Bridgestone · Potenza Sport A/S · 255/40R18
Bridgestone Potenza Sport A/S 255/40R18 99Y
XLThe size 255/40R18 means a tire 255 mm wide, with a sidewall 40% as tall as it is wide (about 102 mm), built for 18-inch wheels. Load index 99 means each tire can carry up to 775 kg (1,709 lb), or 3,100 kg for a set of four. Speed rating Y means it is certified for sustained speeds up to 300 km/h (186 mph). It is an XL (extra load) tire, reinforced to carry more weight at higher inflation pressure.
$275.00 per tire
Set of 4: $1,100.00 before tax
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SKU BS 011904 · GTIN 092971356613
Specifications
| Size | 255/40R18 |
|---|---|
| Load index | 99 — 775 kg (1,709 lb) per tire |
| Speed rating | Y — 300 km/h (186 mph) |
| Season | All-season |
| 3PMS (severe snow) | No |
| XL | Yes |
| Run-flat | No |
| Studdable | No |
| UTQG | 500 AA A |
| Tread depth (new) | 10/32″ (7.9 mm) |
| Overall diameter | 661 mm (26.0″) |
| Revolutions per km | 482 |
| Tire type | Passenger |
About the Bridgestone Potenza Sport A/S
The Bridgestone Potenza Sport A/S is an ultra-high-performance all-season tire for sports sedans, coupes and performance crossovers, offering sharp handling with a treadwear warranty of up to 80,000 km.
Vehicles that use 255/40R18
- BMW Z4 2019–2024
- Toyota Supra 2021–2024
- Mercedes-Benz C63 2017–2021
- BMW M4 2015–2020
- Mercedes-Benz CLS550 2007–2018
- Mercedes-Benz SL550 2007–2018
- BMW M3 2015–2018
- Mercedes-Benz CLS400 2016–2017
- Mercedes-Benz SL450 2017
- Mercedes-Benz SL400 2016
- Audi S6 2007–2011
- Mercedes-Benz E63 2010–2011
- Mercedes-Benz SL600 2004–2010
- Mercedes-Benz SL55 2003–2007
- Mercedes-Benz SL500 2004–2006
- Ferrari 575M 2002–2006
- Mercedes-Benz CLS500 2006
- Mercedes-Benz CLS55 2006
Original-equipment fitments from our vehicle database. Confirm the size on your door placard before ordering.
Other Bridgestone Potenza Sport A/S sizes
- 205/55R16 94W XL
- 205/45R17 88W XL
- 205/50R17 93W XL
- 215/45R17 91W XL
- 215/50R17 95W XL
- 215/55R17 94W
- 225/45R17 94W XL
- 225/50R17 98W XL
- 225/55R17 97W
- 235/45R17 97W XL
- 245/40R17 91W
- 245/45R17 99W XL
- 215/40R18 89Y XL
- 225/40R18 92Y XL
- 225/40R18 92Y XL
- 225/45R18 95W XL
- 225/50R18 95W
- 235/40R18 95Y XL
- 235/45R18 98W XL
- 235/50R18 97W
- 235/55R18 104W XL
- 235/60R18 107W XL
- 245/40R18 97Y XL
- 245/45R18 100W XL
- 245/50R18 104W XL
- 245/55R18 103W
- 255/35R18 94Y XL
- 225/40R19 93Y XL
- 225/45R19 96W XL
- 235/35R19 91Y XL
- 235/40R19 96Y XL
- 235/55R19 105Y XL
- 245/35R19 93Y XL
- 245/40R19 98Y XL
- 245/45R19 102Y XL
- 255/35R19 96Y XL
- 255/40R19 100Y XL
- 235/35R20 92Y XL
- 245/35R20 95Y XL
- 245/40R20 99Y XL
- 245/45R20 103Y XL
- 255/35R20 97Y XL
- 255/45R20 105Y XL
- 255/50R20 109Y XL
- 255/55R20 110Y XL
- 265/40R22 106Y XL
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Questions about the Bridgestone Potenza Sport A/S 255/40R18
Which vehicles use 255/40R18 tires?
255/40R18 is original equipment on vehicles including the BMW Z4 (2019–2024), Toyota Supra (2021–2024), Mercedes-Benz C63 (2017–2021), BMW M4 (2015–2020), Mercedes-Benz CLS550 (2007–2018), Mercedes-Benz SL550 (2007–2018). Check the placard on your driver’s door jamb to confirm your size.
What does 99Y mean on the Bridgestone Potenza Sport A/S 255/40R18?
The load index 99 means each tire carries up to 775 kg, and speed rating Y means it is rated for up to 300 km/h. Choose a load index and speed rating at least equal to your vehicle’s placard.
Can I use the Bridgestone Potenza Sport A/S 255/40R18 in winter?
It is an all-season tire without the 3PMS symbol, so it is not a winter tire. In Quebec it cannot be used from December 1 to March 15, and in Ontario we recommend a winter or all-weather tire for snow.
How fast is delivery and is it free?
Delivery is free to any address in Ontario or Quebec, usually within 1 to 3 business days. You can also pick up your order at 321 Rexdale Blvd, Etobicoke, Monday to Friday from 9 a.m. to 5 p.m.