The 2021 Harley-Davidson FLSB Sport Glide is a modern cruiser that blends classic Harley styling with touring versatility. Introduced in 2018 as part of the Softail family, it offers a unique body style with detachable saddlebags and a windshield. While it doesn't have distinct trims like some other Harley models, its popularity stems from its adaptability, appealing to riders seeking a comfortable cruiser with some long-distance capability without the bulk of a full dresser. New pricing typically started in the high $18,000s.
The Good
The 2021 Sport Glide excels with its responsive Milwaukee-Eight engine, comfortable ride for longer journeys, and stylish, customizable design. Its detachable components offer practicality for city commuting or touring, striking a balance between emotional appeal and functional value.
The Bad
Potential owners should be aware of the Sport Glide's modest suspension travel, which can lead to a firm ride over rough pavement. Some riders also find the stock seat less than ideal for extended trips, and its relatively smaller fuel tank may necessitate more frequent stops on longer runs.
2021 Harley-Davidson FLSB / Sport Glide: Quick Overview
- Engine: Milwaukee-Eight 107 (1745cc) V-twin
- Horsepower: Approximately 93 hp @ 5,020 rpm
- Torque: Approximately 114 lb-ft @ 3,250 rpm
- Fuel Economy: Estimated around 47 mpg (city/highway combined)
- 0-60 mph: Approximately 4.0 - 4.5 seconds (rider dependent)
- Towing Capacity: Not applicable; this is a motorcycle.
- Transmission: 6-speed Cruise Drive
- Frame: Softail chassis
- Suspension: Front: 43mm telescopic forks; Rear: Monoshock with adjustable preload
- Brakes: Front: 300mm disc with 4-piston caliper; Rear: 292mm disc with 2-piston caliper
- Wheels: Cast aluminum
- Tires: Front: 130/70B18; Rear: 180/65B16
- Fuel Tank Capacity: 3.5 gallons
- Dry Weight: Approximately 668 lbs
- Seat Height: 25.7 inches
- Ground Clearance: 4.4 inches
- Key Features (Standard on 2021 FLSB Sport Glide):
- Detachable windscreen for customizable wind protection.
- Detachable hard-shell saddlebags for easy cargo access and removal.
- LED headlight and taillight for enhanced visibility.
- ABS (Anti-lock Braking System).
- Digital instrument display with speedometer, tachometer, fuel gauge, and gear indicator.
- USB charging port.
- Keyless ignition.
- Cruise control.
- Blacked-out styling elements for a modern aesthetic.
- Softail suspension for a smoother ride compared to older Harley frames.
2021 Harley-Davidson FLSB / Sport Glide Specifications
Vehicle Information
| Year | 2021 |
| Make | Harley-Davidson |
| Model | FLSB / Sport Glide |
| Trim | - |
| Style | - |
| Type | Motorcycle |
| Category | Motorcycle |
Manufacturing Details
| Made In | United States |
| Manufacturing City | YORK |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 1750cc 2cyl |
| Engine Size | 1750L |
| Engine Cylinders | 2 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | - |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 2021 Harley-Davidson FLSB / Sport Glide Have?
The 2021 Harley-Davidson FLSB Sport Glide, being part of the relatively newer Softail platform, generally benefits from improved engineering and reliability compared to older Harley models. However, like any vehicle, there are some aspects owners have reported. One common observation, particularly on longer rides, is that the stock seat can become uncomfortable for some riders due to insufficient padding or support. This is often addressed by aftermarket seat options. Another point of contention for some is the suspension, especially on rougher roads. While the Softail monoshock offers improved ride quality over traditional Harley twin shocks, it still has limitations in terms of travel, and some riders report a firmer than desired ride, particularly over potholes or significant road imperfections. This can lead to a feeling of the bike being a bit harsh when encountering jarring impacts. There haven't been widespread, major mechanical recalls specific to the 2021 Sport Glide that indicate systemic failures. Harley-Davidson, in general, has focused on addressing potential issues through service bulletins and targeted recalls. For the 2021 model year, specific recalls might have been issued for minor components or software glitches that are not indicative of a fundamental design flaw. Long-term reliability of the Milwaukee-Eight 107 engine is generally considered good, with many owners reporting smooth operation and consistent performance with proper maintenance. However, like any V-twin engine, regular oil changes, filter replacements, and adherence to the service schedule are crucial for longevity. Electrical gremlins, while not prevalent, can occasionally be a concern with any motorcycle, and prompt attention to any warning lights or unusual behavior is advisable. Overall, the 2021 Sport Glide is considered a reliable machine, but like many motorcycles, aftermarket accessories and diligent maintenance play a significant role in long-term satisfaction and performance.
How long will the 2021 Harley-Davidson FLSB / Sport Glide last?
Based on owner feedback and the robust nature of Harley-Davidson's Milwaukee-Eight engine, a well-maintained 2021 FLSB Sport Glide can realistically achieve 100,000 miles or more. Regular servicing, including timely oil changes, filter replacements, and inspections, is paramount. The engine and drivetrain are known for their durability. Weaknesses that might emerge over time could include wear on suspension components and potentially the clutch if subjected to aggressive riding. The detachable bags and windshield are generally durable, but their mounting mechanisms should be checked for looseness. Electrical components are typically reliable, but as with any bike, exposure to elements can eventually lead to minor issues. Long-term durability is strong if the owner adheres to the maintenance schedule and addresses any minor issues promptly.
What Technology & Safety Features are Included?
The 2021 Harley-Davidson FLSB Sport Glide offers a blend of modern technology and classic motorcycle functionality. It comes standard with a bright LED headlight and taillight, enhancing visibility for both the rider and other road users. The digital instrument cluster is a clean, minimalist display featuring a speedometer, tachometer, gear indicator, fuel gauge, and clock. For convenience, keyless ignition allows the rider to start and secure the bike without fumbling for a key. Cruise control is also standard, a welcome feature for those longer highway stretches, significantly reducing rider fatigue. There is a USB charging port integrated into the dash, allowing for easy charging of smartphones or other devices. While the Sport Glide doesn't feature advanced driver-assistance systems like adaptive cruise control or blind-spot monitoring that are becoming more common in cars, its ABS (Anti-lock Braking System) is a crucial safety feature, preventing wheel lock-up during hard braking and contributing to rider stability. Optional features are more about customization and comfort; riders can opt for different windscreen heights, heated grips, or upgrade the audio system if they desire. Harley-Davidson does not typically undergo official crash-test ratings in the same way as automotive manufacturers, as motorcycles are inherently different in terms of safety design. However, the motorcycle's robust frame and braking systems, including ABS, are designed to enhance rider control and safety. The overall tech package is focused on essential rider aids and convenience, aligning with Harley's philosophy of a connected yet unfettered riding experience.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
2021 Harley-Davidson FLSB / Sport Glide Prices and Market Value
When new, the 2021 Harley-Davidson FLSB Sport Glide typically had an MSRP in the range of $18,999 to $19,499, depending on color and any minor factory options. As of late 2023/early 2024, the used market for a 2021 Sport Glide generally sees prices ranging from $14,000 to $17,000, heavily influenced by mileage, condition, and the presence of aftermarket modifications. Harley-Davidson motorcycles tend to hold their value relatively well, especially well-maintained examples. Depreciation is moderate, with the biggest drop occurring in the first few years. Factors that significantly affect resale value include low mileage, excellent condition (no damage or major cosmetic flaws), desirable color schemes, and the inclusion of popular factory options or tasteful aftermarket upgrades. A bike that has been diligently maintained according to Harley's schedule will command a higher price.
2021 Harley-Davidson FLSB / Sport Glide Cost of Ownership
Owning a 2021 Harley-Davidson FLSB Sport Glide is generally considered moderately costly. Insurance premiums can vary widely based on rider age, location, and coverage, but expect them to be higher than for many smaller Japanese cruisers. Fuel costs are reasonable, with its estimated 47 mpg being efficient for a V-twin. Maintenance is crucial; regular oil changes, filter replacements, and tire upkeep are standard. Repairs, especially for specialized Harley-Davidson parts or labor at dealerships, can be expensive. While not as economical as smaller bikes, its robust build and the availability of aftermarket parts can mitigate some costs. Long-term ownership is more of a financial commitment than a bargain, but many owners find the experience worthwhile.
2021 Harley-Davidson FLSB / Sport Glide Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
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2021 Harley-Davidson FLSB / Sport Glide Insurance
Insurance for a 2021 Harley-Davidson FLSB / Sport Glide is moderately priced, reflecting its status as a Motorcycle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2021 Harley-Davidson FLSB / Sport Glide Compare to Other Motorcycle?
The 2021 Harley-Davidson FLSB Sport Glide occupies a unique niche, often competing with a diverse set of rivals that might include other Harley-Davidson models, American cruisers from Indian, and even some Japanese touring-oriented machines.
Performance: In terms of outright acceleration and handling prowess, the Milwaukee-Eight 107 engine provides strong, torquey performance suitable for cruising and passing. Rivals like the Indian Chief Dark Horse or a Honda Gold Wing F6B might offer more refined power delivery or a sportier feel, respectively. The Sport Glide's performance is characterized by its laid-back, V-twin character.
Features: The Sport Glide's key differentiator is its modularity – detachable bags and windshield. This versatility is a significant advantage. The Indian Chief line offers premium finishes and, in some trims, more advanced technology. Japanese competitors like the Yamaha Tracer 9 GT (though a sport-tourer) or Kawasaki Vulcan S might offer more standard technology or creature comforts at a similar price point.
Reliability: Harley-Davidson has made significant strides in reliability, and the Softail platform is generally robust. However, some anecdotal evidence suggests that certain Japanese brands, such as Honda or Yamaha, might have a slight edge in long-term, trouble-free ownership due to their manufacturing consistency. Indian has also demonstrated good reliability in recent years.
Price: The 2021 Sport Glide was priced competitively within the cruiser/light-touring segment. Used prices remain strong. Alternatives like a used Indian Springfield or a Honda CTX700 (though a much smaller bike) could offer lower entry points.
Recommendations:
* Similar: Indian Springfield or Springfield Dark Horse (offers more classic styling and potentially more features, but less modularity).
* Alternative (Touring Focus): Honda Gold Wing F6B (more touring-oriented, different engine character, less customization).
* Alternative (Value/Sportier): Yamaha Tracer 9 GT (a sport-tourer, not a cruiser, but offers incredible performance and features for the price).
* Alternative (Classic Cruiser): Indian Chief Dark Horse (premium styling, potent engine, but less adaptable).
Performance: In terms of outright acceleration and handling prowess, the Milwaukee-Eight 107 engine provides strong, torquey performance suitable for cruising and passing. Rivals like the Indian Chief Dark Horse or a Honda Gold Wing F6B might offer more refined power delivery or a sportier feel, respectively. The Sport Glide's performance is characterized by its laid-back, V-twin character.
Features: The Sport Glide's key differentiator is its modularity – detachable bags and windshield. This versatility is a significant advantage. The Indian Chief line offers premium finishes and, in some trims, more advanced technology. Japanese competitors like the Yamaha Tracer 9 GT (though a sport-tourer) or Kawasaki Vulcan S might offer more standard technology or creature comforts at a similar price point.
Reliability: Harley-Davidson has made significant strides in reliability, and the Softail platform is generally robust. However, some anecdotal evidence suggests that certain Japanese brands, such as Honda or Yamaha, might have a slight edge in long-term, trouble-free ownership due to their manufacturing consistency. Indian has also demonstrated good reliability in recent years.
Price: The 2021 Sport Glide was priced competitively within the cruiser/light-touring segment. Used prices remain strong. Alternatives like a used Indian Springfield or a Honda CTX700 (though a much smaller bike) could offer lower entry points.
Recommendations:
* Similar: Indian Springfield or Springfield Dark Horse (offers more classic styling and potentially more features, but less modularity).
* Alternative (Touring Focus): Honda Gold Wing F6B (more touring-oriented, different engine character, less customization).
* Alternative (Value/Sportier): Yamaha Tracer 9 GT (a sport-tourer, not a cruiser, but offers incredible performance and features for the price).
* Alternative (Classic Cruiser): Indian Chief Dark Horse (premium styling, potent engine, but less adaptable).
Final Verdict: Is the 2021 Harley-Davidson FLSB / Sport Glide a Good Motorcycle?
The 2021 Harley-Davidson FLSB Sport Glide is an excellent choice for riders seeking a versatile cruiser that can adapt to various riding scenarios. It's ideal for those who enjoy the classic Harley-Davidson aesthetic and V-twin rumble but desire more practicality than a traditional cruiser offers. Commuters will appreciate its ability to shed bags for a slimmer profile, while weekend riders can easily attach them for short trips. It's worth buying for its blend of style, performance, and surprising utility. Buying used is highly recommended, as it offers significant savings over new pricing while still providing a modern, reliable machine. Focus on well-maintained examples with lower mileage to maximize long-term satisfaction. While not a dedicated touring bike, its capabilities make it a compelling all-rounder.
2021 Harley-Davidson FLSB / Sport Glide Owner Reviews
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Eugene S
Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.