Geomax Factory Spec
Dunlop's race-bred soft-terrain weapon — built for loam, sand, and mud where knob integrity and deep penetration win.
motorcycletireco.comPrices use MTC dealer formula · Load/speed index explained in the FAQ below
Live pricing · Walk-in mount & balance available
🛞 Running a spoked wheel? Bridgestone Heavy Duty Tubes fit 80/100-21 — from $47 →| Pos. | Size | Load/Speed | P/N | MFR Part # | UPC-A | Our Price / MSRP |
|---|---|---|---|---|---|---|
| Front | 80/100-21 | — | 0312-0630 | 45276500 | 358394A100 | $139.48$175.95Save $36 |
| Rear | 110/90-19 | — | 0313-1172 | 45276501 | 358395A100 | $166.90$210.95Save $44 |
| Rear | 120/90-19 | — | 0313-1173 | 45276502 | 358396A100 | $169.15$213.95Save $45 |
Dunlop Geomax Factory Spec Tires in Orange County — MTC
Motorcycle Tire Center in Orange, CA stocks the Dunlop Geomax Factory Spec for serious off-road and MX riders across Orange County — from Irvine and Anaheim to Huntington Beach and Mission Viejo. This is a purpose-built soft-terrain race tire, not a street crossover, and we'll make sure you're putting it on the right bike for the right conditions before you leave our shop. If loam, sand, and muddy tracks are your regular environment, this tire delivers the knob strength and ground penetration to back up that commitment.
At MTC, we mount and balance walk-in customers every day. Bring your wheels in and we'll have you out the door fast — mount and balance runs $69 per tire for mounting, $9.95 for balance, and $3.50 for disposal. We price below MSRP on Dunlop's lineup, and our staff rides, so we can actually talk through whether the Factory Spec fits your terrain or whether you'd be better served by an intermediate compound.
Questions about the Geomax Factory Spec or any other off-road rubber? Call us directly at (714) 516-9059. We're the motorcycle tire experts in Orange County and we'll give you a straight answer — not a sales pitch.
Dunlop's latest-gen motocross tire built for mixed terrain dominance — from hardpack to soft loam, front and rear, youth to full-size.
Dunlop's latest-gen motocross tire built for mixed terrain dominance — from hardpack to soft loam, front and rear, youth to full-size.
Built for motocross racers and aggressive trail riders who need reliable, consistent grip across changing terrain conditions throughout a full moto or ride.
Dunlop's purpose-built enduro tire engineered for riders who race through sand, mud, and intermediate terrain without swapping rubber between stages.
Dunlop's purpose-built enduro tire engineered for riders who race through sand, mud, and intermediate terrain without swapping rubber between stages.
Best suited for enduro racers and serious trail riders who need one tire to handle varied dirt conditions across long, demanding rides.
Endurocross-bred rear knobby built for extreme technical terrain — rocks, mud, roots, and everything in between.
Endurocross-bred rear knobby built for extreme technical terrain — rocks, mud, roots, and everything in between.
Best suited for Endurocross competitors and serious technical trail riders who put grip first and log minimal pavement miles
Dunlop's dedicated sand-and-mud motocross tire — built for riders who thrive where the track gets loose, deep, and unforgiving.
Dunlop's dedicated sand-and-mud motocross tire — built for riders who thrive where the track gets loose, deep, and unforgiving.
The MX14 is built for one job — dominating sand and mud — and it executes that mission better than nearly anything else in the motocross segment.
Dunlop's purpose-built motocross tire engineered for intermediate-to-hard terrain — where hardpack grip, knob durability, and slide control decide motos.
Dunlop's purpose-built motocross tire engineered for intermediate-to-hard terrain — where hardpack grip, knob durability, and slide control decide motos.
Best suited to motocross and off-road riders who spend most of their time on intermediate-to-hard terrain and demand predictable slide with lasting knobs.
Dunlop's hard enduro weapon — a super-soft gummy compound built for riders who need maximum traction on rocks, roots, and technical terrain, full stop.
Dunlop's hard enduro weapon — a super-soft gummy compound built for riders who need maximum traction on rocks, roots, and technical terrain, full stop.
The EN91EX is purpose-built for serious hard enduro riders who put grip above all else and accept the wear trade-off that comes with it.
Race-bred motocross front tire built for intermediate terrain — from local track days to regional amateur competition.
Race-bred motocross front tire built for intermediate terrain — from local track days to regional amateur competition.
Built for competitive amateurs and aggressive off-road riders who need proven front-end grip across varied track conditions without constant tire swaps.