What should be the minimum tread depth for the steering wheel tires of a truck?
2 Answers
The tread depth of the steering wheel tires for a truck should be greater than or equal to 3.2mm. Here are the relevant details: 1. Tread depth standards for different vehicle types: The tread depth of passenger cars, motorcycles, and trailer tires should be greater than or equal to 1.6mm; the tread depth of steering wheel tires for other motor vehicles should be greater than or equal to 3.2mm; the tread depth of other tires should be greater than or equal to 1.6mm, and the tire wear indicators should be visible. 2. Registration inspection considerations: a) Special school buses should be equipped with tubeless radial tires; b) Vehicles transporting hazardous goods and other buses with a length greater than 9m should be equipped with radial tires; c) Small and micro passenger vehicles using small-sized spare tires should have a permanently affixed and clearly visible label near the spare tire (or another appropriate location) reminding the driver of the correct use of the spare tire, with the label's instructions including Chinese text.
As an experienced truck driver, I fully understand the importance of maintaining a minimum tread depth of 1.6mm on steering tires. This isn't just a regulatory requirement for annual inspections - it's a critical safety issue. I've witnessed cases in our fleet where drivers neglected this, resulting in shallow treads that caused skidding and loss of control during turns on wet roads, leading to minor accidents. Since then, I've developed the habit of checking my tires monthly, using a tread depth gauge to ensure they're above 1.6mm before hitting the road. Insufficient tread depth compromises water drainage, increases braking distance in rainy conditions, and makes steering unstable. I advise new drivers to perform regular maintenance - a simple measuring tool is affordable and easy to use. Don't cut corners on this crucial safety measure. Remember: safety comes first - never compromise when it comes to road safety.
