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DUNLOPDual-SportAdventure

D604

Dunlop's 80/20 dual-sport workhorse — built for riders who commute all week and hit fire roads all weekend.

MTC7.8/10★★★★☆Dual-Sport · Street-Biased All-Rounder
DUNLOP D604 motorcycle tiremotorcycletireco.com
BrandDUNLOP
TypeDual-Sport / Adventure
FitmentFront & Rear
Sizes2
80/20 road-to-dirt tread bias keeps you planted on asphalt without leaving you stranded when the pavement ends
L-speed rating (74 mph) dialed in for dual-sport and adventure bikes that do real highway miles between the dirt bits
Tread geometry clears gravel and light mud effectively while holding line on paved roads at highway speeds
Wear-focused compound formula extends service life across mixed-surface riding — a high-mileage commuter's best friend
Casing construction handles the load ranges typical of dual-sport and small-displacement adventure motorcycles
Proven all-rounder for fire roads, gravel forest routes, and the daily slog through Orange County traffic alike
Select Size

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

Fulfillment

Live pricing · Walk-in mount & balance available

Save below MSRPIn-stock · ships fastWalk-in install
MTC Rating
MTC Score
7.8/10
★★★★☆
The D604 is the go-to choice for dual-sport and adventure commuters who need one tire to handle both the 91 Freeway and a Saturday fire road run.
Performance
Dry Grip7.2
Wet Grip6.8
Street Manners7.9
Track Capability3.5
Mileage8.1
Value8.3
Best For
Daily Commuter / Weekend Explorer
You're on a dual-sport or small-displacement adventure bike five days a week, then pointing at a gravel forest road on Saturday morning. You want a tire that handles both without compromise — one that's durable enough to rack up serious mileage and dependable enough that you don't think twice about the next unpaved detour.
Perfect Match
Urban Rider with Light Off-Road Ambitions
Mostly pavement — city traffic, canyon runs, maybe some coastal cruising — but you want the option to peel off onto a dirt access road without swapping rubber first. The D604 gives you predictable, confidence-inspiring street manners as your foundation, with just enough off-road capability to keep the weekend interesting.
Great Match
Aggressive Trail Rider
If technical single-track, deep ruts, or rocky terrain is your regular menu, the D604's street-biased 80/20 tread pattern won't cut it. You'll want a purpose-built 50/50 or full knobby design with the aggressive compound and block spacing to handle real off-road punishment.
Consider a dedicated off-road tire with 50/50 or knobby tread
Full Size Chart & Part Numbers
Pos.SizeLoad/SpeedP/NMFR Part #UPC-AOur Price / MSRP
Front120/70B120340-092445215048848983016591$75.74$91.95Save $16
Rear130/70B120340-092545215531848983016607$84.06$101.95Save $18
Frequently Asked
Think of it as the tire's home turf split: 80% of its design priority is paved-road performance — stable tracking, predictable cornering, usable highway speed. The remaining 20% gives you enough tread aggression and sidewall resilience to handle gravel roads, packed dirt, and light fire trails without white-knuckling it. It's not a knobbly adventure tire, but it's far more capable off-pavement than a street-only design.
That's the exact use case this tire was built around. Dunlop engineered the compound and pattern to handle the grind of daily commuting miles while staying capable enough for weekend dirt excursions — no tire swapping required. If your riding week looks like Orange County streets Monday through Friday and a forest service road Saturday, this is your tire.
The L-rating certifies sustained operation up to 74 mph — right in the wheelhouse for dual-sport and adventure bikes that weren't engineered for triple-digit speeds anyway. For freeway hops between cities or steady highway cruising, you're well within spec. If your ride regularly demands higher sustained speeds, that's worth factoring into your tire choice.
Wet grip scores a 6.8 here — adequate for rain-day commuting and light touring, not exceptional. The tread channels move water out of the contact patch effectively for a dual-sport design, and the tire behaves predictably when ridden within its limits. It's not the tire you want for pushing pace in a downpour, but for getting to work and back on a wet October morning, it handles the job without drama.
Short answer: no. This is an 80/20 street-biased tire — it's at home on gravel paths and packed dirt, but technical single-track, loose rock, and deep mud will expose its limits quickly. If your off-road riding gets serious, step up to a 50/50 or dedicated knobby design that's built for that kind of punishment.
Mileage will vary based on your bike's weight, riding surface mix, and throttle habits, but the compound is tuned for longevity over outright grip — and that trade-off pays off for high-mileage dual-sport riders. Expect solid wear life for the category, making it one of the better value propositions in the dual-sport segment when you factor in cost-per-mile.

Dunlop D604 Tires in Orange County — MTC

Motorcycle Tire Center in Orange, CA stocks the Dunlop D604 for dual-sport and adventure riders throughout Orange County — from Irvine and Anaheim to Mission Viejo, Fullerton, Newport Beach, and Huntington Beach. The D604 is the dependable 80/20 dual-sport tire that lets you commute on Monday and explore a fire road on Saturday without ever changing rubber. It's a proven workhorse from Dunlop's off-road lineage, purpose-built for real-world mixed-surface riding rather than showroom spec sheets.

When you bring your dual-sport or adventure bike into MTC, our tire techs mount and balance on-site — no appointment necessary. Walk-in mount and balance runs $69 per tire for mount, $9.95 for balance, and $3.50 for disposal. We sell D604 tires below MSRP dealer pricing, so you're getting a fair deal on a tire that's already one of the stronger value options in the dual-sport segment. Whether you're on a KLX, DR, CRF-L, or a small-displacement ADV bike, we'll get you set up and back on the road fast.

Questions about fitment, sizing, or whether the D604 is the right call for your riding style? Give us a call at (714) 516-9059 — we're straight with our recommendations. If your riding leans heavily off-road, we'll tell you so and point you toward a more appropriate option. The D604 earns its place for commuter-explorer riders who want one tire that does it all without demanding specialized technique or constant compromise.

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