Mini-Z Wheel Offset Calculator
Fitting an AutoScale body to your Kyosho Mini-Z? Work out the exact wheel offset to run when you change wheel width — front and rear — so the wheels sit right and don't rub.
The fitment rule
Every AutoScale body lists a recommended wheel width + offset. Add them to get a target total. To run a different width, hold that total constant — change the offset the opposite way. This calculator does that for you: enter what the body calls for, pick the width you want, and it returns the offset to buy.
Front
The body recommends
Target total = 10 mm (8.5 + 1.5)
I want to run
Run these wheels:
Narrow 1.5
Exact match — this keeps the same fit.
Rear
The body recommends
Target total = 11 mm (11 + 0)
I want to run
Run these wheels:
Wide 0
Exact match — this keeps the same fit.
Wheelbase & motor-mount reference
Offset makes the wheels sit right; wheelbase is what makes the body physically fit. Match your motor mount / rear pod to the body's wheelbase first.
| Code | Wheelbase | Typical mount | Character |
|---|---|---|---|
| S | 86 mm | RM, HM | Shortest — twitchy, hardest to drive |
| M | 90 mm | RM, HM | Short, nimble |
| L | 94 mm | RM (also HM, MM2) | Common scale wheelbase |
| LL | 98 mm | MM (also MML, MM2) | Most stable — beginner-friendly |
| 3L | 102 mm | MM / LM (also MML, MM2) | Very stable, slower to rotate |
| 4L | 106 mm | MM (also MML) | Longest — niche |
Heads up: the mount letters (RM / MM / LM / HM) are used inconsistently — they describe either the motor's front-to-back position or its height, and even sources disagree on what some stand for. Trust the wheelbase in mm, not the letter. Full guide to Mini-Z rear pods, wheelbase & fitting a body →
Changing pods? The exact parts, by pod type
When a body needs a different wheelbase, you're really changing the rear pod. These are Kyosho's own part numbers for what makes up each RWD pod — from their official pod reference cards.
| Pod | Wheelbases | Diff gear | Motor case | Rear spring |
|---|---|---|---|---|
| RM | S / M / L (changeable) | MZ207 | MZ216B | MZW213 (20 mm) |
| MM | LL (98 mm) | MZ207 | MZ215B | MZW202 (23 mm) |
| LM | 3L (102 mm) | MZ302 | MZ305B | MZW202 (23 mm) |
| HM | S / M / L (changeable) | MZ207 | MZ156B | MZW213 (20 mm) |
All four pods share the same suspension-parts set: MZ403B.
AWD (MA-020) conversions
Part-number links go to AMain search and are affiliate links (ad). Unlinked part numbers aren't stocked there.
How to use this calculator
- • Find your AutoScale body's recommended width + offset (printed on the box/manual, e.g. "F: Narrow +1.5 / R: Wide −1.0").
- • Enter those for the front and rear panels above.
- • Pick the wheel width you actually want to run.
- • The calculator returns the offset to buy, and flags it if no factory wheel reaches that fit.
- • Wheel widths: narrow = 8.5 mm, wide = 11 mm. Available offsets — narrow: 0 / 1.0 / 1.5 / 2.0 / 2.5; wide: −1.0 / 0 / 1.0 / 2.0 / 3.0.
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