THE B1: DIY ELECTRIC MOTO MADE EASY
The Bomb Moto B1 rolling chassis is an affordable eMoto solution for the DIY enthusiast. Add a battery, controller, throttle... and go!
At $1099 USD, the B1 is your gateway to electric off-roading. Learn more about this exciting electric dirt bike below!
ORDER TODAY - Limited in stock with new inventory being added daily.
2026 B1 Rolling Chassis w/Motor
The new 2026 B1 Rolling Chassis with Motor is a major upgrade to the popular B1 platform. Designed for the DIY modder, this combo allows for maximum customization. Add your preferred non-Bomb Moto controller, battery and throttle to our rolling chassis and motor for a build that's totally yours.
The 2026 B1 Rolling Chassis with Motor comes with a special QS 120 45H motor developed in collaboration with Bomb Moto and QS Motor. Engineered for performance, this motor features the highest RPM rating on any QS motor and can comfortably handle 100 peak amps, delivering exceptional torque and power.
Using the B1 chassis/motor platform, builders can push their custom setups past 50+ mph, unlocking thrilling speed and unreal torque. Even at a modest tune of 70 amps, the B1 can hit 45 mph and peak at 8,500 RPM, making it one of the most versatile and exciting platforms in the electric pit bike category.
NEW Product Upgrades
New 1,000 lb rear shock • #35 chain and sprockets • New, taller aluminum handlebar with cross bar • Upgraded master brake cylinder • Strengthening welds to seat and swingarm • Standard rim locks • Blacked-out triple clamp & riser • Improved number plate mount • Improved fasteners
B1 HIGHLIGHTS
• An affordable DIY electric dirt bike platform
• Mid-drive motor (recommended 5kW peak power)
• 45 mph recommended top speed
• High-performance moto brakes w/ergonomic levers
• Ships from a US company in California
• Just add battery, controller/cable... and go!
• Bomb Moto battery available
Tested & Proven
The B1 has been aggressively tested in real-world conditions, resulting in dozens of enhancements to the latest model. Enjoy peace of mind from hundreds of hours of R&D in the Bomb lab.
Your Platform for Customization
Bomb Moto puts creativity in the customer's hands. Add your preferred battery, controller and throttle to build a custom e-moto bike - for much less than buying a complete bike!
MINI MOTO. BIG FUN.
Sized similar to a 110 cc trail bike, the B1 chassis has a 28-inch seat height and 2-inch lowered footpegs for increased legroom.It's a great fit for youth, newer riders and adults seeking a fun DIY pit bike project.
KEY FEATURES
Specifications
Motor
QS120 70H BLDC inner rotor motor, 60mm magnets, 5 poles
Rating: 4,900rpm (higher w/ flux)
Rated: 2,000w, 80a, 72v, 120NM torque
Peak Power: 11kw
Top Speed: 50mph+ (depending on controller/tune)
Recommended Tune: 125a (150a peak for max 20 seconds)
Gear Ratio: 1:2.35
Sprocket: 14-tooth
Waterpoof Rating: IP66
Thermic Probe: KTY82/122 included
Working Temperature: 70-120 degrees Celsius (150C peak)
Hall Sensor: Single hall set with waterproof connector
Cooling: Air
Max Efficiency: <93%
Battery Line: 150a peak (recommended)
Gear reduction: Yes
Chassis & Components
Frame: Steel
Swingarm: Aluminum
Triple clamp: Forged Steel
Handlebar: Aluminum, 31" wide, 22mm diameter, crossbar (not pictured)
Suspension, Front: Inverted 48mm fork, 170mm travel (shorter than pictured)
Suspension, Rear: Single shock, adjustable for rebound & preload, 57.5mm travel
Brakes: True hydraulic disc brakes, master cylinders w/fluid sites, braided brake lines, high-temp rotors
Front brake: Two-piston caliper, 220mm, 4mm wide disc
Rear brake: Single-piston caliper, 190mm, 4mm wide disc
Maximum rider weight: 210 lbs
Chain: #428H
Durable plastics with Bomb Moto graphics
Controller mount (w/metal cover if not using mount). Controller mount designed for Far Driver. Note Far Driver may change mount position and heat sink size which may require some manual adjustment.
Battery level indicator in cockpit
Dimensions
Weight (with/without battery): ~150/120 lbs
Dimensions: 1,750 x 770 x 1,080mm
Wheelbase: 1,190mm
Seat Height: 810mm
Ground Clearance: 335mm
Sprockets: 14/48 (1:3.43)
PHOTO GALLERY
