25x12.00-9 Knobby ATV Quad Tyre - Parnells - P318
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Full details
The Parnells 25x12.00-9 Wanda P318 is an ideal replacement tyre and rim assembly for ATV and quad bike enthusiasts who demand reliability across diverse landscapes. It provides exceptional traction through its aggressive knobby tread pattern and robust construction, making it perfect for off-road work and trail riding. While its 4-ply build is highly durable, users should note that the non-directional tread design prioritizes versatility over specialized performance, requiring careful attention to stud compatibility during installation.
All features
| Model Part Number | P318 |
|---|---|
| Brand | Parnells |
Extended Product Information
FAQs
Is this tyre suitable for highway speeds?
Yes, the tyre is E-marked and road legal, but always adhere to your vehicle's rated speed limits for safety.
Can I use this on a trailer?
While designed for ATVs, it can be used on trailers provided the hub bolt pattern and load ratings are compatible with your setup.
Does this require a tube?
No, this is a tubeless tyre assembly. It is designed to be run without an inner tube.
What is the total diameter of the wheel?
The overall diameter of the wheel is 635mm.
Can I mount this in either direction?
Yes, because the tread pattern is non-directional, it does not require a specific rotation orientation.
Will this fit an M12 stud?
No, the stud holes are 12.5mm, which are specifically designed for M10 or 3/8-inch studs.
Troubleshooting
Wheel feels wobbly after installation
Ensure the 67mm centre hole is fully seated on the hub and the lug nuts are tightened in a star pattern to distribute pressure evenly.
Difficulty mounting onto the hub
Verify that your hub is exactly 4-inch PCD; if the studs do not align with the 12.5mm holes, the rim is incompatible with your specific ATV model.
Tire losing air pressure
Check the bead seat for dirt or debris trapped during installation, or inspect the valve stem for a proper seal.
Pros and Cons
Pros
- Road legal with E-marking certification
- High-grip tread pattern for varied surfaces
- Pre-assembled on a durable steel rim
- Industry-standard 4-inch PCD compatibility
- Durable 4-ply carcass for heavy-duty use
Cons
- Requires specific 4-inch PCD hub compatibility
- Stud hole size limited to M10 or 3/8-inch
- Non-directional pattern may have different handling characteristics than directional tires
Setup, Compatibility & Care
To ensure proper installation, verify that your ATV hub uses a 4-inch PCD (Pitch Circle Diameter) and that your studs are either M10 or 3/8-inch in diameter to match the 12.5mm stud holes. The 67mm centre hole must sit flush against the hub to ensure the wheel is centered correctly.
Maintenance Tips:
- Periodically check the lug nut torque to ensure the rim remains securely fastened.
- Monitor the tire pressure regularly to match your specific vehicle manufacturer's guidelines, as under-inflation can cause premature sidewall wear.
- Clean the tread after heavy use in deep mud to maintain the tire's ability to 'bite' the ground effectively.
- Inspect the rubber for embedded sharp debris or stones that could compromise the 4-ply structure over time.