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What's the largest size tire my GoJak will accept?
This guide outlines the maximum tire size compatibility for each GoJak model. Each unit is designed to safely accommodate a specific maximum tire width and overall tire diameter, ensuring optimal function, safety, and clearance during operation.
GoJak Tire Compatibility Reference Guide (by Series)
This guide outlines the maximum tire size compatibility for each GoJak model.
Each unit is designed to safely accommodate a specific maximum tire width and overall tire diameter, ensuring optimal performance, safety, and clearance.
Tire examples are provided in both metric (ISO) and inch (SAE) formats to help identify comparable tire sizes across vehicle types and applications.
❓ Frequently Asked Questions
Q: Which GoJak fits my tires?
Each GoJak model is built for specific tire widths and diameters. Refer to the chart below to match your tire’s section width and overall diameter to the correct GoJak model. Choose a tire that’s slightly smaller (about 0.5–1 inch) than the maximum spec for best performance.
Q: Do tire tread patterns affect fitment?
Yes. Aggressive off-road or deep tread tires can increase effective width and interfere with roller clearance and function. Smooth or moderate tread patterns roll more easily in the cradle.
Q: Does tire pressure matter?
Definitely. A low-pressure (“flatter”) tire will appear wider and also not apply the appropriate counter force to the rollers, which makes it harder to cycle the GoJak. Keep tires inflated to operating pressure for accurate fit and easier rolling.
Q: Can I use a GoJak with non-automotive tires (e.g., aircraft or ATV)?
Yes, within the size and load limits shown. Check that the tire’s width and diameter fall within the listed maximums and that the weight does not exceed each unit’s load rating.
⚙️ Pro Series
| Model | Max Load (per unit) | Max Load (4 units) | Max Tire Width | Max Tire Diameter | Example Tire |
|---|---|---|---|---|---|
| G5211 |
1,300 lb (590 kg) |
5,200 lb (2,360 kg) |
11 in (280 mm) |
36 in (915 mm) |
285/60R18 |
| G6313 |
1,575 lb (715 kg) |
6,300 lb (2,860 kg) |
13 in (330 mm) |
36 in (915 mm) |
330/55R18 |
🏎 Performance Series
| Model | Max Load (per unit) | Max Load (4 units) | Max Tire Width | Max Tire Diameter | Example Tire |
|---|---|---|---|---|---|
| G4520 |
1,125 lb (510 kg) |
4,500 lb (2,040 kg) |
20 in (510 mm) |
36 in (915 mm) |
495/40R20 |
| G6520 |
1,800 lb (815 kg) |
7,200 lb (3,265 kg) |
20 in (510 mm) |
36 in (915 mm) |
495/40R20 |
🏋️♂️ HD Series
| Model | Max Load (per unit) | Max Load (4 units) | Max Tire Width | Max Tire Diameter | Example Tire |
|---|---|---|---|---|---|
| G7016 |
1,750 lb (795 kg) |
7,000 lb (3,175 kg) |
16 in (405 mm) |
36 in (915 mm) |
395/65R17
|
| G9516 |
2,375 lb (1,075 kg) |
9,500 lb (4,310 kg) |
16 in 405 mm) |
36 in (915 mm) |
405/55R17
|
🛫 Aviation Series
| Model | Max Load (per unit) | Max Load (4 units) | Max Tire Width | Max Tire Diameter | Example Tire |
|---|---|---|---|---|---|
| G4107 |
1,025 lb (465 kg) |
4,100 lb (1,860 kg) |
7 in (180 mm) |
32 in (815 mm) |
185/70R16 |
⚠️ Important Considerations
Several variables can impact the actual maximum usable tire size and ease of operation:
-
Tire Pressure: Lower pressure (“flatter”) tires reduce effective diameter and make cycling the unit harder.
-
Tread Profile: Aggressive off-road or deep tread tires can increase section width and interfere with roller clearance.
-
Rim Offset & Width: These can change the true sidewall bulge and overall width.
-
Vehicle Weight: Heavy loads deform tires and may affect rolling and clearance.
💡 For best usability, select tires approximately 0.5–1.0″ smaller than the stated maximum width and diameter.
📘 Summary
Each GoJak model is engineered to handle specific tire dimensions safely and efficiently.
The chart above represents maximum design limits under ideal conditions — actual results may vary based on tire design, inflation, and tread profile.
For best performance:
-
Choose tires slightly narrower than the listed maximums.
-
Maintain proper inflation for easier rolling and lifting.
-
Avoid deep off-road treads for smooth shop floor use.
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