2000+ Bike Shops
Expert Assembly by Beeline Dealers
UL 2849 Certified
Bosch System UL 2849 Certified
TWENTY4 E
The little ones want to shred too! Our 24-inch hardtail eMTB offers up-and-coming riders the same high-quality components as the big kids.
$1,499.00
$2,999.00
Save $1,500
FEATURES
TWENTY4 E
- The BULLS Twenty4 E is a premium electric bike crafted specifically for younger riders. Designed with the same top-tier components and engineering found in adult eBikes, it ensures safety, comfort, and confidence on any ride. Whether commuting to school, joining family outings, or tackling light off-road trails, this eBike stands out with Bosch-powered performance, kid-specific geometry, and modern styling.
Motor and Battery
- Motor: Driven by the Bosch Active Line Plus motor, the Twenty4 E provides a smooth and quiet ride with 50Nm of torque. This system is perfect for younger riders who want a boost on hills and longer trips without overwhelming power. It supports pedal assist up to 20 mph.
- Battery: Equipped with a Bosch PowerPack 500Wh battery, it delivers dependable range and long-lasting performance, allowing young riders to go the distance alongside adult companions. The battery is mounted low for optimal balance and safety.
- Charging: Rechargeable in approximately 4.5 hours with the Bosch 4A charger, making it easy to top off overnight or between rides.
Suspension and Frame
- Fork: A SR Suntour XCT-JR L 24” fork with 80mm of travel helps absorb bumps and shocks from uneven roads and trails, giving a smoother and more controlled ride.
- Frame: Constructed from 7005 aluminum, the frame is lightweight, durable, and designed with geometry tailored for youth riders. Internal cable routing contributes to a sleek and clean appearance. Offered in a 32 cm frame size to suit a wide range of younger riders.
Drivetrain and Brakes
- Gears: The Shimano Alivio 8-speed drivetrain gives reliable and precise gear changes, with enough range for climbing hills or cruising on flats. Ideal for riders who want a responsive setup that grows with their skill level.
- Brakes: Fitted with Tektro HD-M286 hydraulic disc brakes and 160mm rotors front and rear, the Twenty4 E offers excellent braking control and safety in all riding conditions, including wet or downhill sections.
Wheels and Tires
- Wheels: The 24-inch wheels strike a balance between stability and nimbleness, making the bike easier to maneuver while still handling rough paths and gravel confidently.
- Tires: Outfitted with Schwalbe Black Jack 24 x 2.10” tires, these all-terrain tires offer strong traction and low rolling resistance. Their versatile tread makes them suitable for both pavement and light trail use.
Additional Features
- Display: The Bosch Purion display provides essential ride data including speed, range, and assist level. It's easy to navigate and highly visible, even in sunlight—perfect for younger riders to stay informed and in control.
- Pedals: Comes with Wellgo pedals for secure foot grip and durability, supporting comfort and control during all types of rides.
- Saddle: The STYX youth saddle is ergonomically designed for younger riders, ensuring comfort over long rides and optimal support for developing riders.
Technology and Design
-
- Class-1 eBike: Offers pedal assist up to 20 mph without a throttle, making it a safe and compliant option for younger riders in most areas.
- Kid-Optimized Geometry: Every aspect of the Twenty4 E is designed with youth in mind—from the shorter reach and lower standover height to the balance and responsiveness of the ride feel.
Key Takeaways
- The BULLS Twenty4 E brings premium eBike technology to the younger generation. Its Bosch powertrain, safety-focused components, and thoughtfully designed frame make it the perfect ride for kids who want to explore more, keep up with the family, or just experience the joy of eBiking. Whether it's school days or weekend trails, this bike delivers freedom, fun, and confidence in every ride.
BULLS Review: Extend your kids' outdoor adventures with the Twenty4 E from BULLS, epowered with the Bosch Active Line Plus motor and 500Wh battery.
EBR Review: The BULLS TWENTY4 E is a tough, sporty looking, high-quality, kids electric bike.
| Frame Size | 32(CM) | ||
|---|---|---|---|
| Seat Tube Length | A | 320mm | |
| Top Tube Length | B | 515mm | |
| Chain Stay Length | C | 430mm | |
| Bottom Bracket Offset | D | 30mm | |
| Head Tube Length | E | 120mm | |
| Head Tube Angle | α | 71° | |
| Seat Tube Angle | β | 73° | |
| Standover Height | 690mm | ||
| Wheelbase | 1040mm | ||
| Reach | 354mm | ||
| Stack | 528mm | ||
Active Plus Motor
The Bosch Active Line Plus (250W) motor is a versatile and reliable choice for e-bike enthusiasts, particularly those who enjoy city commuting and occasional countryside rides. This motor offers a smooth and natural riding experience, thanks to its quiet operation and direct drive system. Unlike its predecessor, the Active Line, the Plus version is significantly quieter, almost to the point of being functionally silent during most rides. It provides up to 50Nm of torque, which is sufficient for most urban and light off-road conditions. The motor’s design allows for a seamless integration into modern e-bike frames, contributing to a balanced and aesthetically pleasing look. One of the standout features of the Bosch Active Line Plus is its efficiency and responsiveness. The motor supports a cadence of 75-85 rpm, making it ideal for maintaining a steady pace without feeling the motor’s assistance limit. It also adapts quickly to changes in pedaling force, providing a consistent and natural feel. The motor’s freewheel has minimal movement before engagement, ensuring a smooth transition when you start pedaling. Additionally, the motor is compatible with various Bosch displays, such as the Purion and Kiox, which offer different levels of functionality and connectivity. Overall, the Bosch Active Line Plus is a testament to German engineering, offering a quiet, powerful, and unobtrusive riding experience.
Purion Display
The Bosch Purion display is a compact and user-friendly control unit designed for e-bikes. It combines essential functions into a minimalist design, making it ideal for riders who prefer a straightforward and unobtrusive interface. The display is mounted on the handlebar and features a small screen that shows key information such as speed, battery level, and assistance mode. Its intuitive button layout allows riders to easily switch between different levels of motor assistance and access trip data without taking their hands off the handlebars. The Purion is particularly appreciated for its simplicity and ease of use, making it a popular choice among commuters and casual riders. One of the main advantages of the Bosch Purion is its durability and reliability. The display is built to withstand various weather conditions, ensuring consistent performance in both rain and shine. It also has a backlit screen, which enhances visibility in low-light conditions, making it suitable for early morning or evening rides. Additionally, the Purion is compatible with all Bosch e-bike motors, providing seamless integration and consistent performance across different bike models. Its compact size and ergonomic design contribute to a clean and organized handlebar setup, allowing riders to focus on the road ahead. Overall, the Bosch Purion offers a practical and efficient solution for e-bike control, combining essential features with a user-friendly interface.
PowerPack 500
The Bosch PowerPack 500 is a high-performance battery designed for e-bikes, offering a robust and reliable power source for extended rides. With a capacity of 500 watt-hours, it provides ample energy to tackle long distances and challenging terrains. The battery is known for its efficiency and durability, featuring advanced lithium-ion technology that ensures maximum energy density and a long lifespan. Its compact and lightweight design, weighing around 5.7 pounds, makes it easy to handle and transport, whether mounted on the bike or carried as a spare. The PowerPack 500 is also equipped with an integrated handle and a 5-LED charge level indicator, allowing riders to easily check the battery status at a glance. One of the key advantages of the Bosch PowerPack 500 is its compatibility with various Bosch e-bike systems, including the Performance Line and Performance Line CX. This versatility makes it a popular choice among e-bike manufacturers and riders alike. The battery can be charged either on or off the bike, providing flexibility and convenience for different charging scenarios. Additionally, the PowerPack 500 is designed to withstand the rigors of daily use, with a durable casing that protects it from impacts and environmental factors. Overall, the Bosch PowerPack 500 is a reliable and efficient power solution that enhances the performance and range of e-bikes, making it a favorite among e-bike enthusiasts.