62

There are (at least) two reasons. First, most (but not all) E-bikes use a control system that multiplies the amount of force or torque that you put into the pedals or cranks. Since power is the product of pedal speed and pedal force (or torque), increasing the torque allows the rider to reduce the pedal speed -- that is, the rider's cadence. Electric motors (...


50

In general studies have indicated that trained cyclists use pedaling frequencies higher than 90 rpm whereas untrained cyclists prefer frequencies around 60 rpm. I suspect the majority of e-bikers you encounter are not "trained" cyclists. Cycling co-opts a number of pathways we use for walking so people who are untrained typically cycle like they would walk, ...


50

I would add to the already existing answers some of the thoughts that come to me as a bike user. For me using a bicycle is a mean to prevent getting out of shape. Using an electrical bike would be like going hiking with a car or elevator. This applies for a lot of my friends riding bikes. Some of my colleagues complimented me on the fact that I exercise ...


40

They don't need them but they are good to have. I have an e-bike that I use as a daily commuter. Here are my thoughts: E-bikes are heavier than regular bikes and put considerably more power out at the rear wheel (my motor has 350 watts, I add maybe 60-80 watts at most) compared to a regular bike which only has 80 watts alone. if you have an ebike with a ...


40

Even with an e-bike going to 150 miles a week is a big jump. Likely you just need to have a few rest days to allow your body to adapt and recover. 3 weeks is the range in where you start run into problem with long term recovery. I'd suggest switching down to 3 days a week until you feel completely recovered every day. Also lay off the strava, going for ...


36

Personally it's because I'm using my ebike to get to work, wearing work clothes (which restrict my pedalling) and not wanting to get too sweaty. If I were just out for a ride I'd pedal faster.


36

There are several reasons for regenerative brakes not being common on bicycles unlike in electric cars: Electric bicycles have very poor acceleration, and the rider produces about half of the acceleration with the motor producing the rest. The power is limited by the low-speed motor, not the battery. Most quality electric motors like to spin at 5000 - 20000 ...


25

Short answer: it's not worthwhile. Most bicycling energy goes toward overcoming wind resistance, especially for casual riders. That energy is lost, with no chance for regeneration. Liberty Trike claims that the most you can expect to gain from regeneration is 5-10% of energy expended. Panda eBikes claims 10%, with some math. By comparison, an electric car or ...


22

I moved house in August, and have had a 26 km commute so roughly similar. Mine's got 50 metres drop on the way to work, so mostly flat. In my experience, you're in the distance where comfort becomes more important. Anyone can smash out a short commute every day, but these longer ones cumulatively build up on you. Clothes So expect to spend money on ...


21

According to Schwalbe at https://www.schwalbe.com/gb/e-bike.html For standard pedelecs with pedal assistance up to 25 km/h no specific tyres are stipulated by the legislators. But the loads and average speeds of these bicycles are also higher than in the case of normal bicycles. We therefore recommend only certain tyres as “E-Bike Ready 25”. ...


19

Cost is the overarching reason. Not only buying (and re-buying after theft!) but also maintaining. I can happily leave a cheap bike in the rain for a year; at worst I'll buy a new chain (€10) that I can easily replace myself. I'm living now in a relatively flat city of 250K with over 50K of students: I can buy a second-(well, probably third- or fifth-)hand ...


18

Its designed to attach the prop of a model aircraft directly, i.e its designed to drive a fan that cools it. It has little (or none) weather protect, and would be destroyed on a bike in months. Another concern I would have with that motor is the shaft size- its one thing to deliver 2000W to a prop, but to connecting it to a mechanical drive train that can ...


18

For me, as an occassional ebike rider, it feels I get kind of better connection to the bike when pedaling at lower cadence, but higher force. Because the electric assist otherwise reduces the needed force, it can feel like eternal downhill and it gets harder to sense your speed. But when I switch to higher gear so that I need to push harder on the pedals ...


17

DO NOT DO THIS! You can't safely charge any battery using jumper leads from another battery. If the other battery matches the flat one, but is fully charged, the current will be so high that you will probably start a fire. You will definitely damage the flat battery, and probably both of them. Jumper leads work on cars by having enough resistance that the ...


17

I live in The Netherlands, where cycling is one of the most (if not the most) popular modes of transport, with an average of 1.3 bicycles owned per person (22.7 million bikes / 17 million citizens) [source]. So far, 1.9 million electric bikes have been sold country-wide. That roughly means 1 e-bike per 10 non-electric bikes sold, and 1 e-bike per 9 people. ...


16

The limit is set by law depending on the country. There's nothing to prevent you from going faster if you can pedal harder. The limiter just cuts off the electric assistance above 25km/h, so you'll have to rely on pedal power alone above that speed!


16

Apart from going the high-tech route of a front suspension with lock-out, you can also try to get wider tires. The slow-down of wide tires is not that big, but they naturally even out high-frequency bumps. The wider the tire, the smoother your ride gets on the rough roads. Maybe, that's all you need.


15

Actually, when you are running the motor near the top of the speed limiter, it's the happiest and most likely drawing the least current. If you had a CycleAnalyst or other amp gauge, you'd see it reduce current as it reaches the point where the controller is turning it off to reduce the speed. The motor will be cutting in and out due to the limiter, but will ...


15

In brief - "sales and marketing" Changing tubes/tyres on an ebike can be more awkward, especially on the powered wheel, plus ebikes tend to attract less "mechanical" riders than regular bikes, being a gateway ride. So an ebike tyre will be a marketing term for higher puncture resistance and lower rolling resistance, and probably in the wider sizes to cope ...


14

It could be that all they are doing is rotating the pedals - not because they have to input any force to make the bike go but because the motor will not run with receiving a continuous signal from a hall-effect switch coupled to the pedals. Thus the motor is enough to move the rider alone, but unless the rider is also rotating the pedals a cadence sensor ...


14

The expense is part of it: for the price of a cheap electric bike I can buy a much better bike without a motor. A much bigger effect is that electric bikes are still bikes, with all the exposure to the weather, perceived risk, and at least some of the effort. So tempting people out of their cars onto electric bikes is a hard sell. Tax breaks might help but ...


14

Very quick answer - the torque numbers that are quoted are maximum torque values which do not correspond to maximum power. Power = torque × rotational speed, so, at slow speeds the motor unit can provide more torque (and hence more acceleration) while staying within the power limit. A bit more: There a decent page here on the characteristics of DC motors. ...


14

It would depend on the bike itself. The electronics on a high end e-mountain bike are pretty much waterproof, and the bike itself is susceptible to the same issues as any bike from rain etc. Regardless, any bike will have its life and service intervals shorten by being left in the rain. I'd suggest a small shed to store the bike in or at least covering it ...


13

Assuming you have a good quality electric assist bike from a major manufacture. The manufacturer provided the max assist setting, so they intend for it to be used. It's a safe bet the bike is built to take the max assist torque without sustaining damage or accelerated wear. If the manufacturer believes sustained use of max assist will affect the bike, it ...


13

I don't (yet) own an E-Bike, but have spoken to my LBS a few times to find out whats happening in the market. My interest is Mountain biking more than road riding, but the observations probably apply more or less to the same extent. 1) People who are less fit / non-cyclists get into riding who otherwise would not. This does not appear to apply to you. 2) ...


12

I don’t always use full assist for the following reasons: Range and Battery life. I can almost double range by biking more. This is especially the case when I’m down to 1-bar on the battery level so I pedal on the flat portions and keep the assist for the climbs. Exercise: sometimes you wanna ride a bike, get those juices flowing Go faster: my ebike has e-...


11

Depends totally on your bike's Battery Management System and what options it offers. Generally speaking, a battery has a certain amount of stored energy, which is its capacity in watt-hours, which may be expressed in amp-hours (at a known voltage). Functionally, a battery could put out energy at half the maximum rate, for twice as long. If your bike's BMS ...


11

I have tried to regulate the rear gear mechanism by adjusting the position screws but failed to make any improvement. That's almost never the adjustment that the rear derailleur needs. Those screws are called the limit screws, and they set how far in and out the derailleur can move. All they do is stop the derailleur from moving the chain all the way off ...


11

Most rechargeable batteries have a certain voltage threshold below which they will get permanently damaged. Li-ion cells should never drop below 3.0V (slightly higher at 3.2V for LiPo). Smart batteries have integrated systems monitoring remaining voltage and will have a way to at least tell you they're getting too low. In your case, it seems the system has ...


11

Hilariously, such a product does exist. It comes from notorious crapgadget vendor Thanko. Note that it only purports to charge two AA batteries, and it's not an efficient way to do that. They make no estimate of how long it would take to fully charge those batteries. I did some playing around with this calculator. Based on some guesses and estimates, it ...


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