Street legal mini bikes are becoming very popular in 2025. These small motorcycles are designed for city streets, offering lightweight frames and easy handling. Many adults choose them because they are affordable, fuel-efficient, and simple to ride. Mini motorcycles also require less space for parking and storage, which makes them practical in busy urban areas. In this guide, you will find the best street legal mini bikes for adults, each model fully approved for road use and ready for everyday travel.
- Honda Grom 2025
- Honda Monkey 125
- Honda Navi 2025
- Kawasaki Z125 Pro
- Benelli TNT135
- CFMOTO Papio XO-1 / XO-2
- SSR Razkull 125
- Honda ST125 Dax
What Makes a Mini Bike Street Legal?
A street legal mini bike is a small motorcycle that meets the same road requirements as larger models. To qualify, it must pass safety inspections and be eligible for registration. Without these features, a mini bike can only be used off-road or on private property.
For road use, a mini motorcycle must have headlights, brake lights, turn signals, mirrors, a horn, and a license plate bracket. These parts make it safe to ride in traffic and allow it to follow road regulations.
Engine size is also important. Most street legal mini bikes range from 50cc to 150cc. This provides enough speed and strength for city riding while keeping the motorcycle compact and easy to handle. With proper registration, these bikes are treated like any other small motorcycle on public streets.
1. Honda Grom 2025 (MSX125)
Specifications
- Engine: 124.9cc air-cooled single-cylinder
- Power: 9.7 hp
- Transmission: 5-speed manual
- Top Speed: around 60 mph
- Seat Height: 30 inches
- Weight: 227 lbs
- Price: usually between $3,500 and $3,800, depending on trim and ABS option.
The Honda Grom is the most recognized street legal mini bike available in 2025. It combines compact size with full motorcycle features, making it popular with beginners and city riders. The 124.9cc engine is strong enough for daily travel while still simple to control. Riders can reach speeds close to 60 mph, which is suitable for short commutes and urban roads.
The design is practical yet playful. Its small frame makes parking and handling easy, even in crowded areas. The low seat height allows most adults to ride comfortably. The Honda Grom also supports a wide aftermarket, which means owners can customize it with different exhausts, fairings, and street legal kits. This flexibility helps the bike remain stylish and personal.
Honda built the Grom to meet strict road safety rules. It includes headlights, mirrors, indicators, and a strong braking system. Because of this, it can be registered and insured like any other motorcycle. Many riders see it as the best entry into mini motorcycles for adults, offering both fun and legal reliability at a fair price.
2. Honda Monkey 125 (2025)
Specifications
- Engine: 124cc air-cooled single-cylinder
- Power: 9.3 hp
- Transmission: 5-speed manual
- Top Speed: around 55 mph
- Seat Height: 30.5 inches
- Weight: 231 lbs
- Price: typically sells for $4,200 to $4,500, slightly higher due to its retro design.
The Honda Monkey 125 is a modern mini motorcycle with a classic look. Its design comes from the original Monkey bikes of the 1960s but now includes current safety and performance features. The small frame and wide tires make it easy to handle on city streets, while the air-cooled 124cc engine provides enough power for regular commuting.
Riders often choose the Monkey because of its unique retro style. The round headlight, chrome details, and bright color options give it strong personality. Despite its playful look, it is built with serious attention to safety. The model includes ABS on some versions, strong brakes, and a suspension system that can manage bumps and uneven roads.
The Monkey 125 is a fully street legal mini bike that comes ready for registration. It has all required lights, mirrors, and signals. Its compact size makes it practical for new riders, while its style attracts experienced riders who want something different. With proven Honda reliability, the Monkey is a smart option for adults looking for both fun and dependable city transport.
3. Honda Navi 2025
Specifications
- Engine: 109cc air-cooled single-cylinder
- Power: 7.8 hp
- Transmission: Automatic CVT
- Top Speed: around 50 mph
- Seat Height: 30 inches
- Weight: 236 lbs
- Price: one of the most affordable choices, found around $1,900 to $2,100 at most dealers.
The Honda Navi 2025 is one of the most affordable street legal mini motorcycles available today. It combines the design of a mini bike with the ease of a scooter. The automatic CVT transmission removes the need for manual shifting, making it simple for beginners or casual riders. Its 109cc engine provides smooth performance for city travel and short-distance rides.
The Navi is compact and light, which makes it easy to move through traffic. Its upright seat design gives comfort, while the small wheels allow quick handling on busy streets. Riders also value the practical storage space built into the body, something unusual in this category.
This model is fully street legal, equipped with the required lights, mirrors, and turn indicators. It is suitable for adults who want a legal mini motorcycle that is affordable and efficient. Because of its price and low running costs, the Navi is a popular choice for first-time owners who want reliable daily transport without the higher cost of larger motorcycles.
4. Kawasaki Z125 Pro (2025)
Specifications
- Engine: 125cc air-cooled single-cylinder
- Power: 9.5 hp
- Transmission: 4-speed manual
- Top Speed: around 65 mph
- Seat Height: 31.7 inches
- Weight: 224 lbs
- Price: generally offered at $3,500 to $3,700, close to the Honda Grom but sportier in style.
The Kawasaki Z125 Pro 2025 is a compact motorcycle built with sport styling. It belongs to Kawasaki’s Z series, which is known for aggressive looks and responsive handling. The Z125 Pro takes those features and adapts them into a small, road-legal package. Its 125cc engine delivers enough power for city travel, and the 4-speed transmission gives control that appeals to riders who want more engagement.
The design sets it apart from many other mini bikes. The sharp bodywork, raised tail, and digital display give it the feel of a miniature sportbike. Its slightly taller seat height also makes it suitable for a wider range of adult riders. The suspension system is firm, which improves stability on smooth roads and helps with precise cornering.
The Z125 Pro includes all legal equipment such as headlights, turn signals, and mirrors, which makes it ready for registration. It is often compared directly to the Honda Grom, but it provides a different character with its styling and handling. For riders who want a street legal mini motorcycle that looks sporty and feels more performance-focused, the Kawasaki Z125 Pro is a strong choice.
5. Benelli TNT135 (2025)
Specifications
- Engine: 135cc air-cooled single-cylinder
- Power: around 11 hp
- Transmission: 5-speed manual
- Top Speed: around 65 mph
- Seat Height: 30.7 inches
- Weight: 267 lbs
- Price: usually between $3,000 and $3,200
The Benelli TNT135 is one of the strongest competitors in the mini motorcycle category. It offers a slightly larger 135cc engine, giving more power than most rivals such as the Honda Grom or Kawasaki Z125 Pro. With a top speed of around 65 mph, it provides enough strength for short commutes, spirited rides, and daily urban travel.
The TNT135 stands out for its sporty styling. The exposed trellis frame, aggressive tank design, and modern LED lighting make it look like a scaled-down sport bike. The 30.7-inch seat height offers a comfortable position for adult riders, while the stable chassis and suspension improve handling on city roads.
This model is fully street legal and comes with all required road equipment, including headlights, mirrors, and turn signals. Riders choose the TNT135 because it delivers strong value with extra performance, while still keeping the compact size and fun handling that define mini motorcycles. For those who want more power without losing agility, the Benelli TNT135 is a smart choice in 2025.
6. CFMOTO Papio XO-1 / XO-2 (2025)
Specifications
- Engine: 126cc air-cooled single-cylinder
- Power: 9.4 hp
- Transmission: 6-speed manual
- Top Speed: around 60 mph
- Seat Height: 30.5 inches
- Weight: 251 lbs
- Price: positioned in the $2,900 to $3,300 range, depending on the model and market.
The CFMOTO Papio XO-1 and XO-2 are new entries in the mini motorcycle market for 2025. Both models take the compact proportions of a mini bike and add unique styling. The XO-1 has a café-inspired design with clip-on handlebars and a sport look, while the XO-2 has a mini-scrambler design with raised bars and a more upright position. Riders can select based on their style preference without losing performance.
The 126cc engine is slightly larger than many rivals, giving smooth power for city travel and light highway use. The 6-speed transmission offers flexibility for different riding conditions, and the suspension is tuned for comfort on urban streets. With modern digital displays and LED lighting, the Papio stands out as a fresh choice in the street legal mini bike category.
Both XO-1 and XO-2 models meet full road standards with lights, mirrors, and safety equipment included. They can be registered as motorcycles in most regions. For riders who want a street legal mini motorcycle with a distinctive design and competitive price, the CFMOTO Papio series provides a strong alternative to the more established Honda and Kawasaki options.
7. SSR Motorsports Razkull 125 (2025)
Specifications
- Engine: 124cc air-cooled single-cylinder
- Power: 8.5 hp
- Transmission: 5-speed manual
- Top Speed: around 55 mph
- Seat Height: 30.5 inches
- Weight: 225 lbs
- Price: commonly listed at $2,100 to $2,400, making it a budget-friendly alternative to the Grom.
The SSR Razkull 125 is a compact motorcycle that offers the look and function of a street legal mini bike at a lower cost than many competitors. It carries a 124cc engine with steady performance for city rides and short trips. The 5-speed transmission allows better control over speed and makes it suitable for riders who want a simple but engaging ride.
The design of the Razkull is inspired by the popular Honda Grom, but it uses sharper body lines and a sport-style headlight for its own identity. The upright riding position provides comfort, while the small frame makes it easy to handle in traffic. Its lightweight build supports quick movement through crowded streets.
This motorcycle comes equipped with headlights, mirrors, and turn signals, making it fully road legal. It is available at a budget-friendly price, which attracts new riders and those who want a second bike for casual use. The Razkull 125 is not as refined as Honda or Kawasaki models, but it delivers good value as a street legal mini motorcycle with enough strength for daily commuting.
8. Honda ST125 Dax (2025)
Specifications
- Engine: 124cc air-cooled single-cylinder
- Power: around 9 hp
- Transmission: 4-speed semi-automatic
- Top Speed: around 60 mph
- Seat Height: 30.5 inches
- Weight: 238 lbs
- Price: usually between $4,000 and $4,500
The Honda ST125 Dax is a modern revival of a classic mini motorcycle first launched in the 1960s. Its name comes from its distinctive pressed-steel frame shaped like a Dachshund, which makes it instantly recognizable. The 2025 model keeps the retro look while adding reliable modern components, making it one of the most stylish mini bikes available today.
The 124cc engine provides smooth power delivery and enough performance for daily city rides. With a semi-automatic 4-speed transmission, riders enjoy easy gear changes without the need for a clutch, which makes it beginner-friendly. Despite its compact size, the Dax is comfortable for adult riders thanks to its upright seating and balanced ergonomics.
Honda equips the ST125 Dax with all the required road gear, including LED lights, mirrors, turn signals, and disc brakes. This ensures it is fully street legal in most regions. For riders who want a street legal mini bike that blends heritage design with modern reliability, the Honda ST125 Dax is a premium choice in 2025.
Comparison Table: 2025 Street Legal Mini Bikes
If you want to see all eight models side by side, this quick chart shows the key details. It highlights engine size, top speed, and average price range so you can compare them before choosing the right street legal mini motorcycle for your needs.
| Model | Engine | Top Speed | Price Range | Best For |
| Honda Grom 2025 | 124 cc | ~60 mph | $3,500 – $3,800 | Easy ride, versatile daily use |
| Honda Monkey 125 | 124 cc | ~55 mph | $4,200 – $4,500 | Retro design lovers |
| Honda Navi 2025 | 109 cc | ~50 mph | $1,900 – $2,100 | Budget-friendly daily travel |
| Kawasaki Z125 Pro | 125 cc | 60–65 mph | $3,500 – $3,700 | Sporty style, precise control |
| Benelli TNT135 | 135 cc | ~65 mph | $3,000 – $3,200 | Extra power, sporty alternative |
| CFMOTO Papio XO-1/2 | 126 cc | ~60 mph | $2,900 – $3,300 | Unique design, modern feel |
| SSR Razkull 125 | 124 cc | ~55 mph | $2,100 – $2,400 | Affordable fun mini motorcycle |
| Honda ST125 Dax | 124 cc | ~60 mph | $4,000 – $4,500 | Heritage design, premium option |
💡 Note: Prices are approximate and can vary by dealer, region, and model year.
How to Choose the Right Street Legal Mini Bike for You
The first thing you should consider is engine size. If you are new to riding, a smaller engine such as 109cc will give you smoother control. If you already have some experience, a 125cc bike will provide more speed and stronger acceleration.
Comfort is also important. Check the seat height and overall weight before making a decision. A bike like the Honda Navi is light and easy to manage, while the Kawasaki Z125 Pro sits taller and may feel better if you are a larger rider.
Your budget matters as well. Honda and Kawasaki models cost more but deliver stronger quality and proven reliability. Options like the SSR Razkull or Honda ST125 Dax cost less and still allow you to own a legal motorcycle without spending too much.
You should also consider design and purpose. If you want a retro style with modern safety, the Honda Monkey is the right choice. If you prefer sporty looks and sharper handling, the Z125 Pro, TNT135, or Papio XO-1 may suit you better.
Finally, think about long-term use. A bike with wide parts availability and service support, such as Honda or Kawasaki, will be easier to maintain. Smaller brands may cost less at the start but can require more effort later. Choosing the right model depends on what you value most: affordability, style, or proven dependability.
FAQs
Are mini motorcycles street legal?
Yes, some mini motorcycles are fully street legal. They must include headlights, turn signals, mirrors, a horn, and a license plate bracket. They also need to meet safety and emission rules. Without these features, a mini bike is limited to private property or off-road use.
What is the smallest street legal motorcycle?
The smallest street legal motorcycles usually use engines between 50cc and 110cc. Models like the Honda Navi and Honda ST125 Dax are among the most compact that can still be registered for city use. Anything smaller is typically classed as a pocket bike and not legal for public roads.
Can a pocket bike be street legal?
Most pocket bikes are not street legal. They are too small to meet road safety standards and often lack the required lights and mirrors. Some larger pocket-style bikes with 125cc engines can be modified for registration, but this depends on local laws.
How fast can a mini bike go?
Speed depends on the engine size. A 109cc model like the Honda Navi reaches around 50 mph. A 125cc mini motorcycle such as the Honda Grom, Kawasaki Z125 Pro, or Benelli TNT135 can reach 60 to 65 mph. These speeds are safe for city travel but not for extended highway use.
Can you ride a mini bike on the highway?
Most street legal mini bikes are not designed for highway speeds. They are best suited for city streets, short commutes, and local rides. Riding them on highways can be unsafe due to limited power and lightweight design. Always check your local laws before using a mini bike on faster roads.
What is the difference between a mini bike and a scooter?
A mini bike is a small motorcycle with either manual gears or sometimes automatic transmission. A scooter usually has a step-through frame, more storage, and a fully automatic drive. Both can be street legal if they meet safety requirements, but mini bikes are designed to handle more like motorcycles.
Are mini bikes good for adults?
Yes, many mini motorcycles are built for adult riders. Models like the Honda Grom, Honda Monkey, Benelli TNT135, and Honda ST125 Dax are strong enough for daily commuting. They are compact in size but still reliable, practical, and comfortable for adults.
