245/40 R21 Tires

The following tires have been reviewed in 245/40 R21.

Review Your Tires >>

Tire Reviewed Dry Grip Wet Grip Feedback Handling Wear Comfort
Hankook Ventus S1 Evo Z K129 (4) 93% 80% 88% 85% 50% 77%
Bridgestone Alenza 001 (31) 83% 75% 70% 77% 70% 57%

245/40 21 Tire Review Highlights

Bridgestone Alenza 001 rated 53% while driving a BMW X3m40i
Driving on a combination of roads for 25000 spirited miles
The Bridgestone Alenza RFT in 245/40R21 front and 275/35R21 rear is a very average tire. It’s okay but not great. Grip is acceptable in dry conditions, but in the wet it can slip when pushed, although the AWD system helps manage it. Ride comfort is harsh, with noticeable thumping over bumps and poor handling of rough roads. This is typical of run-flats, but still disappointing at this price point. Feedback and progression near the grip limit are minimal, making spirited driving feel numb.

Wear has been reasonable. After around 40,000 km, the fronts have about 5 mm of tread left while the rears are down to 2 mm. The front tires show noticeable outer edge wear, likely from SUV weight transfer during cornering. Running higher-than-recommended front pressures helps mitigate this.

Overall, it’s an expensive tire with no standout qualities. The limited run-flat alternatives in this size make that more frustrating.
tire reviewed on 2025-08-05 02:12:57
Hankook Ventus S1 Evo Z K129 rated 90% while driving a BMW X3m
Driving on mostly country roads for 4000 spirited miles
much better than the continentals that came with the car, cheaper than michelin pilot sport 4
tire reviewed on 2022-12-11 06:04:02
Use this tire size? Why not add your own tire review and help other owners pick the right tire