# Tire Size Converter MCP for AI Agents MCP

> The Tire Size Converter calculates every critical dimension for vehicle geometry. You can quickly determine physical tire profiles from standard metric notations, check if new tires will throw off your speedometer reading, and assess potential mechanical rubbing risks before you install a size change.

## Overview
- **Category:** utilities
- **Price:** Free
- **Endpoint:** https://edge.vinkius.com/vk_preview_NNFLccAVu7Xsy2jFByzszkRgrWPfCRQNyas3MxTI/mcp
- **Tags:** tires, automotive-tools, geometry, speedometer, clearance

## Description

Changing tires is complicated. It's not just about matching the size; it’s about safety, clearance, and accuracy. This MCP handles all that complex geometry for you. You feed in a tire specification—like 265/70R17—and get back a complete profile: width, sidewall height, diameter, circumference, and revs per mile.

But the calculation doesn't stop there. If swapping to a different size, your agent automatically figures out the resulting speedometer error, telling you exactly how far off your dashboard reading will be. It also runs an evaluation to check for mechanical interference risks, so you know if those new tires are gonna rub against your suspension or fender. For professionals dealing with vehicle specs, having this data instantly available through Vinkius makes planning upgrades simple and safe.

## Tools

### calculate_speedometer_deviation
Calculates speedometer error when changing tire sizes

### calculate_tire_dimensions
Returns width, sidewall height, diameter, circumference, and revs per mile.

Calculates physical dimensions of a tire

### evaluate_clearance_compatibility
Checks for potential tire rubbing/interference

## Prompt Examples

**Prompt:** 
```
What are the dimensions for a 265/70R17 tire?
```

**Response:** 
```
**Tire Profile Report:**
*   **Width:** 265mm (10.43in)
*   **Sidewall Height:** 185.5mm (7.30in)
*   **Overall Diameter:** 773.1mm (30.44in)
*   **Circumference:** 2,089mm
*   **Revs Per Mile:** 620

This profile is standard for a vehicle in this class.
```

**Prompt:** 
```
I'm going from 265/70R17 to a 285/75R18. What are the risks?
```

**Response:** 
```
**⚠️ WARNING: Potential Issues Detected**

*   **Speedometer Error:** Approximately -3.45%. Your actual speed will be slightly higher than what your dash reads.
*   **Clearance Compatibility:** High Risk of mechanical interference. The diameter delta is significant, and you must check suspension travel before installing this size.

*Recommendation: Consider a smaller profile or professional alignment.*
```

**Prompt:** 
```
Is a tire with 780mm diameter safe if my current is 720mm and the limit is 25mm?
```

**Response:** 
```
**✅ Clearance Check Results**

*   **Diameter Delta:** 60mm.
*   **Threshold Limit:** 25mm.
*   **Status:** **FAIL. High Risk of mechanical interference.** 

The difference greatly exceeds your threshold, meaning installation is not recommended without structural modification.
```

## Capabilities

### Determine Physical Tire Dimensions
Calculates the full physical profile of any tire size, giving dimensions like diameter and circumference.

### Assess Speedometer Error
Compares current and proposed tire sizes to calculate the exact percentage deviation in your vehicle's speedometer reading.

### Check for Mechanical Clearance Risks
Evaluates if a specific size change will cause potential interference or rubbing against mechanical parts.

## Use Cases

### Upgrading tires on a classic car
A user needs to put wider, beefier tires on an older vehicle. They ask their agent about switching from 245/70R16 to 285/70R17. The MCP uses `calculate_tire_dimensions` for both sizes and then runs a clearance check, warning the user that the diameter increase might put stress on the suspension.

### Maintaining fleet vehicle compliance
A fleet manager needs to verify if all 50 vans in the lot are running tires with consistent dimensions. The agent uses `calculate_tire_dimensions` repeatedly for various sizes and generates a report showing which vehicles need standardized replacement parts.

### Diagnosing speed gauge issues
The owner notices their trip odometer seems off after installing new tires. They ask the agent to compare the old tire size to the new one. The MCP uses `calculate_speedometer_deviation` and reports a specific percentage error, telling them if they need to recalibrate or just know how far off they are.

### Pre-sale vehicle inspection
A mechanic is assessing a used car for sale. They check the current tire size against standard fitment guidelines using `calculate_tire_dimensions`. This ensures that any advertised mileage or performance claims based on wheel geometry are accurate.

## Benefits

- Avoid unsafe installations. Use `evaluate_clearance_compatibility` to catch potential wheel or suspension rubbing risks before you even lift the car.
- Stop guessing about speed. The `calculate_speedometer_deviation` tool tells you exactly if your speedometer reading will be inaccurate after a tire swap.
- Get full specs instantly. Use `calculate_tire_dimensions` to pull width, sidewall height, diameter, and circumference from any metric notation, saving minutes of manual calculation time.
- Reduce risk and improve safety compliance across the board. You get quantified data points for every dimension check.
- Consolidate complex calculations into one place. Instead of jumping between engineering guides and spreadsheets, your agent handles all the math instantly.

## How It Works

The bottom line is that you get an instant, data-backed safety assessment for complex tire upgrades without doing math or checking multiple manual charts.

1. Start by giving the MCP the tire specifications you are working with, either the current size or a proposed replacement.
2. The tool runs multiple geometry calculations, determining dimensions and comparing them against your existing setup to spot differences in speed readings and physical fit.
3. You receive a clear report detailing the calculated profile, the resulting speedometer deviation percentage, and any identified mechanical rubbing risks.

## Frequently Asked Questions

**How does the Tire Size Converter MCP tell me if my speedometer is off?**
It calculates the percentage deviation between your old and new tire sizes. This tells you exactly how much faster or slower your car will report its speed, so you know if you need to recalibrate after an upgrade.

**What are the mechanical risks I should check for with this MCP?**
The MCP runs a clearance test that checks potential interference points. It tells you if a new tire size will rub against your fenders, suspension, or other parts when turning or accelerating.

**Can the Tire Size Converter help me figure out basic dimensions?**
Yes, it takes any standard metric tire code (like 265/70R17) and returns its full profile: width, sidewall height, diameter, circumference, and revs per mile.

**I'm a mechanic. Can I use this MCP for fleet management checks?**
Absolutely. You can input multiple tire sizes to verify consistency across an entire fleet or job site, ensuring every vehicle meets required dimensional standards and safety guidelines.

**Does the Tire Size Converter only work with metric measurements?**
While it accepts complex metric notation for calculation, it converts all resulting dimensions into both millimeters and inches for easy use in North America.