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DUNLOPSport-TouringSport

Sportmax Roadsmart IV

Dunlop's flagship sport-touring tire — built for Orange County canyon runs, cross-state tours, and everything in between without swapping rubber.

MTC8.4/10★★★★☆Sport-Touring · All-Conditions
DUNLOP Sportmax Roadsmart IV motorcycle tiremotorcycletireco.com
BrandDUNLOP
TypeSport-Touring / Sport
FitmentFront & Rear
Sizes8
Three-component compound construction warms up fast and holds consistent performance from first mile to last — no waiting around on cold mornings
Multi-Tread design puts long-lasting compound at the center for highway mileage and grippier rubber at the shoulders for confident lean angles in the canyons
Hi Silica X formula loads extra silica into the tread for noticeably better wet-weather traction and cold-start grip on those early SoCal mornings
Dual-compound shoulders engage progressive grip under load while the harder center strip resists wear on freeway slabs — real balance, not a compromise
Neutral profile geometry delivers smooth, predictable transitions from straight to corner — confidence-inspiring without being numb
Wide size coverage fits most modern sport-touring, adventure-sport, and sport platforms — ask MTC if your fitment is covered
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Select Size

Prices use MTC dealer formula · Load/speed index explained in the FAQ below

Fulfillment

Live pricing · Walk-in mount & balance available

🛞 Running a spoked wheel? Mitas Heavy Duty Tubes fit 120/70-17 — from $11 →
Save below MSRPIn-stock · ships fastWalk-in install
MTC Rating
MTC Score
8.4/10
★★★★☆
The Roadsmart IV is the go-to tire for riders who log real miles, attack real corners, and want one tire that handles both without apology.
Performance
Dry Grip8.7
Wet Grip8.5
Street Manners9.0
Track Capability7.2
Mileage8.3
Value8.4
Best For
Aggressive Commuter
You're the rider who turns the daily grind into a back-road detour whenever possible — mixing freeway miles with spirited runs through the hills. The Roadsmart IV's quick warm-up has you covered from the cold morning driveway, and its durability means you're not buying tires every few months.
Perfect Match
Sport-Touring Enthusiast
Weekend trips, mountain passes, multi-day hauls — you do it all and you don't back off just because you're loaded with gear. The Roadsmart IV gives you the corner grip to attack the twisties and the mileage to actually finish the trip without worrying about what's left on the rear.
Perfect Match
Track-Focused Rider
If lap times and maximum lean confidence are the priority and the street is just how you get to the track, the Roadsmart IV isn't your tire. It can handle a casual track day in a novice group, but for consistent circuit use, step up to a dedicated Sportmax Q-series tire.
Consider Dunlop Sportmax Q5 or similar dedicated sport tire
Full Size Chart & Part Numbers
Pos.SizeLoad/SpeedP/NMFR Part #UPC-AOur Price / MSRP
Front120/70ZR17—0301-090245253301848983018724$215.95$290.95Save $75
Front120/70ZR18—0301-090345253307848983019424$233.32$310.95Save $78
Front120/70ZR19—0301-0983452533085452000821300$238.72$312.95Save $74
Rear160/60ZR17—0302-153345253302848983018731$261.55$347.95Save $86
RearOOS170/60ZR17—0302-153445253303848983018748$269.77$358.95Save $89
Rear180/55ZR17—0302-153545253304848983018755$280.65$372.95Save $92
Rear190/50ZR17—0302-153645253305848983018762$295.40$392.95Save $98
Rear190/55ZR17—0302-153745253306848983018779$309.79$411.95Save $102
Frequently Asked
Most riders see somewhere between 6,000 and 10,000 miles depending on riding style, bike weight, and how hard you lean it over. Canyon-aggressive sport-touring riders tend to land at the lower end, while highway-focused tourers often push well past that. The Multi-Tread construction helps keep wear even across the profile rather than squaring off early.
The Roadsmart IV handles occasional novice and intermediate track days without issue — plenty of riders use them for one or two track days a season. That said, if you're chasing lap times or regularly pushing hard in advanced groups, a dedicated sport compound like Dunlop's Q-series will give you better outright feedback and grip. Think of these as the tire you don't have to swap out for a weekend track day, not a substitute for a race-focused tire.
Meaningfully better. The Hi Silica X technology adds more silica content throughout the tread, and riders consistently notice the improvement — especially in the first few cold or damp miles before the tire fully comes up to temp. For year-round Orange County riding where marine layer mornings are a reality, it's a real-world upgrade.
Yes — plan on 100 to 200 easy miles to scrub off the mold release agents and let the compound seat properly. Keep lean angles moderate and braking progressive during that break-in window. Once you're through it, the three-component construction comes up to temperature noticeably faster than a lot of competing tires in this class.
The Roadsmart IV is engineered to balance longevity, all-weather capability, and sport-level handling in a single tire — Multi-Tread construction makes that possible. The Q-series uses softer, stickier compounds throughout for maximum grip and track feedback, but they wear faster and don't perform as predictably in cold or wet conditions. Choose the Roadsmart IV if you want versatility and miles; go Q-series if grip is the only thing on the scorecard.
Very likely. Dunlop offers the Roadsmart IV in a broad size range covering most sport-touring, adventure-sport, and sport platforms. Check the sidewall on your current tires for the size spec and we can confirm fitment when you call or stop in. Switching brands can produce a subtle change in steering feel — most riders adapt within the first 30 to 50 miles.

Dunlop Sportmax Roadsmart IV Tires in Orange County — MTC

Motorcycle Tire Center in Orange, CA stocks the Dunlop Sportmax Roadsmart IV for riders across Orange County — from Irvine and Newport Beach to Fullerton, Anaheim, Mission Viejo, and Huntington Beach. This is Dunlop's benchmark sport-touring tire: fast warm-up, strong wet-weather grip, and enough mileage to justify keeping it on a bike you actually ride year-round. If you're running canyon roads in the morning and the 5 Freeway in the afternoon, this is the tire that doesn't ask you to choose.

At MTC, we sell the Roadsmart IV below MSRP and mount it the same day you walk in. Our walk-in mount and balance service runs $69 mount, $9.95 balance, and $3.50 disposal per tire — no appointment required, no waiting a week for a shop slot. Our team knows these tires inside and out, and we'll make sure you're getting the right fitment for your specific bike before we ever break a bead.

Ready to get the Roadsmart IV on your bike? Stop by our Orange, CA location or call us at (714) 516-9059. We'll pull up your size, confirm fitment, and get you back on the road the same day. That's what it means to deal with motorcycle tire experts — not a general shop that does tires on the side.

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