Bonnell 775 MX - The Fastest Electric Mountain Bike

775MX Bikes are IN STOCK and Shipping NOW!

We are now shipping the newest, updated version of the Bonnell 775 MX, which includes several major improvements for strength, reliability, and long-term performance. [See Below]

What’s New on the Updated 775 MX:

• Stronger front and rear rims designed to handle harder riding and reduce the chance of bending or cracking.

• Reinforced rear wheel assembly featuring thicker 13G spokes, improved lacing, and upgraded spoke nipples for better durability under load.

• Tannus Armour insert pre-installed in the rear tire to help prevent flats and add rim protection on harsh impacts — this level of wheel care is something you won’t find from any other manufacturer in this category.

• New chain tensioner with UDH mounting, improving alignment and overall drivetrain stability.

• Shorter 155mm crank arms for more ground clearance and fewer pedal strikes on technical terrain.

• Updated rear suspension, moving from an air shock to a coil shock for improved consistency and feel.

The Bonnell 775 MX is a new breed of lightweight electric dirt bike, designed to blur the line between a downhill mountain bike and a full-powered e-moto. Weighing in at just 75 lbs and packing serious torque, this is your off-road sidekick for everything from technical singletrack to all-day exploration. With a rugged chromoly frame, premium suspension, and 6,000W peak output, the 775 MX delivers all the agility of a mountain bike—without giving up moto-grade performance.

Whether you're pedaling on eco mode or ripping on full throttle, the 775 adapts to your terrain, your riding style, and your ambition.

Highlights

• 6,000W peak power, 280Nm torque

• Ultra-light 75 lb total weight

• 27.5" rear / 29" front DH wheels with Maxxis Assegai tires

• Custom-tuned 200mm RUX 38 fork and 170mm rear Suntour Voro Coil shock (Trunnion 205×65, 5-position low-speed compression adjustment, low-speed rebound adjustment)

• 1300Wh battery with 5A charger

• Adjustable geometry, moto-style Magura brakes, and intuitive display

Purpose-Built for Off-Road

Designed to go where eMTBs struggle and full-size dirt bikes overcommit, the 775 MX is a perfect tool for riders looking to take on steep switchbacks, fast singletrack, and tight terrain without hauling around 200+ pounds of dead weight.

In the Box

• Bonnell 775 MX (minimal assembly required)

• High-capacity swappable battery & 5A charger

• Bonnell 13-function multi-tool

• Shock pump

• Tubeless valves (2)

Additional Information

• Warranty: All Bonnell products are covered against manufacturing defects for 24 months (2 years) from the date of shipment, and this applies to the original owner only. Battery Packs: Covered for 12 months from the date of shipment, retailer purchase, or up to 500 hours of use—whichever occurs first. Coverage includes issues like a capacity drop of more than 30% from nominal. Warranty Exclusions: Damage from crashes, misuse, negligence, or improper use is not covered. Also excluded are normal wear parts (e.g., chains, belts, seats, grips, rims, lights, tires, brake levers, bearings, etc.) and any products modified or operated in a damaged condition.

• Local Assembly Option: Colorado-based customers can add a $99 assembly fee to have their bike fully built and ready to ride from our showroom.

Important Notes

• ALL BONNELL SALES ARE FINAL – NO RETURNS.
• Cancellation Fee: Due to increased credit card, PayPal, and other transaction fees, all cancellations are subject to a non-refundable 3% fee ($165).
• Shipping: Bikes are sold in the box for buyer assembly unless the local assembly option is selected.

With the 775 MX, Bonnell has created one of the lightest and most capable off-road e-motos available today. From the custom-tuned suspension to the premium components and thoughtful design touches, this bike is built for serious riders who want the best of both MTB and moto worlds—without compromise.

Technical Specifications

Motor & Battery

• Drive Unit: CYC X1 Pro

• Peak Power: 6,000W

• Torque: 280Nm

• Battery: CYC A65-series, 72V 18Ah (1,300Wh), swappable

• Charger: 5A rapid charger

• Display: CYC Intuition smart display

• Throttle: Lekkie Pacemaker full twist throttle

Frame & Suspension

• Frame: 4130 chromoly front triangle, ED coated, forged 6061 aluminum rear end

• Travel: 200mm front / 170mm rear

• Fork: Suntour RUX 38 RC+, 29", 200mm, 50mm offset

• Shock: Suntour TriAir 3CR, trunnion mount (205x65mm)

• Adjustability: Two rear shock positions (comfort/sport), adjustable chainstay length

Brakes

• Type: Magura MT5, 4-piston hydraulic

• Rotors: 220mm front / 203mm rear MDR-P floating

• Levers: 2-finger, flip-flop moto or regular configuration

Drivetrain

• Rear Cog: 24T single-speed, hardened steel

• Chain: KMC e1 EPT anti-rust

• Crank: CYC 155mm forged

• Chain Guide: Upper adjustable guide with bottom roller

Wheels & Tires

• Front Wheel: 29", 2.5" Maxxis Assegai DH casing

• Rear Wheel: 27.5", 2.5" Maxxis Assegai DH casing

• Rims: Updated Alex EMC 30, e-bike rated, 36H (13g spokes)

• Hubs: Boost spacing, custom Bonnell rear hub with sprag clutch

Cockpit & Components

• Handlebar: 780mm wide, 50mm rise

• Stem: Kalloy forged direct mount

• Seatpost: Tranz-X adjustable dropper (140–200mm travel, size dependent)

• Saddle: Bonnell short nose w/ integrated carry handle

• Grips: Lekkie single-lock soft rubber

• Pedals: Bonnell aluminum flats, sealed bearings

Weight & Capacity

• Total Weight: 75 lbs (34kg)

• Weight Limit: 302 lbs (137kg)

• Range: 12–37 miles (20–60 km), terrain and mode dependent