Mongoose Legion Mag Kids Freestyle or Mongoose Legion L20 20" BMX? Which Mongoose Model to Buy
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We compare the mongoose legion mag kids freestyle vs legion l20 20 bmx to help you pick the right bike. Both models feature 20-inch wheels and are built for young riders starting their BMX journey. The main difference lies in their construction and target skill level. The Mag uses a heavy steel frame with mag wheels for basic street riding. The L20 targets taller teens with a lighter build and chromoly cranks for more serious tricks. Choosing between them depends on your child's size and riding goals.
Key differences
| Aspect | Mongoose Legion Mag 20-Inch BMX Bike | Mongoose Legion L20 20-Inch Freestyle BMX Bike |
|---|---|---|
| Frame Material | Hi-Ten Steel | Not listed |
| Weight | 32 pounds | 28.6 pounds |
| Tire Type | Aluminum mag wheels | 2.3-inch tires |
| Crank | Not listed | 3-piece chromoly |
| Target Height | Less than 3'6" - 6'0" | 5'3" - 6'0" |
Which one should you choose?
Choose Mongoose Legion Mag 20-Inch BMX Bike if
- You want a durable steel frame for a younger or smaller child.
- You prefer the classic look and low maintenance of mag wheels.
- Your rider is on the shorter end of the height range.
Choose Mongoose Legion L20 20-Inch Freestyle BMX Bike if
- You need a lighter bike for easier handling and tricks.
- Your rider is tall, specifically 5'3" or taller.
- You want chromoly cranks for better durability during stunts.
Verdict: The Legion Mag is a solid choice for younger kids or beginners who value durability and simple maintenance. The L20 is better suited for taller teens who are ready for more serious freestyle riding and need a lighter, more responsive bike.
Legion Mag vs Legion L20 Specs
Frame Material
The Mongoose Legion Mag uses a hi-ten steel frame. This material is known for being tough and durable for young riders who are just starting out. It provides a solid foundation for neighborhood riding. In contrast, the Mongoose Legion L20 features a lightweight 3-piece chromoly crank. While the frame material for the L20 is not explicitly listed in the provided data, the use of chromoly in the crankset suggests a focus on lighter weight and higher strength. Chromoly is a standard upgrade in freestyle BMX for better performance and durability during tricks. For serious riding, chromoly components generally offer a better strength-to-weight ratio than standard steel.
Weight
Weight is a critical factor for handling, especially when performing tricks or lifting the bike. The Mongoose Legion Mag weighs 32 pounds. This heavier build can make the bike feel more stable but harder to maneuver for aerial maneuvers. The Mongoose Legion L20 weighs 28.6 pounds. This significant weight difference of over three pounds makes the L20 noticeably lighter. A lighter bike is easier to accelerate, lift into the air, and control during technical sessions. For riders who want to improve their skills quickly, the reduced weight of the L20 provides a clear mechanical advantage in handling and responsiveness.
Target Audience
The Mongoose Legion Mag is marketed specifically for kids, girls, and boys who are beginners. It is designed to give young riders their first taste of riding like pros, with a focus on durability for casual use. The Mongoose Legion L20 targets kids and teens who are progressing beyond the basics. It is built for riders between 5'3" and 6'0" tall. The L20 is designed for park, street, and everyday riding where skills are advancing. If you are looking for a bike for a complete novice, the Mag is tailored for that entry point. If you have a teen who is ready for more serious freestyle riding, the L20 is the appropriate choice.
Brake Type
Braking performance is essential for safety and control during tricks. The Mongoose Legion Mag is equipped with alloy rear U-brakes. These provide secure stops for safety and control when performing tricks on the sidewalk or in the park. The brake specifications for the Mongoose Legion L20 are not listed in the provided data. However, the L20 is built for more serious riding, which typically requires reliable stopping power. Without explicit details on the L20's brakes, we cannot definitively compare the two systems. The Mag offers a known, functional braking solution suitable for beginner riders who need dependable stopping power.
Wheel Size
Both the Mongoose Legion Mag and the Mongoose Legion L20 feature 20-inch wheels. This is the standard size for freestyle BMX bikes, offering a good balance of agility and stability. The wheel size allows for a compact frame that is easy to maneuver. Since both models share this key specification, there is no difference in the fundamental geometry related to wheel diameter. This commonality means that the riding feel regarding wheel rotation and size will be identical. The choice between these two models will not be influenced by wheel size, as both are designed around the same 20-inch standard.
Which Mongoose BMX Should You Choose
Beginner riders under 5 feet tall
The Legion Mag is built for smaller riders. It features a durable hi-ten steel frame that withstands early learning crashes. The 32-pound weight is manageable for younger users. Alloy rear U-brakes offer reliable stopping power. This bike provides a solid entry point for kids exploring neighborhood streets or local skateparks without overwhelming complexity.
Teens progressing to serious freestyle tricks
The Legion L20 targets taller riders with a 28.6-pound lightweight build. Its 3-piece chromoly crank delivers better power transfer for jumps and stunts. Wide 2.3-inch tires provide confident traction on varied surfaces. The 9T sealed rear hub ensures smooth rolling performance. This model handles repeated landings and more intense riding sessions with greater durability.
Riders prioritizing lightweight performance and speed
At 28.6 pounds, the Legion L20 is significantly lighter than the Mag. This reduced weight makes acceleration and maneuvering easier during park sessions. The chromoly crankset is a step up from standard steel components. Sealed bearings in the rear hub reduce friction. These specs combine to create a bike that feels quicker and more responsive for riders advancing their technical skills.
The products compared
Mongoose Legion Mag 20-Inch BMX Bike
Best for: beginner kids wanting stylish durability
- Wheel Size
- 20-Inch
- Frame Material
- Hi-Ten Steel
- Brake Type
- Alloy rear U-brakes
- Target Audience
- Kids, Girls and Boys
- Weight
- 32 pounds
View on Amazon: Mongoose Legion Mag 20-Inch BMX Bike Affiliate link
This Mongoose Legion Mag is a 20-inch kids BMX bike built for beginner riders. It features a durable hi-ten steel frame and stylish aluminum mag wheels. The bike includes sealed bearings for smooth riding and alloy rear U-brakes for secure stopping. Weighing 32 pounds, it is designed for boys and girls who want to perform tricks or ride in the neighborhood. It fits riders up to 6'0" tall.
Pros
- Aluminum mag wheels for bold style
- Hi-ten steel frame for durability
- Alloy rear U-brakes for control
- Sealed bearings for smooth performance
Cons
- Hi-ten steel frame adds weight
- 32-pound weight is heavy for kids
- Only rear brake included
Good fit if
- You want a durable starter bike for tricks
- You prefer the look of aluminum mag wheels
- Your child is under 6'0" tall
Skip if
- You need a lightweight bike for racing
- You require front and rear brakes
- You want a steel-free frame
Verdict: Mongoose Legion Mag 20" Kids BMX is a sturdy option for young riders who prioritize durability and style over low weight. It suits beginners who want to practice tricks on a tough hi-ten steel frame with eye-catching mag wheels.
Mongoose Legion L20 20-Inch Freestyle BMX Bike
Best for: Teens progressing to serious freestyle riding
- Wheel Size
- 20-inch
- Tire Width
- 2.3-inch
- Target Audience
- Kids & Teens
- Dimensions
- 57.4 × 30.1 × 39.3 inches
- Weight
- 28.6 pounds
View on Amazon: Mongoose Legion L20 20-Inch Freestyle BMX Bike Affiliate link
The Mongoose Legion L20 is a 20-inch BMX built for riders between 5' 3" and 6' 0". It features wide 2.3-inch tires for traction on pavement and park surfaces. The lightweight 3-piece chromoly crank and sealed rear hub support serious tricks and landings. This model suits teens progressing beyond beginner basics. It offers durable components for street and everyday riding.
Pros
- 20-inch wheels fit riders 5' 3" to 6' 0"
- Wide 2.3-inch tires provide confident traction
- Lightweight 3-piece chromoly crank for durability
- 9T sealed rear hub with 14 mm axle
Cons
- Heavier at 28.6 pounds compared to lighter freestyle builds
- No mention of a coaster brake for easy stopping
- Limited to 20-inch wheel size for taller riders
Good fit if
- You are between 5' 3" and 6' 0" tall
- You want wide tires for better grip
- You need a durable crank for tricks
Skip if
- You are taller than 6' 0"
- You prefer a lighter frame under 25 pounds
- You need a coaster brake for safety
Verdict: Mongoose Legion L20 20" BMX fits teens seeking durable components for park and street riding. Its wide tires and chromoly crank support serious skill development for riders within its height range.
Specifications side by side
| Spec | Mongoose Legion Mag 20-Inch BMX Bike | Mongoose Legion L20 20-Inch Freestyle BMX Bike |
|---|---|---|
| Wheel Size | 20-Inch | 20-inch |
| Frame Material | Hi-Ten Steel | not stated |
| Brake Type | Alloy rear U-brakes | not stated |
| Tire Width | not stated | 2.3-inch |
| Target Audience | Kids, Girls and Boys | Kids & Teens |
| Weight | 32 pounds | 28.6 pounds |
| Dimensions | not stated | 57.4 × 30.1 × 39.3 inches |
| Size | 20-Inch Wheels/MAG | 20-Inch Wheels/L20 |
| Color | Orange | Mint |
| Model | M41707M70OS | M4146G27U1OS11 |
Frequently asked questions
Is the Mongoose Legion Mag good for beginners?
Yes, it is ideal for young riders starting out. The hi-ten steel frame offers sturdy durability for learning tricks. Its 32-pound weight is manageable for smaller kids. The mag wheels add style while maintaining toughness for neighborhood riding.
What is the weight difference between the two models?
The Legion Mag weighs 32 pounds, while the Legion L20 is lighter at 28.6 pounds. The L20’s reduced weight benefits teens progressing to serious freestyle. The Mag’s heavier frame prioritizes impact resistance for beginners over speed.
Does the Legion L20 have a chromoly crank?
Yes, the Legion L20 features a chromoly crank. This component supports serious skill development for park and street riding. It provides stronger durability compared to standard steel parts, making it suitable for teens advancing their freestyle techniques.
Which bike is better for teens?
The Legion L20 is better for teens. It is designed for riders progressing to serious freestyle riding. The bike includes wide tires and a chromoly crank for durability. Its lighter 28.6-pound weight aids performance for older, taller users.
What frame material does the Legion Mag use?
The Legion Mag uses a hi-ten steel frame. This material is known for being tough and durable. It provides a solid foundation for young riders who prioritize longevity over low weight. The steel construction withstands early learning crashes well.
Are the wheels the same size on both bikes?
Yes, both models feature 20-inch wheels. The Legion Mag has mag wheels, while the Legion L20 has standard L20 wheels. Both sizes suit young riders starting their BMX journey. The consistent wheel size ensures similar handling characteristics for beginners.
What is the Legion L20 best for?
It is best for teens progressing to serious freestyle riding. The bike offers durable components for park and street use. Wide tires and a chromoly crank support skill development. It fits riders within its specific height range for optimal control.