1 - Wheelbase: 1290 cm
2 - Handlebar grip height: 115 cm (fork angle: 64°)
3 - Bottom bracket height: 340 mm
4 - Seat height: 90 cm
5 - Max. load capacity: moderate riding: 120kg; for hard off-road riding: 100kg
6 - Average rider: 1.8 m
1 - Wheelbase: 1290 cm
2 - Handlebar grip height: 115 cm (fork angle: 64°)
3 - Bottom bracket height: 340 mm
4 - Seat height: 90 cm
5 - Max. load capacity: moderate riding: 120kg; for hard off-road riding: 100kg
6 - Average rider: 1.8 m
The range of the e-bike always depends on consumption of power, which is determined by various factors, as the over-all weight of the bike, rider and equipment; riding surface and tyres, type of terrain, riding style etc.
Typical energy consumption:
The Q140MD e-bike is a complex machine with lots of set-up options. It gives riders the freedom to choose the perfect combo. But what if you're not sure what you need? No worries! Read the article below and if you're still not sure, contact us for individual advice.
We offer two battery sizes:
Battery pack | 72 V 20 Ah | 72 V 30 Ah |
Battery capacity | 1440 Wh | 2160 Wh |
The size of the battery pack will affect you bike's: max. (peak) power, max. speed, range, max. torque, charging time, etc.
We, at Qulbix, assemble all battery packs in-house. Why?
Because that's the best way to control the quality. We only use high quality Li-Ion cells from renowned manufacturers. Cells are mounted in an ABS holder to allow the hot air to escape between the gaps and through the vents, out of the battery. This prevents the heat build-up inside the battery pack and increases the safety and lifespan of the cells. The individual cells are connected with the spot-welded nickel strips. The cross-sections of the nickel strips between the series are large, which ensures minimum resistance for higher current flow. High current BMS unit is placed outside the battery pack to minimize the heating of the cells and to allow for an easier servicing.
This is a personal preference.
It all depends on where and how you will do your riding. If your background is a push bike, then pedals might be a better option for you, and if you're used to a MX bike, foot pegs might be better. But the beauty of the Q140MD is that foot pegs and pedals can be switched at any time. Think you might need pedals for your forest exploration rides and pegs for your MX training? Sure, take both set-up and swap them as you go.
There's a few questions that come to mind, when thinking of pedals on a performance e-bike:
Can I move the bike only with pushing on pedals if I run out of the battery?
Can I increase the range of the ride if I pedal?
The answer to both is yes.
But because the gear ratio of the pedal overdrive system is very »long«, the pedalling of a 50+ kg bike can prove very difficult. Nonetheless, on the straight or slight downhill terrain moving the bike only with pedals is possible. Pedalling it uphill without the motor's power is not very probable. There is also a special technique called »active regeneration« which works like this: when you are going downhill push on the pedals and use the regen brake (moderate it) to increase the regenerative charging. Check on the display how much current are you »pumping« back into the battery. For greater effect stand-up during the pedalling. You will be surprised how much you will increase the range by using this technique!
The foot pegs are classic foldable steel MX pegs.
Again, it's up to you. But in our experience, most clients that have tried both, prefer the moto seat.
Why?
Because it's just so much more comfortable and it works not only with pegs, but also with pedals. Q140MD's cranks are modified (shorter) than on standard bicycles which allows for effective pedalling even if you do sit lower on a moto seat (compared to a classic bicycle seat).
Here's an explanation taken from downhill riding: if you want to pedal a DH (downhill) bike when the seat is low, your knees will be bent so much, you'll be almost hitting you chest. It's a very unnatural position and you'll get tired very fast. To avoid that, the seat on a DH bike is set very high and the cranks are typically 170mm long. With the Core's where the moto seat is lower, we created specialised, shorter cranks (120mm) that solve the same problem. Custom cranks give you a better control during cornering, jumps etc. You might still argue that 170mm cranks will give you more leverage and that that's an optimal length for effective pedalling ... yes, you are right, but you do not need optimal pedalling with 10+ kW bike, do you? It is much more important to have a better control of all that power and weight, during the ride.
PAS or Pedal Assist System consists of the pedal cadence sensor and e-brake cut-off switches. The whole system gives you a control over the motor acceleration only through the pedals. The faster you spin the pedals the faster you will go. It is that easy. No need to twist the throttle.
Using the twist throttle is still the best way to fine-control the bike, but the pedalling gives it the special "I am a superhuman" feel. The PAS system can also be easily disconnected when you do not need it or you do not want it to interfere with the twist throttle.
Qulbix bikes standardly come only with the twist throttle control, but if you choose to add the PAS option, your bike will have three throttle set-ups:
(1) Classic moto style twist grip throttle - use only the twist grip to regulate throttle.
(2) Twist grip throttle AND pedal assist - use the pedals or the twist grip to regulate throttle. Using the twist grip will override the pedal assist throttle. This double throttle option is best for off-road trips, where you wish to have a workout, but also want to have maximum control over throttle in case the terrain gets too rough for pedals.
(3) Pedal assist - use only pedals to control throttle.
Throttle set-ups can be easily be regulated on your bike's display. You can also set up an end speed lock, at 25km/h.
The bike's stopping power relies on the front brake, rear brake and also on the regen brake, which is an effective secondary rear brake, as when engaged it will cause the motor to gradually slow down the rear wheel. The regenerative braking is very practical to use (as it is variable, smooth) and very useful for two reasons: it will save the brake pads and at the same time increase the range of your bike. This is especially useful on long downhill rides.
We also offer the double-disc front brake upgrade - quite a unique feature - for more advance riders.
The gear ratio between the motor and rear wheel determines what the maximum rear wheel torque and speed will be.
The standard chain wheel ratio on the Q140MD Core is 22T/34T for optimum torque/speed (70-75 km/h) ratio. If you prefer a high speed option (80 km/h) you can choose an additional chain wheel size for the rear, the 30T to change to a 22T/30T combo.
The Q140MD Core is the only performance electric bike on the market that is truly modular in design. It has two seat types (classic bicycle or moto seat), two footing types (pedals or foot pegs) and three throttle set-ups you can choose from to transform your bike according to your riding needs.
Ride it like a/an: |
OFF-ROAD EXPLORER |
OFF-ROAD PEDELEC1 |
MOTOCROSS E-BIKE |
LIGHT ELECTRIC ENDURO |
---|---|---|---|---|
Throttle control |
By pedals and twist grip 2 |
By pedals (active PAS 1) only |
By twist grip only |
By twist grip only |
Footing type |
Pedals |
Pedals |
Foot pegs |
Pedals |
Seat style |
Classic bicycle seat |
Classic bicycle seat |
Moto style seat |
Moto style seat |
Speed |
Full |
Can be restricted to street- legal 25 km/h |
Full |
Full |
BEST FOR |
Off-road trips, exploring nature |
Commuting, getting a classic bicycle work-out off-road |
Training of MX tracks |
Challenging off-road terrain, such as steep hills and on narrow forest paths |
1 Pushing the pedals will activate the pedal assist sensor (torque/cadence); twisting the grip throttle will over-ride pedal assist and activate twist grip throttle. Using classic disc brakes or regenerative brake will cut off both types of throttle. For current PAS options available, contact the Qulbix team. 2 The bike can be started by pedals or twist grip throttle. Using twist grip throttle will over-ride and shut down pedal assist. Using classic disc brakes or regenerative brake will shut down pedal assist for safety reasons. |
One bike. In 4 different ways.
The Core has three throttle set-ups:
Throttle set-ups can be easily be regulated on your bike's display. You can also set up an end speed lock, at 25km/h.
Electric bikes have started off with the hub-drive designs (where the motor is positioned in the rear wheel) as the motor was meant to only assist the rider's pedalling. This concept still works well, for classic road pedelecs, with weak and light motors of 250 - 500W of power assistance. Performance off-road e-bikes, however, are another matter. Having a heavier, powerful motor placed in the rear wheel presents a serious disadvantage and drastically downgrades its over-all riding performance.
In practice it means that the hub-drive bike's rear wheel does not follow the trail's surface, but bunces off on holes and bumps, due to its heavy weight's rebound. It is like comparing a hardtail bicycle (a bicycle without the rear suspension) to a downhill bike with a great rear suspension.
Mid-drive e-bikes on the other hand, have a much more balanced weight distribution and so minimal unsprung mass. This results in a much better riding stability and manoeuvrability. There is also much less stress on the rear wheel, which means less rim damage and tyre punctures.
Mid-drive bike's advantages:
The beauty of your e-bike is that is modular in nature. All you need to do is to buy the Moto Seat and Subframe Set (that you'll find in Qulbix shop), remove your bicycle seat and subframe, and replace it with the new seat. You can replace the moto seat with the bicycle one again anytime later on.
In reality the Core is something in between a bicycle and a motorcycle, that's why we use the phrase "bike". Depending on how you set it up, that's the way it will behave. That's the beauty of it.
For example:
The beauty of your Q140R is that is modular in nature. All you need to do is to buy the Foot Pegs Set and the Moto Seat and Subframe Set (that you'll find in the PRODUCTS tab) and you'll be able to transform your e-bicycle to e-motocross bike.
Most people praise the variability of the regen. Only advanced controllers allow this feature, more basic ones have none or just on/off. It does take some practice, but once you get used to it, it's quite easy to operate both - thumb on the regen and index finger on rear brake. Most of the time you do not need the hydraulic rear brake - just front and regen.
Variable regen brake is a real advantage, since you can moderate the braking force - and you gain back the energy, extend the range and save brake pads. To switch it to the hydraulic brake lever would be possible, but it could be only on/off and would loose the functionality. We can not moderate the regen braking force with such a short stroke of the brake lever. The regen has also integrated ABS functionality, and if pressed hard it is on the traction limit and when the bike enters the corner you can make a smooth slide.
Sure. Most parts of your e-bike are available individually, including decals. Go ahead and browse in our SHOP, or send us an email.