2021 Subaru Crosstrek — Tire Size & Pressure

Quick answer

• OEM Tire Size: 225/60R17 or 225/55R18
• Recommended Cold Tire Pressure (Door Placard): 33 PSI (front and rear)
• Bolt Pattern: 5x100mm
• Wheel Size: 17x7J or 18x7J
• Load Index/Speed Rating: 99H (225/60R17) or 98H (225/55R18)
• Spare Tire Size: T145/80D17 (temporary spare)
• TPMS Frequency: 315 MHz

Tire sizes by trim

Recommended replacement tires

The 2021 Subaru Crosstrek is a versatile compact SUV, and its tire selection can significantly impact its performance, comfort, and off-road capability. Here are a few popular replacement tire options across different price tiers, keeping in mind the Crosstrek's common uses:

• Michelin CrossClimate2 (Premium): These all-weather touring tires are an excellent choice for drivers who want superior grip in all conditions, including light snow, without needing to swap to dedicated winter tires. They offer a comfortable ride and long tread life. Expect to pay around $200-$250 per tire.

• Falken Wildpeak A/T Trail (Mid-Range): For Crosstrek owners who venture off paved roads, the Wildpeak A/T Trail is a fantastic option. It's an all-terrain tire designed specifically for crossovers and delivers a great balance of off-road traction and on-road manners. These are more aggressive than standard all-seasons but still comfortable for daily driving. Prices typically range from $150-$200 per tire.

• General AltiMAX RT43 (Value): If you're looking for a reliable all-season tire that offers good performance at a more budget-friendly price, the General AltiMAX RT43 is a solid contender. It delivers a quiet, comfortable ride and dependable all-season traction. These often fall in the $120-$170 range per tire.

When to inflate to max load psi

Unlike heavy-duty trucks, the 2021 Subaru Crosstrek does not have a "max load psi" for its tires beyond the recommended cold tire pressure found on the door placard. The recommended 33 PSI for both front and rear tires is designed to provide the optimal balance of ride comfort, handling, and fuel efficiency under normal driving conditions and with typical passenger and cargo loads. Always adhere to the pressure listed on your vehicle's door jamb sticker for safe and effective operation.

Lug nut torque & pattern

The 2021 Subaru Crosstrek utilizes a 5x100mm bolt pattern, which means there are 5 lug nuts, and the circle formed by the centers of these lugs has a diameter of 100mm. When tightening the lug nuts after a tire rotation or tire change, it is crucial to use a torque wrench to ensure they are properly secured. The lug nut torque specification for all 2021 Subaru Crosstrek models is 89.4 ft-lbs (121 Nm). Always tighten lug nuts in a star or criss-cross pattern to ensure even pressure and proper seating of the wheel against the hub.

Common tire issues for this vehicle

While the Subaru Crosstrek is a reliable vehicle, some common tire-related issues owners might encounter include:

• Uneven Wear: Misalignment, improper tire pressure, or worn suspension components can lead to uneven tire wear, such as feathering, cupping, or wear on one side of the tread. Regular rotations and alignments are key to preventing this.
• Road Noise: Some all-terrain or more aggressive all-season tires chosen for their off-road capability might produce more road noise than the OEM tires, particularly at highway speeds. If you notice an increase in noise, it could also indicate uneven wear or a bearing issue.
• TPMS Sensor Malfunctions: The TPMS (Tire Pressure Monitoring System) sensors operate at 315 MHz. While generally reliable, damage during tire changes or battery degradation over time can cause the sensor to malfunction, triggering the TPMS warning light. If the light comes on, it's best to check your tire pressures manually and then have a professional diagnose the system if the light persists.
• Punctures and Sidewall Damage: Due to the Crosstrek's adventurous nature, owners might be more prone to encountering obstacles that can cause punctures or sidewall damage, especially on unpaved roads. Always inspect your tires after off-road excursions.

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