Take your ride to the next level with the ultra-aggressive Frontline® 556 Series 20" UTV & Side-by-Side Wheels!
Transform your machine's stance and dominate any terrain with the Frontline® 556 Series 20" UTV and Side-by-Side wheel. Engineered for high-performance off-road applications, the 556 features a striking, forked 8-spoke architecture that provides maximum open-face cleanout for mud, rocks, and trail debris while delivering race-inspired strength. Available in three premium automotive-grade clear-coated finishes—Stealth Black, Gloss Black, and Gloss Black with Machined Aluminum Accents—this wheel brings elite styling and uncompromising durability to your machine.
Built from virgin high-grade aluminum alloys, the 20x6.5 Frontline 556 is engineered with optimized offsets (4+3 with +5mm or +10mm spacing) to maintain factory steering dynamics and stability while fitting large-diameter all-terrain and mud tires. Backed by a Lifetime Limited Structural Warranty, each wheel features a heavy-duty 1,000 lb load rating, integrated screw-in center caps that won't pop off on rough trails, and an airtight metal valve stem. Available in universal 4x137, 4x156, and modern 5x4.5 (5/114.3mm) bolt patterns, it provides bolt-on fitment for Can-Am, Polaris, Honda, Kawasaki, and new 5-lug rigs.
🟢 Complete Your Package: Want to pair your new 20" Frontline 556 wheels with a set of aggressive, deep-lug tires? Explore our dedicated collection below—add your tires and wheels to your cart for complete pre-mounted, aired-up delivery straight to your door!
Frontline 556 20" Wheel Features & Performance Highlights
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Forked 8-Spoke Open Design: Distinctive structural design sheds mud and gravel effortlessly while providing structural resistance against severe rock and ledge impacts.
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Full 20" Big-Wheel Sizing (20x6.5): Optimized width and diameter for tall 33", 35", and 37" all-terrain and mud radial tires.
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Heavy-Duty 1,000 lb Load Capacity: Engineered to withstand aggressive payloads up to 2,000 lbs per axle across rocky trails, dunes, and deep bogs.
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Automotive-Grade Clear Coat Finishes: Multi-layer protective coating shields against rock chipping, chemical oxidation, and UV discoloration.
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Heavy-Duty Screw-In Center Caps: Precision-threaded center caps stay securely seated through extreme chassis vibrations and rough trail conditions.
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Universal Bolt Pattern Selection: Available in 4/137, 4/156, and modern 5/4.5 (5x114.3mm) bolt patterns to cover nearly every major UTV platform.
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Includes Complete Hardware: Ships with an airtight metal valve stem and an authentic Frontline All Terrain center cap.
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Lifetime Structural Warranty: Protected by Frontline's manufacturer limited lifetime warranty against structural failure.
➔ View Frontline's official Lifetime Limited Structural Wheel Warranty here.
Frontline 556 20" Wheel Lineup Technical Specifications
| PART # |
SIZE |
BOLT PATTERN |
OFFSET (ET) |
FINISH |
LOAD RATING |
CENTER CAP |
| 20FL01M37 |
20x6.5 |
4/137 (4x137mm) |
4+3 (+10mm) |
Machined / Gloss Black |
1,000 lbs |
Screw-In Included |
| 20FL01M56 |
20x6.5 |
4/156 (4x156mm) |
4+3 (+5mm) |
Machined / Gloss Black |
1,000 lbs |
Screw-In Included |
| 20FL01B37 |
20x6.5 |
4/137 (4x137mm) |
4+3 (+10mm) |
Gloss Black |
1,000 lbs |
Screw-In Included |
| 20FL01B56 |
20x6.5 |
4/156 (4x156mm) |
4+3 (+5mm) |
Gloss Black |
1,000 lbs |
Screw-In Included |
| 20FL01B55 |
20x6.5 |
5/4.5 (5x114.3mm) |
4+3 (+10mm) |
Gloss Black |
1,000 lbs |
Screw-In Included |
| 20FL01S37 |
20x6.5 |
4/137 (4x137mm) |
4+3 (+10mm) |
Stealth Black |
1,000 lbs |
Screw-In Included |
| 20FL01S56 |
20x6.5 |
4/156 (4x156mm) |
4+3 (+5mm) |
Stealth Black |
1,000 lbs |
Screw-In Included |
Comprehensive Vehicle Fitment & Lug Nut Reference Guide
| MAKE |
MODEL FITMENT |
POSITION |
BOLT PATTERN |
WHEEL SIZE / OFFSET |
LUG THREAD |
LUG KIT # |
| Can-Am |
Commander, Maverick 800/1000, Defender ('16–'22), Outlander, Renegade |
Front / Rear |
4/137 |
20x6.5 (4+3 / +10mm) |
10x1.25 |
NUTKIT01 |
| Can-Am |
Maverick X3 ('18–'21), X3 Max, Maverick Trail |
Front / Rear |
4/137 |
20x6.5 (4+3 / +10mm) |
12x1.50 |
NUTKIT11 |
| Honda |
Pioneer 1000 (All Years), Talon 1000 / Talon 4 ('19–'21) |
Front / Rear |
4/137 |
20x6.5 (4+3 / +10mm) |
12x1.50 |
NUTKIT11 |
| Kawasaki |
Teryx 750, Mule 2000–3000 Series |
Front / Rear |
4/137 |
20x6.5 (4+3 / +10mm) |
12x1.25 |
NUTKIT14 |
| Kawasaki |
Mule FXT Pro, FXR, MX |
Front / Rear |
4/156 |
20x6.5 (4+3 / +5mm) |
12x1.25 |
NUTKIT14 |
| Kawasaki |
Teryx KRX 1000 ('20–'22) |
Front / Rear |
4/156 |
20x6.5 (4+3 / +5mm) |
12x1.25 |
NUTKIT14 |
| Textron / Arctic Cat |
Wildcat XX ('19+) |
Front / Rear |
4/156 |
20x6.5 (4+3 / +5mm) |
12x1.50 |
NUTKIT11 |
| Polaris |
Sportsman 335/400/450/500/570 ('96–'22), RZR 570, Sportsman 600/700/800, Ranger 500/ETX/570/EV/800 ('03–'22), RZR 800/900XP ('08–'14), ACE |
Front / Rear |
4/156 |
20x6.5 (4+3 / +5mm) |
3/8"-24 |
NUTKIT03 |
| Polaris |
Sportsman 550/850/1000 XP ('09–'22), Scrambler 850/1000 XP ('14–'22) |
Front / Rear |
4/156 |
20x6.5 (4+3 / +5mm) |
10x1.25 |
NUTKIT01 |
| Polaris |
RZR XP 1000 / XP 4 ('14–'22), RZR 900 / 1000 S ('15–'22), Ranger 570 Full Size / 900XP / 1000 ('13–'22) |
Front / Rear |
4/156 |
20x6.5 (4+3 / +5mm) |
12x1.50 |
NUTKIT11 |
| Polaris (5-Lug) |
RZR Pro R, RZR Turbo R, Xpedition, Ranger XD 1500 (All 5-Lug Models) |
Front / Rear |
5/4.5 (5/114.3) |
20x6.5 (4+3 / +10mm) |
12x1.50 |
NUTKIT11 / 286220 |
| Yamaha |
YXZ 1000R ('19+), Wolverine RMAX 1000 ('21–'22) |
Front / Rear |
4/156 |
20x6.5 (4+3 / +5mm) |
12x1.25 |
NUTKIT14 |
