Existing
Desired
ResetExample values

Tire calculation and/or rim calculation

Tire size
Warning
1: Existing tire / rim
Tire width?
105 - 405 mm
Tire height
25 - 100 %
Tire height?
20 - 55 inch
Tire width
5 - 15 inch
Diameter
5 - 25 inch
Rim width?
3 - 15 inch
Offset
-165 - 165 mm
Spacer
0 - 150 mm
2: Desired tire / rim
Tire width?
105 - 405 mm
Tire height
25 - 100 %
Tire height?
20 - 55 inch
Tire width
5 - 15 inch
Diameter
5 - 25 inch
Rim width?
3 - 15 inch
Offset
-165 - 165 mm
Spacer
0 - 150 mm
1: Enter values
Information
INFORMATION: The ratio of tire width to rim width does not correspond to the standard!
Warning
ATTENTION: Entries (highlighted in red) are out of range! Please correct your entries!

Results

 Existing
 Desired
Tire circumference
?
Rolling circumference
?
Tire height (sidewall)
?
Tire diameter
?
Rim size
?
Rim width
?
Poke (Outer Edge)
?
Inset (Inner Edge)
?
Show results in

Comparison & differences

Circumferential difference
Difference in rolling circumference
?
Speedometer display at real 100 mph or km/h
Speedometer at 100 km/h or mph
?
The following differences also arise:
Difference in ground clearance
?
Change to the outer edge of the rim per side
?
Change to the inner edge of the rim per side
?
Placeholder

Graphic display appears after entering values

The strut illustration is for illustrative purposes only
2: Read the result

Note the difference in rolling circumference:

Rolling circumferences are generally approved in the range +1.5% und -2.5% g. Please check with the responsible inspector beforehand.

Speed deviation outside the norm:

In EU countries, the speedometer may display a maximum of +10 % + 4 km/h and no km/h less than the actual speed driven.
See regulation No 39 of the Economic Commission for Europe of the United Nations (UN/ECE): Point 5.4
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Exclusive | Alps Android

Most ALPS devices are not certified by Google, meaning they lack .

They run Android, but frequently use outdated, modified, or unverified firmware. 2. Key Characteristics of ALPS Android Tablets and Phones

They are suitable for simple tasks like basic web browsing, YouTube playback, or light educational apps for kids.

Most users "discover" Alps when checking their device's hardware info or recovery menus. It is typically an OEM (Original Equipment Manufacturer) platform that uses alps android

Despite advertised specs, they are generally slow and incapable of heavy multitasking or gaming. Tips for Choosing Wisely

MediaTek does not sell phones to consumers. Instead, they sell their processors and this baseline "Alps" software to Original Design Manufacturers (ODMs) and Original Equipment Manufacturers (OEMs). These factories use the Alps blueprint to mass-produce cheap, unbranded, or white-label devices.

wrapper around native C++ libraries, allowing Java or Kotlin developers to interact with complex audio hardware. Media Segment Processing : It is specifically built to process Most ALPS devices are not certified by Google,

When dealing with an ALPS Android device, the user experience can be vastly different from a major brand. 1. Hardware Discrepancies

: Many wireless peripherals use a simplified version of this stack for connectivity. The Risks of "Generic" Android

The impact of a specific version or project like "Alps Android" would depend on its official release and how it's received by both the developer community and end-users. Generally, Android updates are welcomed for their new features, performance improvements, and security enhancements. Key Characteristics of ALPS Android Tablets and Phones

: The "no-name" double-DIN head units popular for aftermarket car upgrades almost exclusively run on ALPS-based boards.

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Despite powering millions of devices worldwide, Alps is not a brand you can find on a store shelf. It is a foundational component of the white-label technology market. What is Alps Android?

ALPS devices often ship with outdated versions of Android. More importantly, they may lack Google Play Certification, meaning some apps might not work properly. Security updates are generally non-existent, leaving the device vulnerable. 3. Build Quality

Feedback
Tire diameter
Tire diameter:
Diameter of the tire.
Rolling circumference
Calculation incl. load from the vehicle and at a speed of approx. 60 km/h (40 mph) (tire circumference * 0.97).
Tire circumference
Purely calculated circumference of the tire without mounting on a rim and without load.
Tire height
Height of the sidewall of the tire.
Rim size
Rim size:
Diameter of the rim.
Rim width
Rim width:
Width of the rim.
Poke (Outer Edge)
Distance between the OUTER rim edge and the contact surface of the brake disk or brake drum.
Inset (Inner Edge)
Distance between the INNER rim edge and the contact surface of the brake disk or brake drum.
Change in ground clearance
Value by which the vehicle is higher or lower with the new tires.
Changing the rolling circumference. If the deviation is too high, it may be necessary to adjust the speedometer.
Displayed speedometer value with desired tires, which corresponds to the displayed 100 mph or km/h with existing tires.
Change outer edge per side
Distance between the outer surfaces of the rims. The rims in the wheel housing move inwards or outwards by this value.
Change inside edge per side
Distance between the inner surfaces of the rims. The ET (offset) has an influence on this value.
Tire info
Tire info
Tire info
Tire info
Tire info
Rim info
Tire info
Tire info
Tire info
Tire info
Tire info
Rim info