This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.
助手帮-胎轮计
Master your vehicle's performance with precision mathematical models. Compare specs, calculate speedometer error, and ensure a safe, rub-free fitment for your next upgrade.
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1Latest Version
1.1Size
22.0 MBFirst Released
Feb 24, 2026Master Your Fitment with Professional Precision
Whether you are upgrading for the track, the trail, or the street, our advanced tire calculator ensures your modifications are safe, accurate, and high-performing.
Advanced Spec Comparison
Instantly compare diameter, width, and sidewall changes between your current setup and potential upgrades with high-precision mathematical models.
Speedometer & Safety Check
Calculate real-world speedometer deviation and ensure your new tires maintain the correct clearance to avoid mechanical wear and safety risks.
The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.
App Store
Screenshots
Tire and wheel calculator interface for comparing original and target wheel specifications
History page of the tire and wheel calculator app showing various tire size comparison results and speedometer error warnings.
Informational screen of the tire calculator app explaining wheel specifications and performance metrics
Description
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This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.