The 2026 Honda Navi has the highest stated fuel-economy figure among the current models compared here: Honda lists an estimated 110 MPG. That is a manufacturer estimate, not a guaranteed real-world result or a verified ranking of every motorcycle sold in the U.S. A useful alternative is the 2026 Yamaha Zuma 125, which Yamaha estimates at 101 MPG.
How the Honda Navi and Yamaha Zuma 125 compare
Both figures are manufacturer estimates for 2026 models. Their formats and specifications differ, so MPG alone does not determine which is the better fit.
| Specification | 2026 Honda Navi | 2026 Yamaha Zuma 125 |
|---|---|---|
| Estimated fuel economy | 110 MPG, per American Honda Motor Co., Inc.; Honda says the estimate uses EPA exhaust-emission measurement procedures for comparison. Honda specifications | 101 MPG, estimated by Yamaha Motor Corporation, U.S.A. Yamaha specifications |
| Fuel capacity | 0.9 gallon, per Honda | 1.6 gallons, per Yamaha |
| Engine | 109cc air-cooled, single-cylinder four-stroke, per Honda | 125cc liquid-cooled four-stroke, per Yamaha |
| Transmission | Automatic V-Matic belt drive, per Honda | Automatic V-belt transmission, per Yamaha |
| Riding format | Mini-moto | Step-through scooter-style |
| Listed price | $2,199 base MSRP plus a separately listed $300 destination charge, per Honda | Not stated in the cited Yamaha specifications |
What Honda’s 110 MPG estimate means
Honda labels the Navi’s figure “Miles Per Gallon” and says the estimate is based on EPA exhaust-emission measurement procedures for comparison. It is not a promise of what every rider will get. Honda lists riding style, maintenance, weather, road conditions, tire pressure, accessories, cargo, and rider and passenger weight among the factors that can change mileage.
Honda separately described a 110.3 mpg Honda-tested fuel-mileage rating for the 2026 model in a press release. The retail specifications list 110 MPG; that is the appropriate figure to use when comparing the published product specifications rather than implying greater precision than the retail page provides. Honda’s 2026 Navi press release
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Why the higher MPG figure does not settle the buying decision
The Navi’s 0.9-gallon tank is smaller than the Zuma’s 1.6-gallon tank. A higher MPG estimate does not by itself establish longer practical range: actual consumption varies, and fuel capacity also matters. Neither listed estimate should be treated as a guaranteed range calculation for a particular ride.
Consider how you will use the bike as well as its fuel economy:
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- Compatibility Note: For further confirmation of specific model compatibility, refer to the vehicle owner's manual or contact a professional technician. Excludes Fo/rd, K/I/A, Bo/s/ch, C/I/S Je/tro/nic, G//M Th/rot/tle Bo/dy Systems, A/cu/ra, J/ee/p, B/M/W, Ni/s/san, and To/yo/ta fuel systems. Not compatible with small/non/standard S/chra/der vallves, high/pre/ssure direct in/ject/ed engines, or die//sel injection pumps. Verify your vehicle’s vallve size and pressure specs before purchase
- Wide Compatibility: This fuel pressure tester kit comes with multiple adapters for most gasoline engines in trucks, cars, motorcycles and RVs. But not compatible with diesel high - pressure injection pumps or direct injection engines
- Accurate Testing: The fuel pressure tester features high - precision sensors for accurate measurement of fuel system pressure changes. Measures range 0-140PSI/ 0-10bar dual color coded scale to diagnose fuel supply and injection issues
- Multipurpose Use: The 8 inches hose fits all M6 fuel pressure test ports. The 15 inches hose connects snugly to any 1/4" standard schrader valve. The M8, M10, M12, and M14 adapters make sure this tool kit can be used on most cars and vehicles
- Corrosion Resistance: Crafted from high - strength materials, the fuel pressure tester offers excellent corrosion and impact resistance. It ensures long - term stability and reliability even in harsh working conditions
- Price: Honda lists the Navi at $2,199 base MSRP, with a $300 destination charge shown separately. Local pricing and availability may vary.
- Engine and format: The 109cc Navi is a mini-moto; the 125cc Zuma is a step-through scooter-style model. Choose the riding layout that suits your needs.
- Transmission: Both manufacturers list automatic drive systems, though their designs have different names.
- Roads and speeds: Match the motorcycle to the roads and speeds you expect to ride. The fuel-economy figures do not establish that either model is appropriate for every route.
- Expected mileage: Treat both MPG figures as comparison estimates, not predictions for your riding conditions.
Does this make the Navi the most fuel-efficient motorcycle in the U.S.?
It is the strongest documented answer among the models compared here, but the available figures do not establish an exhaustive market-wide ranking. The U.S. Environmental Protection Agency maintains separate certification data for motorcycles, including highway motorcycle test results for model years 2006 to present and electric motorcycle results for model years 2015 to present. EPA says its detailed certification spreadsheets update quarterly and its interactive certificate report updates daily. The specific workbook rows were not compared here, so the Navi’s 110 MPG figure should not be described as an independently confirmed record across every current U.S. motorcycle. EPA motorcycle certification data
EPA’s Automotive Trends data is not a substitute for a motorcycle ranking: EPA describes it as data on new U.S. light-duty vehicles. EPA Automotive Trends
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