Dominate soft-to-intermediate terrain tracks and technical off-road trails with the ultimate traction setup: the Dunlop Geomax MX34 Rear Tire (Part Number: 45273512). Explicitly engineered with a standard 18-inch cross-country profile, this high-performance intermediate dirt bike tire introduces revamped block configurations to deliver relentless drive hookup and maximum acceleration across the lower 48 states.
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- Progressive Cornering Block Technology (PCBT): Built with Dunlop's patented block-within-a-block design on the shoulder knobs, drastically increasing cornering grip and sliding predictability when navigating deeply rutted singletrack or loamy berms.
- 30% Longer Peak Performance: An updated carcass material profile significantly enhances structural damping and impact absorption, allowing the tire to maintain its rigid, predictable flex up to 30% longer than traditional off-road compounds.
- Oversized Center Tread Footprint: Designed with a rear tread pattern featuring center blocks that are 11% taller and 44% wider than previous generations, providing unmatched straight-line acceleration and instant drive bite out of corners.
- Pro-Level Mud Evacuation: Advanced mud evacuation channels shed heavy clay, wet sand, and slick soil immediately, preventing clogged lugs and keeping your traction profile perfectly clear.
- Matching Sets Available: Eliminate front-end sliding instability by pairing this aggressive rear tire with our matching Geomax MX34 21-inch front tires.
Confirmed Fitment Information
This 110/100-18 tube-type (TT) rear tire is designed explicitly for a standard 18-inch rear wheel rim width of 1.85" to 2.15". Carrying a 64M load and speed rating, it safely supports up to 617 lbs at sustained off-road trail speeds up to 81 mph. This tire features a taller sidewall optimized for impact compliance and cushion, making it the ideal factory-spec size or premium performance replacement tire for the following 125cc to 300cc cross-country, enduro, and dual-sport platforms:
- KTM XC / XC-F / XC-W / EXC-F (150cc, 250cc, 300cc, 350cc): 2000 – 2027+ (Factory Rear Size for 125-300cc off-road/enduro configurations)
- Husqvarna FX / TE / FE (125cc, 250cc, 300cc, 350cc): 2014 – 2027+ (Factory Rear Size for 125-300cc off-road/enduro configurations)
- GASGAS EX / EX-F / EC / EC-F (250cc, 300cc, 350cc): 2021 – 2027+ (Factory Rear Size)
- Yamaha YZ250FX / WR250F / YZ250X 2-Stroke: 2015 – 2027+ (Factory Rear Size)
- Honda CRF250RX / CRF250X: 2017 – 2027+ (Factory Rear Size)
- Kawasaki KX250X: 2021 – 2027+ (Factory Rear Size)
- Displacement & Rim Sizing Note: While a 110/100-18 tire can physically sit on a 450cc class 2.15" width rim, this size is specifically tailored to maximize horsepower efficiency and nimble tracking on 125cc to 300cc small-to-mid bore machines. For big-bore 450cc and 500cc class powerhouses, the wider 120/90-18 profile (Part #45273513) is recommended to handle the extra rim width and torque footprint.
- Fitment Safety & Application Note: This tire profile is labeled as NHS (Not for Highway Service) and is engineered strictly for closed-course track competition and off-road trail use. As a tube-type (TT) tire, it requires a standard 18-inch heavy-duty inner tire tube or off-road mousse insert for proper installation on laced wire-spoke wheels.
Technical Specifications
| Feature |
Specification |
| Brand |
Dunlop Tires |
| Model Line |
Geomax MX34 Series (Rear) |
| Tire Size |
110/100-18 |
| Terrain Profile |
Soft to Intermediate Terrain / Loamy / Sandy Soil Mixes |
| Load & Speed Index |
64M (Max 617 lbs / 81 mph) |
| Construction / Type |
Bias Ply / Tube-Type (TT) / NHS (Not for Highway Service) |
| Sidewall Style |
Blackwall |
| Manufacturer Part Number |
45273512 |
US Dollars
