The K9 4+ Upgraded Electric Cargo Bike For Dogs
Give your dog the adventure of a lifetime! The Bunch Bike K9 is a fully electric cargo trike. Three wheels and electric assist make it so easy to ride. Your pups cruise in front - so you can see each other and enjoy the breeze together.
Take your best friend for a joyride - give your older dogs back their wings - and turn everyday trips and errands into amazing memories.
The 4+ is our first fully UL certified model, meeting both UL 2271 and UL 2849 safety standards and upgraded with all-new premium features.
We ship our bikes fully assembled, straight to your door, with your accessories preinstalled. We charge a flat rate shipping fee of $199 in the US, $499 in Canada. Bikes ordered today without FastTrack will ship in November. Our queue is now FULL and FastTrack options are currently on hold until our next restock!
What's Included
Your K9 4 comes with a swing-open front door for easy access, as well as one lockable storage bench. The bench can be used for human seating, or removed entirely to maximize floor space.
You'll also receive the TechnoFlex floor mat, movable anchor bolt, and double-clip leash, so your K9 passengers stay safe and secure.
You can add more leashes, a cushy dog bed or sun shade too!
All K9 bikes also ship with two seatbelts for humans - just in case.
Click to learn more about our layout options!
Our Guarantee
Full warranty. Your bike is guaranteed to work perfectly for you. If you run into problems or defects during the one-year warranty period, we will cover both parts and service to get your bike running smoothly. Extended warranty is also available. (Read more)
Easy returns. All new U.S. Bunch Bikes come with a 14-day trial period, beginning the day after you receive your bike. We want you to be able to try out your bike life - risk free! If the bike doesn't work for you, let us know within 14 days. We'll arrange return shipping and refund 100% of what you paid. (Read more)
Exceptional service. That's forever - not just for one year. We're here to make your bike life fun, smooth and stress free! Please check out our reviews for feedback from our customers about the Bunch Bike experience.
Technical Specifications
Safety Certification: The Bunch Bike 4+ is fully UL certified to both UL 2271 and UL 2849.
Range Per Charge: 20-30 miles depending on load and terrain
Maximum Speed: 20mph
NEW Battery: UL Certified 48v 12.8Ah Li-ion - 614 Wh, LG Cells
Battery Charger: UL Certified 48v 2A Smart Charger with LED indicator
NEW Brake System: Tektro Auriga E-Twin+ E545 / E540 Hydraulic Disc Brakes with Ratcheting Parking Brake, 180mm / 2.3mm Rotors & Supersized Resevoir
Cargo Box: Marine-grade varnished plywood with lockable storage benches
Chain: KMC 27
NEW Crankset: 38T, 170mm DAPU crankset with Torque Sensor
Derailleur: 7-Speed Shimano Tourney
NEW Display: Integrated LCD display + controls with added USB charging port
Fenders: Full coverage black steel for front and rear
NEW Firmware: Bunch Bike v4 with all-new Flexible Assist Levels + PowerBoost variable throttle
Freewheel: Shimano 7-Speed
Frame: Steel - Black CNC painted, ED rust-proof internal coating
Grips: Comfort EVA foam grips
Handlebars: Alloy, Height adjustable by 8.5"
NEW Lights: Front - Spanninga Axendo 60 Lux; Rear - Spanninga Lineo - integrated in battery case
Motor: UL Certified 500W brushless, DAPU M155 Geared Hub Motor, 45 Nm of torque
Pedals: Wellgo K79 with reflectors
Rims: Samson, double wall, alloy, (36H front | 36H rear)
Saddle: Bunch comfort saddle - black
Seat Belts: Four 3-point seat belts included
Seatpost: Promax, 28.6mm x 350mm
Seatpost Clamp: Promax 319Q, quick release
NEW Shifter: Shimano Altus SL-M315 7-speed
Spokes: 12-gauge stainless steel
Steering Damper: Single gas-spring damper
NEW Torque Sensor: UL Certified Bottom Bracket Torque Sensor with sensitive, variable response
NEW Rear Rack: Included, 55-pound load limit, integrated battery rack. Lower profile accommodates wider range of rider heights
Tires: CST C-1635, Front - 20" x 2.15" | Rear - 24" x 2.00"
Throttle: Wuxing 108XL side-pull thumb throttle
Measurements & Weights
Recommended Rider Height:
5'2" - 6'6" - On standard equipment
4'11" - 5'1" - Let us know so we can customize the seat
Seat Height: 29.5" - 39.5" (measured from bottom of pedal stroke)
Handlebar Height: 43" - 49"
Total Length: 83"
Width at Widest Point: 33.25"
Handlebar Width: 24"
Usable Length of Rear Rack: 14"
Rear Rack Capacity: 55 lbs.
Total Loading Capacity of Bike: 350 lbs.
Max Loading Capacity of Cargo Area: 220 lbs.
Bike Weight: 168 lbs.
Seatpost Diameter: 28.6 mm
Cargo Box Internal Width: 23"
Wood Thickness: 0.5"
Cargo Box Internal Length: 35.75"
Cargo Box Height: 18.5" at the front to 22" near the handlebars
Height of Benches from Floor: 9.25"
Depth of Benches: 9"
Height from Ground to Floor of Box: 15"
Width of Door: 18.25"
Distance between Front Wheels: 29" (center to center)
Distance from Rear Wheel to Front Wheels: 73" (back edge of rear wheel to front edge of front wheels)
Colors & Custom Design
Sedona and Honey are high-gloss lacquer finishes that highlight the natural woodgrain.
Cool Black and Sleek White are premium paint finishes that create a uniform semi-gloss appearance without visible woodgrain.
Custom Design: Create a showstopping custom look and highlight your brand, your organization, or your family's unique style. Learn more about pricing and options here. We also offer a range of artist collaborations.
Press & Video Reviews
Why Bunch?
Learn what makes our bikes unique
Trike Stability
Three wheels make the bike easy to start, stop, and handle, even for beginners.
Dogs In Front
So your pal feels (and smells) the breeze and you can enjoy the ride together.
Powerful Electric Assist
With 500w of power, your bike will soar - even uphill, even fully loaded!
Our Community
We're proud to take exceptional care of our Bunch families. We're here to make your bike life easy, accessible, and fun!
Safety First
We use quality components and build and test each bike in our warehouse in Texas. That's how we ensure safety for our families - and yours.
Try Our Bikes
Meet a Bunch Squad member in your community to test ride a Bunch Bike in person
Find A Test RideEverything you'll need to get rolling