Set of 4 new 18x9.50-8 Knobby Wheels with tyres fitted to heavy-duty 4 stud 100mm PCD steel rims. ...Set of 4 new 18x9.50-8 Knobby Wheels with tyres fitted to heavy-duty 4 stud 100mm PCD steel rims. These wheels are suitable for ride-on lawn mowers, garden trailers, ATV quad trailers, buggies, karts, and small agricultural machinery.
Wheel Specifications:
- Tyre Size: 18x9.50-8 4ply Wanda P322 knobby
- Rim: Steel, 4x100mm PCD
- Overall Diameter: 460mm
- Max Tyre Width: 212mm
- Tread Depth: 9.5mm
- Inflation: 5psi
- Max Load per Wheel: 102kg (225 lbs)
- Rim Finish: Heavy-duty welded, powder coat with E-coating anti-corrosion treatment
- Pitch Circle Diameter (PCD): 100mm
- Centre Hole Size: 60mm
- Stud Hole Size: 13.5mm (suits M12 stud)
This knobby stud pattern is highly versatile, acting as a flotation tyre that minimizes ground disturbance and leaves minimal track patterns. It also absorbs bumps for a smoother ride. These wheels are intended for off-road applications only and are not suitable for highway service.
Parnells 18X9.50-8 Atv Knobby Tyre Fitted On 4 Stud 100Mm Pcd Rim Wanda P322 (Set Of 4)Free delivery in 1–3 days£348.16Visit shop →
Product Information
Full details
This Parnells 18X9.50-8 ATV Knobby Tyre set is designed for users of ride-on lawn mowers, garden trailers, ATVs, buggies, karts, and small agricultural machinery who need durable, versatile off-road wheels. The key benefit is enhanced traction and a smoother ride on uneven terrain due to the knobby tread pattern and robust construction. A key caveat is that these wheels are strictly for off-road use and not suitable for highway travel. The set includes four 18x9.50-8 tyres fitted to heavy-duty steel rims with a 4x100mm PCD, featuring a knobby tread for minimal ground disturbance and shock absorption.
All features
Model Part Number
P322
Brand
Parnells
Extended Product Information
FAQs
What is the maximum load capacity per wheel?
Each wheel has a maximum load capacity of 102 kg (225 lbs).
What is the recommended tyre pressure?
The recommended tyre inflation pressure is 5 psi.
Are these wheels suitable for use on public roads?
No, these wheels are intended for off-road applications only and are not suitable for highway service.
What does PCD 100mm mean?
PCD stands for Pitch Circle Diameter, which is the diameter of the circle on which the wheel stud holes are centered. A 100mm PCD means the distance across the center of the hub, passing through the center of opposite stud holes, is 100mm.
Can I use these tyres on a different size rim?
These tyres are specifically designed for 18x9.50-8 tyre size and are pre-fitted to 4x100mm PCD steel rims. Using them on different rim sizes is not recommended and may compromise safety and performance.
How do I clean the steel rims?
Clean the rims with a damp cloth. The powder coat and E-coating provide anti-corrosion properties, so avoid abrasive cleaners that could damage the finish.
What type of lug nuts should I use?
The stud hole size is 13.5mm, which typically suits M12 studs. Ensure you use lug nuts compatible with your vehicle's studs and the wheel's hole size.
Troubleshooting
Wheel is wobbly or unbalanced.
Check that the wheel is securely fastened to the hub and that lug nuts are properly tightened. Ensure the tyre is correctly seated on the rim and inflated to 5 psi. Consider having the wheel balanced if the issue persists.
Tyre loses air pressure.
Inspect the tyre for punctures, cuts, or damage to the sidewall. Check the valve stem for leaks. Ensure the bead of the tyre is properly seated against the rim. If leaks are found, professional repair or replacement may be necessary.
Poor traction in specific conditions.
Ensure tyres are inflated to the recommended 5 psi. For very soft or muddy conditions, consider if the knobby tread is optimized for that specific terrain. Clean mud and debris from the tread pattern to restore grip.
Rim shows signs of corrosion.
Clean the affected area gently with a damp cloth. For minor surface corrosion, a mild polish may help. Ensure the E-coating is not significantly damaged. Avoid abrasive cleaners that can damage the protective coating.
Pros and Cons
Pros
Excellent off-road traction with knobby tread design.
Durable construction with heavy-duty steel rims and 4-ply tyres.
Versatile fitment for various garden and agricultural machinery.
Improves ride comfort by absorbing bumps.
Resistant to corrosion with powder and E-coat finish on rims.
Cons
Not suitable for highway or road use.
Requires proper inflation to 5psi for optimal performance and load capacity.
Maximum load capacity of 102kg (225 lbs) per wheel may be limiting for very heavy applications.
Setup, Compatibility & Care Instructions
Setup:
Ensure the mounting surface on your vehicle's hub is clean and free of debris.
Align the wheel's 4-stud pattern with the vehicle's wheel studs.
Secure the wheel using appropriate lug nuts (M12 size recommended for the 13.5mm stud holes). Tighten nuts in a star pattern to ensure even seating.
Inflate tyres to the recommended 5 psi. Do not over-inflate.
Compatibility:
PCD: 100mm (Pitch Circle Diameter)
Stud Hole Size: 13.5mm (fits M12 studs)
Centre Hole Size: 60mm
Suitable for machinery with compatible hub dimensions and bolt patterns.
Care:
Regularly check tyre pressure and maintain it at 5 psi.
Inspect tyres for any signs of damage, cuts, or wear.
Clean rims and tyres with a damp cloth; avoid harsh chemicals.
Store wheels in a dry place away from direct sunlight when not in use.