BU01
2 yearsComplete bike5 yearsFrame
Limited warranty · Terms applyMeet BU01
Built around a classic step-over frame, the G-SPEED BU01 combines everyday versatility with the strong, natural support of the Bafang GT800 mid-drive system. Its 720 Wh removable battery, 29-inch wheels and comfort-focused components make it well suited to commuting, longer urban rides and everyday transport. A MIK rear rack adds practical carrying capacity, while up to 150 Nm of torque delivers confident support when the route becomes longer or more demanding. BU01 is the traditional-frame choice within the BU Series for riders who value a balanced, capable and familiar riding position.
Morning Commute
Make the journey to work part of your day. Set your riding position and plan your route into the city.
Weekend Greenway
Take the quieter route at the weekend. Follow a greenway and make time for a stop along the way.
Everyday Errands
A trip to the shops or a stop in town. Check your load and setup before setting off.
G-SPEED BU01
Specifications
The components and equipment for BU01.
General Info
- Bike dimensions
- 76.0X26.4X43.3 Inches (193X67X110 CM)
- Net weight
- 69 lbs
- Rider height
- Small: 5'3"–5'7"
Medium: 5'7"–5'11"
Large: 5'11"–6'7" - Maximum rider weight
- 275 lbs
- Maximum rear rack load
- 60 lbs
- Bike class
- Class 2 (Convertible to Class 3)
- Water resistance
- IPX6
- Range
- Up To 60 Miles
- Bike safety certification
- UL 2849
- Battery safety certification
- UL2271
- Ideal use
- Urban, Comfort, Hybrid, Touring
- Pedal assist
- 5 Levels
Frameset
- Frame
- 6061 Aluminum, Putty finish
- Fork
- 100MM Travel, Coil Spring, Mechanical Lockout, 15X110 Boost Thru-Axle, Tapered Steerer Tube
- Rear spacing
- 148mm
- Fork spacing
- 110mm
- Frame style
- Step-Over
Wheelset
- Front wheel
- 29" Double Wall Aluminum, 36H, 13G Spoke, 15MM Thru-Axle, Schrader Valve
- Rear wheel
- 29" Double Wall Aluminum, 36H, 13G Spoke, 12MM Thru-Axle, Schrader Valve
- Tires
- CST 29*2.25"
E-Bike System
- Motor
- Bafang GT800, Mid-drive Motor, 150Nm, 750W
- Motor torque
- 150Nm
- Motor power
- Rated 750W
- Display
- BAFANG C400 TFT, Integrated In Bicycle Stem
- Battery
- BAFANG Removable Lithium-Ion 48V 15 Ah, 720 Wh, LG 21700M50LT cells
- Battery weight
- 8.8 lbs
- Throttle
- Included
- Charger
- BAFANG 54.6V 3A charger
- Charging time (0–100%)
- 6 Hours
- Lights
- Head Light: LED, 60LUX
Rear Light: LED, Integrated In Mudguard - Smart features
- Blue Tooth Connection, "G-Speed Bike" App
Brakes
- Front brake
- 2-piston Hydraulic disc brake
- Rear brake
- 2-piston Hydraulic disc brake
- Front brake rotor
- 180mm 6 bolt
- Rear brake rotor
- 180mm 6 bolt
Drivetrain
- Rear derailleur
- SHIMANO Cues, 9-Speed, RD-U3020
- Chainring
- BAFANG 38T
- Crankset
- BAFANG 170MM
- Pedals
- 9/16 Sealed Bearing Axle, Alloy Platform
- Shifter
- SHIMANO Cues, 9-Speed, SL-U4000-9R
- Chain
- KMC XGLidE 9-11 speed, 122L
- Cassette
- SHIMANO Cues, 9-Speed, CS-LG300-9 11-36T
Cockpit
- Saddle
- G-SPEED Vacuum Saddle
- Seatpost
- Suspension Post, 31.6MM, 40MM Travel, 350MM Length
- Seatpost clamp
- Integrated Hidden Clamp
- Stem
- 105MM Length, 31.8MM Clamp, Adjustable 90° - 150°
- Handlebar
- 31.8MM Bar Bore, 700MM Width, 38MM Rise, Backsweep 25°
- Headset
- ICR Ready
- Grips
- Rubber, 130mm, End closed, Single Lock Ring, Black
Included Accessories
- Rear rack
- MIK Patented System
- Mudguard
- Aluminum
- Chainguard
- ABS
- Kickstand
- Side Mounted
- Reflectors
- Included
- User manual
- Included
- Tools
- Hex Keys: M3, M4, M5, M6 – 1 Pcs Each
Open-end Wrench (8-10mm): 1 Pcs
Open-end Wrench (13-15mm): 1 Pcs
Open-end Wrench (14-17mm): 1 Pcs
Dual-head Screwdriver (Phillips / Flathead): 1 Pcs
Find your fit
Enter your height to see the recommended BU01 frame size.
Recommended size
Contact us for sizing advice
S · 420 mm160–170 cm
M · 460 mm170–180 cm
L · 510 mm180–200 cm
Geometry & Fit
Measurements are in millimeters unless noted.
S · 420 mm160–170 cm
M · 460 mm170–180 cm
L · 510 mm180–200 cm
| Measurement | S / 420 | M / 460 | L / 510 |
|---|---|---|---|
| Seat tube (A) | 420 | 460 | 510 |
| Effective top tube (B) | 587 | 590 | 600 |
| BB drop (C) | 75 | 75 | 75 |
| Head tube (D) | 135 | 135 | 135 |
| Head angle (E) | 68.5° | 68.5° | 68.5° |
| Seat tube angle (F) | 73.5° | 73.5° | 73° |
| Chainstay (G) | 497 | 497 | 497 |
| Front center (H) | 689 | 692 | 684 |
| Wheelbase (I) | 1176 | 1179 | 1171 |
| Reach (J) | 393 | 395 | 398 |
| Saddle height (K) | 545–725 | 585–765 | 635–815 |
| Fork length (L) | 512 | 512 | 512 |
| Fork offset (M) | 48 | 48 | 48 |
| Trail (N) | 122 | 122 | 122 |
| Stack (O) | 654 | 654 | 659 |
| Standover height | 845 | 845 | 845 |
| Wheel size | 29 in | 29 in | 29 in |
Questions about your bike
What is the BU01 designed for?
BU01 is a step-over city and comfort e-bike for everyday commuting, urban riding and practical daily transport. Its BAFANG mid-drive system, 720 Wh removable battery and MIK rear rack combine everyday usability with strong riding support.
What motor does the BU01 use?
BU01 uses the Bafang GT800 mid-drive motor with up to 150 Nm of torque. Motor power is 750 W for your selected Ship-to country.
What battery does the BU01 use?
BU01 uses a removable 48 V, 15 Ah, 720 Wh BAFANG battery with LG 21700 cells. The supplied 54.6 V / 3 A charger requires approximately six hours for a full charge under normal conditions.
How do I choose the right frame size?
Use the Size & Fit tool on this page. BU01 is available in S / 420 mm, M / 460 mm and L / 510 mm. The recommended size is calculated from the rider-height ranges for the selected country.
Find your fitDoes the BU01 have a throttle?
The bike shown for your selected Ship-to country includes a throttle. The correct configuration is displayed automatically according to your selected country.
What is the maximum payload?
BU01 supports a maximum payload of 150 kg, excluding the weight of the bicycle itself. Always distribute loads correctly and follow the permitted load limits of individual components such as the rear rack.
What can the G-SPEED Bike App do?
BU01 supports Bluetooth connectivity with the G-SPEED Bike App. Current connectivity is Bluetooth-based; functions requiring cellular, GPS or remote cloud connectivity are not implied.
What warranty does the BU01 include?
BU01 includes a 2-year limited complete-bike warranty and a 5-year limited frame warranty. Warranty terms, exclusions and registration requirements apply, and local statutory consumer rights remain unaffected.
Which safety standard applies?
The BU01 shown lists UL 2849 in its product specifications. Contact our team for information about local requirements.
Have another question about BU01? Ask our team.
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