Maximum Rigidity at Minimum Weight
Attention to details, high quality materials and precise welding techniques make Qulbix frames very light and rigid. With 6,7 kg (76 model (2017)) and 10,2 kg (140 model) both frames are of the lightest performance e-bike frames on the market. Monocoque thin shell frame offers maximum internal battery compartment at minimum outside dimensions.
Price to Weight Ratio
Qulbix frames offer best VFM - value for money. Steel and aluminium combo make them performance fit and cost available.
Qulbix frame models and their components are compatible with most standard hub motors and bike components on the market.
Are you one of those rides who ride hard? Even crash sometimes? No worries – the Qulbix frame can take it. It may suffer some dents and scratches on the surface, but that won't stop you riding. You can't say the same for »plastic cover« tubular frame designs or carbon fiber frames.
Handling & Geometry
A great bike is much more than just two wheels with a frame in between. Geometry matters! Our frames are carefully designed in such a way to insure that the bike will steer and handle with ease and precision. BB height is perfect for rugged terrain, so you don't need to worry that you'll bottom out on a rocky trail. Our bolt-on rear shock bracket with three holes allows lots of combinations for fine tuning the rear end suspension. We understand not all rides are the same. It doesn't matter if you're very tall or kind'a small - you'll be able to set up your bike to fit you perfectly.
Super-strong Swing Arm
The Qulbix swing arm can take the torque from the high performance motors with ease. For extreme torque set-ups dropout reinforcement brackets are available as add-ons.
Need to tweak, add or modify something? An additional hole for the cable or to mount a new kind of controller? Not an issue, drilling a small hole in your Qulbix frame will not compromise it's integrity. You can't say the same for carbon fiber frames.
Qulbix frames are fully enclosed and thus IP54 waterproof. All cable inlets are sealed with silicon rubber grommets, well protected from water when riding on wet terrain. So no worries if you splash over some puddles, your electronics will stay dry. You can't say the same for »plastic cover« tubular frame designs.
Battery protection (against mechanical damage)
The strong monocoque frame will protect the battery in case you crash. You can't say the same for »plastic cover« tubular frame designs or carbon fibre frames.
Battery Fire Hazard
In case you decide to use cheaper LiPo hobby battery packs and you are concerned for the safety of your property, Qulbix's fully enclosed steel and aluminium frame will contain or limit the potential battery fire outburst better than any other frame design. Other frame types - epoxy resin (carbon fiber) and plastics will even intensify the fire. But be advised: Qulbix does not take any responsibility for the fire damage! We STRONGLY suggest you use safer cell types and always handle all kinds of batteries carefully, safely and in accordance with instructions!
Efficient Controller Cooling
Controller mounting position on Qulbix frames is ideal for optimum air flow which will keep your controller nice and cool even when it's working hard. Controller shield provides protection against mechanical damage such as terrain debris.
A Do-It-Yourself electric bicycle frame kit, now lighter and more nimble than ever. Ready for "classic" bicycle seat installation. It is intended for those who want to take full advantage of optimal seat height for best pedalling performance. The kit is compatible with standard high performance bicycle components.
Qulbix frame kits are designed for performance off-road/road riding. To find compatible bike components see Related Products tab.
Please read important legal notice (see page footer).
|Key Features:||LIGHT, SLIM DESIGN, MODULAR, STRONG & RELIABLE. OPTIMAL FOR PEDALLING.|
|Bottom bracket height:||350mm|
|Bottom bracket:||83 mm, BSA thread (BB is not included in the kit).|
|Charger socket:||Integrated Neutrik NL2 charger socket with rubber cap.|
|Controller Shield Type:||Not included. Adaptto shield available separately.|
|Dérailleur:||M10x1 threaded hole for standard dérailleur installation.|
|Head tube angle:||64⁰|
|Head tube inside diameter:||44mm|
|Head tube length:||150mm|
|Key lock:||Frame integrated key-lock for controller on/off.|
|Material:||Super strong CrMo steel and High tensile Aluminium.|
|Maximum tire width (26'' wheel):||90mm|
|Minimum bicycle seat height:||840mm|
|Rear Brake:||Suitable for 200/203 mm rotor and standard brake calipers (rear brake adapter is included in the kit.)|
|Rear shock bushing length:||40mm|
|Rear Shock Dimensions:||240x76mm|
|Rear wheel travel:||230mm|
|Seat post diameter/seat tube inner diameter:||30,9mm|
|Seat tube outside diameter:||35mm|
|Seat Type:||Bicycle (only subframe included).|
|Stand over height:||780mm|