cyprus.
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Girodisc A1-307
Pair of two-piece floating front brake rotors
Girodisc is an American company founded in 2003 in California and based since 2007 in Bellingham, Washington, where it designs and builds two-piece floating brake rotors for sports cars, supercars and track cars. The iron castings for the friction rings are poured in the USA and every part is machined and inspected in the Girodisc factory.
The cast iron friction ring has curved internal vanes that pump air outwards and bring temperatures down quickly, and it is joined to the 6061-T6 aluminium hat with floating steel drive pins. The ring can therefore expand freely with heat, self-centres between the pads and resists warping and judder even after many laps. Compared with the original rotor it also reduces unsprung weight.
They are the choice of many enthusiasts who take their car to track days: they replace the original rotors, including factory-fitted Brembo or other brands, and work with the standard calipers. The first purchase is the pair of complete rotors with hats; once the ring is worn, often after more than one season depending on use, only the pair of replacement rings is needed (D1 series for the front, D2 for the rear).
Diameter: 348 mm
Thickness: 36 mm
Minimum thickness: 34 mm
Height: 66,2 mm
Centre bore: 67 mm
Finish: curved slots
Construction: two-piece floating
Ring material: cast iron
Package contents: 2 complete rotors with hats (left A1-307SL and right A1-307SR)
Pair code: A1-307
Part numbers: A1-307SL, A1-307SR
Replacement rings: D1-307SL, D1-307SR
When the ring is worn, here is the matching pair of Girodisc D1-307 replacement rings. To complete the system see the Girodisc brake pads and all Girodisc rotors for BMW.
Availability: usually shipped within 3-4 working days from the European warehouse; codes not in stock are delivered within about 15 days. Contact us for up-to-date availability.
Compatibility:
BMW 220 2.0 Turbo (G42) 2021-present
BMW M240 3.0 Turbo xDrive (G42) 2021-present
BMW 220D 2.0 TD (G42) 2021-present
BMW 318D 2.0 TD (G20) 2019-2020
BMW 320 2.0 Twin Turbo (G20) 2019-present
BMW 320D 2.0 TD (G20) 2019-present
BMW 330 2.0 Twin Turbo (G20) 2019-present
BMW 330D 3.0 TD (G20) 2019-present
BMW 330e Hybrid 2.0 Twin Turbo (G20) 2019-present
BMW M340 3.0 Twin Turbo (G20) 2019-2022
BMW 318D 2.0 TD (G21) 2019-present
BMW 320 2.0 Twin Turbo (G21) 2019-present
BMW 320D 2.0 TD (G21) 2019-present
BMW 330 2.0 Twin Turbo (G21) 2019-present
BMW 330D 3.0 TD (G21) 2019-present
BMW 330e Hybrid 2.0 Twin Turbo (G21) 2019-present
BMW M340 3.0 Twin Turbo (G21) 2019-present
BMW 525D 2.0 TD (G30) 2017-2023
BMW 530 2.0 Turbo (G30) 2017-2023
BMW 530E Hybrid 2.0 Turbo (G30) 2017-2023
BMW 525D 2.0 TD (G31) 2017-2024
BMW 530 2.0 Turbo (G31) 2017-2024
BMW 530D 3.0 TD (G31) 2017-2024
BMW 540 3.0 Turbo (G31) 2017-2024
BMW 540D 3.0 Twin TD (G31) 2017-2024
BMW 630 2.0 Turbo (G32) 2017-2023
BMW 630D 3.0 TD (G32) 2017-2023
BMW 640 3.0 Turbo (G32) 2017-2023
BMW 640D 3.0 TD (G32) 2017-2023
BMW 730D 3.0 TD (G11) 2015-2019
BMW 740 3.0 Turbo (G11) 2015-2019
BMW 840i 3.0 Turbo (G15) 2019-2025
BMW 840D 3.0 TD (G15) 2018-2025
BMW X3 M40 xDrive 3.0 Turbo (G01) 2017-2024
BMW X3 M40D xDrive 3.0 TD (G01) 2018-2024
BMW X3 xDrive 2.0 TD (20D) (G01) 2017-2024
BMW X3 xDrive 2.0 TD (25D) (G01) 2018-2019
BMW X3 xDrive 2.0 Turbo (20) (G01) 2017-2024
BMW X3 xDrive 2.0 Turbo (30) (G01) 2017-2024
BMW X3 xDrive 3.0 TD (30D) (G01) 2017-2024
BMW X5 2.0 TD (25D) (G05) 2019-2023
BMW X5 3.0 TD (30D) (G05) 2018-2026
BMW X5 3.0 Turbo (40) (G05) 2018-2026
BMW X6 xDrive 3.0 TD (30d) (G06) 2019-present
BMW X6 xDrive 3.0 Turbo (G06) 2019-present
BMW Z4 2.0 Twin Turbo (20) (G29) 2019-2026
BMW Z4 2.0 Twin Turbo (30) (G29) 2019-2026
BMW Z4 M40i 3.0 Twin Turbo (G29) 2019-2026
Toyota Supra GR 2.0 Turbo (A90) 2020-2026
Toyota Supra GR 3.0 Turbo (A90) 2019-2026
BMW 218 2.0 Turbo (G42) 2022-present
BMW 230 2.0 Turbo (G42) 2022-present
BMW M340 3.0 Twin Turbo (G20) 2022-present
List supplied by the European Girodisc distributor. If your car is not listed or you have any doubt, contact us before ordering.
Pair of two-piece floating rotors, complete with aluminium hats, to fit with the standard calipers.
Pair made up of the single part numbers: A1-307SL (left) and A1-307SR (right)
Fits: BMW 2-Series (G42), 3-Series (G20, G21), 5-Series (G30, G31), 6-Series (G32), 7-Series 730D / 740 (G11), 8-Series 840i / 840D (G15), M40 xDrive / M40D xDrive / X3 xDrive (G01), X5 (G05), X6 xDrive (G06), Z4 / M40i (G29) and more versions (see list below)
Before ordering check the compatibility list at the bottom of the page or ask us for advice.
SPENDING OVER €400?
GET FREE SHIPPING ACROSS THE EU*!
At M4Tuning, we reward you: enjoy free shipping across the European Union when your order exceeds €400!
*Some areas excluded: Malta, Canary Islands, Réunion, Ireland, Greece, and Cyprus.PAY IN EASY INSTALLMENTS WITH KLARNA
Select Klarna at checkout and split your purchase into interest-free payments, with no additional costs.
*Subject to approval by Klarna at the time of checkout.| FOLLOW US ON INSTAGRAM | FOLLOW US ON FACEBOOK |
| | |
WE SHIP EVERY ORDER DIRECTLY FROM OUR WAREHOUSE IN ITALY, USING ONLY SELECTED EXPRESS COURIERS.
NOT ALL ITEMS ARE IMMEDIATELY AVAILABLE. ASK US FOR CURRENT STOCK STATUS.
