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For outright published horsepower, the 2026 Harley-Davidson Pan America 1250 ST leads the verified models here, at 150 hp. That does not make it a proven fastest Harley: comparable top-speed and acceleration results for these motorcycles are not established. This is an editorial shortlist of high-performance Harley-Davidsons, not a verified fastest-to-slowest ranking. Model year, weight, motorcycle type, and performance equipment all matter when deciding which one fits.
Which Harley-Davidson is the fastest?
The available official figures identify the 2026 Pan America 1250 ST as the most powerful of the models with verified horsepower here, but horsepower alone cannot answer which Harley-Davidson is fastest. The motorcycles differ in weight, design, gearing, aerodynamics, and intended use, and comparable acceleration times or top speeds were not established for this group. Treat the list below as a shortlist based on published output and performance-focused hardware—not a speed ranking.
High-performance Harley-Davidsons to consider
1. 2026 Harley-Davidson Pan America 1250 ST
Harley-Davidson lists the street-oriented Pan America 1250 ST at 150 hp and 94 lb-ft of torque, with a running-order weight of 546 lb. Its comparatively light listed weight and highest verified horsepower in this shortlist make it a distinct option for riders who want a performance-focused Harley outside the touring-bagger category. Street-focused wheels and a clutchless quick shifter further distinguish it from the baggers.
Harley-Davidson’s 2026 Pan America 1250 ST specifications
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2. 2026 Harley-Davidson CVO Street Glide ST
The CVO Street Glide ST pairs 127 hp with 145 lb-ft of torque and has a listed running-order weight of 816 lb. It is a high-output touring bagger, so its appeal is not simply a peak-horsepower figure: it combines strong torque with a substantially heavier touring platform. Harley-Davidson lists eight ride modes, including Track and Track+, giving riders selectable electronic settings.
Harley-Davidson’s 2026 CVO Street Glide ST specifications
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3. 2025 Harley-Davidson CVO Road Glide ST
Harley-Davidson’s 2025 model page lists 127 hp and 145 lb-ft of torque for the CVO Road Glide ST. The manufacturer describes a high-output 121 engine, adjustable suspension, and performance brakes. It is a race-inspired performance bagger for riders who want touring-bike form with hardware oriented toward more spirited riding. These figures are for the 2025 model; confirm the relevant model-year page before comparing specifications with a different year.
Harley-Davidson’s 2025 CVO Road Glide ST specifications
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4. 2026 Harley-Davidson Low Rider S
The 2026 Harley-Davidson brochure identifies the Low Rider S as a lineup model. The brochure evidence available here does not establish detailed output, weight, or equipment, so it belongs on a model-year-aware watchlist rather than a quantified comparison. Check the current market-specific model page for specifications before judging it against the motorcycles above.
5. 2026 Harley-Davidson Sportster S
The 2026 brochure also identifies the Sportster S as part of the lineup, but the detailed specifications needed for a like-for-like performance comparison are not established here. Its inclusion recognizes it as a candidate for performance-minded shoppers, not as a confirmed ranking position by horsepower or speed.
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Harley-Davidson’s 2026 motorcycle brochure
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How the verified figures compare
| Model year and motorcycle | Category or focus | Horsepower | Torque | Running-order weight | Performance equipment noted |
|---|---|---|---|---|---|
| 2026 Pan America 1250 ST | Street-oriented adventure motorcycle | 150 hp | 94 lb-ft | 546 lb | Street-focused wheels; clutchless quick shifter |
| 2026 CVO Street Glide ST | Touring bagger | 127 hp | 145 lb-ft | 816 lb | Eight ride modes, including Track and Track+ |
| 2025 CVO Road Glide ST | Race-inspired performance bagger | 127 hp | 145 lb-ft | Not stated on the cited 2025 specification page | Adjustable suspension; performance brakes |
The horsepower, torque, and weight figures above are manufacturer-listed specifications for the stated model years; they do not establish a shared test result. Weight can affect acceleration and handling, but it is only one factor, and the listed figures do not account for rider, cargo, or road conditions.
Quick Recap
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How to choose among them
- Prioritize the strongest verified horsepower figure: the 2026 Pan America 1250 ST is the clear choice among these quantified models at 150 hp.
- Want a high-output touring bagger: compare the 2026 CVO Street Glide ST’s ride modes and weight with the 2025 CVO Road Glide ST’s adjustable suspension and performance brakes.
- Considering a Low Rider S or Sportster S: use the current official model-year specifications for your market before placing either in a numerical comparison; lineup presence alone does not establish performance figures.
- Need a genuine speed ranking: look for comparable independent acceleration or top-speed tests—or manufacturer data measured on a consistent basis—for every motorcycle being compared. No such ten-model data set is established here.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
