Compatible with both hub (e.g., QS 205 50H V3 and QS 273) and mid-drive motors (e.g., Bafang BBSHD 1000W, BBS02B 750W, BBS01B 500W – 250W), with only the swing arm differing.
Hub or Mid-drive motor
Up to 2kWh battery volume
76 mm wide frame
Bicycle or Moto
Made in Slovenia
Robust design with rubber-sealed cable ports
However, a battery swap can still be done in 5-10 minutes—simply unscrew ten M5 bolts on the right side, remove the plate, and replace the battery.
Key features:
An XT60 charge plug is used, consisting of male and female connectors. Solder the male XT60 connector to the charger and the female connector to the battery pack’s BMS. The female XT60 plug, equipped with a rubber seal cap, is securely bolted to the top of the frame.
New decals are available in a variety of color options. For a fresh, clean look, choose a white-based frame, or go for a black color scheme if you prefer a darker aesthetic.
What’s new:
The frame is designed for fork models with an angular key-lock, securing the handlebar when parked to help prevent theft. A welded ring on the lower part of the frame allows the key-lock’s pin to interlock securely. It supports FastAce and DNM forks with lock installation capability, with FastAce fork and lock available in the Qulbix shop.
The redesigned moto seat is now more level, with reduced forward pitch and higher-density foam for improved durability and support. The firmer foam enhances longevity and is better for riding and pedalling. The seating surface measures 350 mm in length and 165 mm in width (75 mm at its narrowest point), offering solid support while ensuring sufficient leg clearance.
Compatible with both hub (e.g., QS 205 50H V3 and QS 273) and mid-drive motors (e.g., Bafang BBSHD 1000W, BBS02B 750W, BBS01B 500W – 250W), with only the swing arm differing.
The frame features a standard 100mm Bottom Bracket (BB) with BSA threads (83mm also available), opening up three distinct configurations:
Standard Single Chainwheel: A clean and simple setup. Compatible with standard cranksets using up to a 46T chainwheel—ideal for everyday commuting and trail riding.
High-Speed Overdrive System: For riders who want to pedal at higher speeds without "ghost-pedaling." Our dual-stage overdrive system acts like a massive 75T chainwheel, allowing you to maintain pedaling resistance even at high electric speeds.
Full Modular Compatibility: You can install the specialized Qulbix Crank System or any third-party 100mm BSA-threaded option.
Off-Road Footpegs: Not a fan of pedaling? The Q76 is fully compatible with bolt-on footpegs, allowing you to transform your build into a pure electric crosser for aggressive off-road handling.
The unique shell frame design does more than support the structure—it also serves as a watertight battery compartment. This dual-purpose feature eliminates the need for an additional battery housing, reducing both weight and part count. Rear shock bracket has also the following adjustment options:
Compatible with both hub (e.g., QS 205 50H V3 and QS 273) and mid-drive motors (e.g., Bafang BBSHD 1000W, BBS02B 750W, BBS01B 500W – 250W), with only the swing arm differing.
The controller is mounted high in the front of the frame, a position chosen for optimal airflow and protection from debris. The external setup not only improves cooling but also allows for quick swaps and compatibility with a range of controller types.
The frame features a standardised mounting position designed to accommodate a controller bracket. Each controller type has its own bracket, ensuring a sleek appearance and a secure connection to the frame.
For maximum performance we recommend Fardriver controlers.
All parts come fully prepared and finished.
High-grade stainless steel nuts, bolts, and specialized fasteners.
Step-by-step assembly instructions.
Cable inlet rubber seals will keep the interior of your frame dry.
We clean and re-tap every thread after the powder coating process.
A rugged shield against corrosion, UV exposure, and the elements.
| Color | Black, White, Custom |
| Head tube angle | 64⁰ |
| Head tube inside diameter | 44 mm |
| Head tube length | 130 mm |
| Head tube bearing | Semi integrated / 1 1/8" / Ø 44 |
| Bottom bracket height | 340mm |
| Bottom bracket width | 100mm (83mm optional) |
| Bottom bracket thread | BSA (BC 1.37) - Shimano SAINT SM HOLLOWTECH BSA |
| Compatible pedalling systems | 46T single or overdrive 75T (120 mm or 170 mm cranks) |
| Frame material | Super strong construction steel and high tensile strength aluminium. |
| Frame weight | 4,2 kg |
| Swing arm weight | 2,1 kg |
| Bicycle seat weight | 390 g |
| Moto seat subframe weight | 550 g |
| Moto seat weight (foam part) | 550 g |
| Maximum load | 120 kg (rider+equipment) |
| Wheel base | 1275 mm |
| Width (between the side plates) | 76 mm |
| Frame side opening dimensions | 173 mm x 377 mm |
| Swing arm dropout | 155 mm (custom dimensions available) |
| Compatible rear hub (motor) | QS205, QS273, Mxus, Crystalyte etc. / or bicycle hub |
| Moto seat height | 850 mm |
| Minimum bicycle seat height | 880 mm |
| Charger socket | XT60 |
| Key lock | Frame integrated key-lock for controller on/off. |
| Rear shock dimensions | 240 x 76 mm |
| Bushing length | 1 x 40 mm, 1 x 24 mm |
| Rear wheel travel | 220 ali 240 mm (adjustable) |
The Q76 is a universal platform designed for versatility. It is ideally suited for high-torque hub motors (with a 150-155mm dropout) or popular mid-drive systems like the Bafang BBSHD (1000W). If you are using a mid-drive, ensure you select the 100mm BSA threaded Bottom Bracket option.
The "nested" battery compartment is designed to be space-efficient and secure. Depending on your cell choice (18650 or 21700) and layout, you can fit up to 2kWh of energy volume. This provides ample range for both high-speed commuting and off-road trail riding.
No specialized industrial tools are required. Because we pre-press the bearings and clean the threads at the factory, you can assemble the Q76 with a standard set of high-quality hex keys (Allen keys) and basic wrenches.
Yes! The Q76 is designed to grow with your needs. You can start with a standard bicycle seat for a "stealthy" look and later upgrade to our Moto seat for better long-distance comfort and a rugged off-road feel.
Absolutely. While the Q76 is lighter and narrower (76mm) than our larger models, it is built with the same Cr-Mo steel DNA and European engineering. It is designed to handle forest trails, mud, and rugged terrain, especially when paired with 19" MX tires.
While no open-air vehicle is 100% waterproof, the Q76 is weather-ready. We include custom rubber seals for all five cable inlet holes, protecting your internal electronics from heavy rain, mud, and water spray during washing.
Mid-Drive: Bafang BBSHD (1000W) with 100mm Bottom Bracket.
Hub Motor: High-torque motors with 150mm or 155mm dropout width (QS205, Mxus, Crystalyte)
Pedal drivetrain: Qulbix single 46T chainwheel Crankset or Qulbix 75T Overdrive Crankset (to prevent ghost-pedaling at high speeds).
Front Fork: Double-crown or high-end single-crown forks with 180mm - 200mm travel. (Standard 1-1/8" or tapered steerers compatible with proper headsets).
Rear Shock: 240mm length (eye-to-eye). If you plan to use a shorter/longer shock the seat height will be lower/higher. For the best performance-to-price ratio, we recommend coil-over shocks for that true e-moto feel.
The "Street/Trail" Setup: 26" Bicycle rims with high-volume 2.5" tires.
The "Moto" Setup: 19" MX rims. These provide a lower center of gravity and much higher puncture resistance for off-road riding.
Hydraulic Disc Brakes: Minimum 203mm rotors. Given the speed potential of the Q76, 4-piston hydraulic brakes are highly recommended.
Controller: Fardriver ND72450, Sabvoton 72150 or similar sized controllers (fits comfortably in the internal mounting area).
Cells: Optimized for high-discharge 18650 or 21700 cells.