Stepping up to 22.5″ wheels shows you aren’t afraid to make bold moves. Upgrading to a 6 wheel kit like this will land you in the driver seat of an extra 12,000 lbs of towing capacity. It also gets your medium duty truck up to dock height. Built with a 8 x 275mm bolt pattern, these wheels were made to improve your Chevy/GMC 4500/5500 or to replace you Class A Motorhome’s wheels.

Ironman I-181 Tires are all position ribbed tires that have excellent directional stability to alleviate abnormal wear. The five rib design delivers long mileage and shoulder wear resistance on steer axle use. Microsipes fight onset of irregular wear and provide better mileage. Backed by a 60 month limited warranty and covers 1 retread.

Northstar manufactures quality heavy duty wheels for the commercial trucking industry. Their fully forged rugged style strikes the balance between grit and grandeur. They have a selective focus on aluminum wheels that allows them to deliver a safe, tested and durable product at an honest price. Northstar is leading the way in pursuit of reliability and resilience, polished to perfection.

Kit Includes:

6 – Ironman Highway Tires (I181 255/70R22.5)
4 – Northstar Aluminum Wheels Mirror Polished Both Sides (225750)
2 – Jantsa Black Steel Inner Dual Wheels (750279)
2 – Front Northstar Stainless Steel Hub & Lug Cover Kit (22120)
2 – Rear Northstar Stainless Steel Hub & Lug Cover Kit (22220)

Tire Specs:

Tire Size: 255/70R22.5 (36.61″)
Ply & Load Range: 16 / H
Max Load Single: 5510 lbs @ 120 psi
Max Load Dual: 5070 lbs @ 120 psi
Tread Depth: 18.3/32″
Weight: 88.97 lbs

Aluminum Specs:

Material: 6061 Fully Forged Aluminum
Finish: Mirror Polished Both Sides
Mounting Set Up: Hub Pilot Dual-Mounting
Wheel Size: 22.5″ x 7.50″
Bolt Pattern: 8×275
Hub Bore Diameter: 221.1mm
Hand/Vent Holes: 8 x 2.00″
Wheel Offset: 6.28″
Backspacing: N/A
Disc Thickness: .92″
Weight: 53 lbs
Max Load & Inflation: 7300 lbs @ 130 psi
Installed Valve Stem: TR555D

Steel Specs:

Material: Steel
Finish: Painted Black
Mounting Set Up: Hub Pilot Dual-Mounting
Wheel Size: 22.5″ x 7.50″
Bolt Pattern: 8×275
Hub Bore Diameter: 221.1mm
Hand/Vent Holes: 4
Wheel Offset: 6.02″
Backspacing: N/A
Disc Thickness: .43″
Weight: 76 lbs
Max Load & Inflation: 7100 lbs @ 120 psi
Installed Valve Stem: TR-573-E17

Additional Information:

Fits These Applications:
Motorhome & RV Workhorse Chassis
Chevrolet 4500/5500 Kodiak
GMC 4500/5500 Topkick
Freightliner M2 (some models)
International 4300 (some models)
Ford F650 (some models)

Replaces Parts:
873401
873402
225750
29028
90614

Want a different tread pattern?

Highway Tread – Toyo M122

Aggressive Tread – DynaTrac DT320