Electric Motorcycles Are More Than Just A Different Fuel

JAN 23 2018 BY RIDEAPART.COM 12

Electric Bikes: More Than Just a Different Type of ‘Fuel’

You’ve got a bike, maybe an entire stable, and, as an established member of the two-wheeled world, you’re fully in your comfort zone around it/them. You know your service schedules, and over the years you’ve refined the list of upgrades and modifications you like to work your way through to make your bikes, well, yours. Tail tidies. Oil changes more regularly than the handbook demands. ECU re-maps. Aftermarket spark plugs, air filters and quick-shifters. But have you ever stopped to think about how much of that is bound around the type of “fuel” your bike runs on? It might be more than you’d think.

And what’s more, for electric bike manufacturers life on the other side of the fence is likely very different from that of a conventional motorcycle manufacturer.

You’ve noticed a rattle and it’s coming from somewhere just under the tank. Not to worry, you think to yourself, next time you’ve got the tank lifted up you’ll have a little root around for it, because it’s probably that one difficult-to-reach bolt on the side of the air-box that you can never quite tighten up properly. The reason you’re confident whipping the tank up and off to have a look for it is because, with internal combustion engine bikes, the dangers when poking around under the proverbial hood fairly obvious: be wary of hot bits if the bike’s been running recently; don’t smoke in the vicinity (or play with fireworks); and so on.

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With an electric bike, many of those familiar precautions become irrelevant, or change in such a way as to no longer be familiar. Electric bikes don’t get hot, electricity doesn’t smell or audibly slosh around in the tank, and batteries are never really “off.” To make matters more interesting, a staggering amount of energy is stored in that “always on” battery, and it’s DC electricity – the most dangerous type to be around.  This new fangled electric bike stuff can be seriously dangerous in the wrong hands – to the point that riding around with a tank of explosive liquid between your legs seems relatively sane by comparison.

All of this has the potential to change how you and I might behave when owning an electric bike. You might begin to think twice about flipping up the tank for a quick poke around with a flashlight and a screwdriver, knowing that live electricity is lurking within. Suddenly those cold winter weekends tinkering with your bike in the shed, running through that upgrade list, might begin to look slightly different as you realise that you can’t mess nearly as much with an electric bike as a gas powered one.

Of course, I’m sure it’s still possible to perform simple modifications – such as fitting a tail tidy tidy – to an electric bike on your own without turning yourself into a potato chip, but the electric future almost certainly spells the end of doing all the servicing and maintenance yourself. Though, some will argue that it won’t change servicing, just eliminate some of the unpleasant jobs. All of the consumable parts you’d maintain on a gas-powered bike still need maintaining on an electric bike: tires, brake pads, suspension, brake fluid. transmission fluid (in some cases), suspension linkages to grease, and perhaps some chain or belt adjustment. But that’s pretty much it. No valve clearances, air filters, cam chain tensioners, pistons, and all the rest of it to worry about.

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Certainly where you take your electric bike for service or repair will change. Farewell the do-it-all garage. Electric bike manufacturers are producing wildly different bikes with bespoke parts and technology. For example, Energica’s bikes run on 300V, where as Zero’s run on 110V. Knowledge of how these bikes work doesn’t necessarily transfer between manufacturers, so dropping your electric bike off at a local garage to have some gremlins taken care of may no longer be possible. Instead it’ll likely have to go back to the dealership’s shop – to a garage with mechanics trained by a manufacturer to work safely on that manufacturer’s bikes – and that might be two states away. According to Energica’s CTO, Giampiero Testoni, standards are plucked from the electric car world and used in the electric bike world, but the live wires in Energica’s bikes might still be colored differently from, say, Zero’s.

Life for the electric bike manufacturers is completely different, too. After talking at length with Testoni at the launch of Energica’s new model, the Esse Esse 9, I came to the conclusion that when it comes down to it, electric bike manufacturers are actually somewhere between software companies and technology companies. He agreed. 70 percent of Energica’s research and development budget goes directly into software engineering. The remaining 30 percent goes into chassis development. With exception of the battery, all of the hardware and knowledge is bought in from outside companies.

“There are plenty of companies out there who can build a chassis, plenty of companies who can build an electric motor,” Testoni explained. “Why would we do that ourselves when they have already solved problems?”

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Testoni said the single biggest problem for an electric bike manufacturer is making the bike safe. That means many, many hours testing the software in the “brain” of the bike to make sure it can’t and won’t accidentally apply 100-percent throttle when you do something weird, eg, attempt to change the riding mode while holding down the starter button. We’ve all encountered software bugs on our phones and computers – often they are more amusing than annoying. But in the case of an electric vehicle, a bug could be the cause of serious injury or worse. Most electric bikes lack even a clutch lever that could be relied upon to disengage the final drive in an emergency. You’re putting your faith into things working correctly all the time.

Additionally we need to think differently about how we treat the power source. In many ways, batteries are living, breathing things that perform differently depending upon atmospheric conditions, their age, and how they’ve been used and charged. A fun twist is that each and every one of them performs slightly differently. And, for packaging reasons on a bike, they have to be made of flat cells rather than cylindrical cells. Those flat cells are made almost entirely by hand because it’s hard to automate their construction; there are hundreds of the things in every bike battery.

Meanwhile, electric bikes present challenges not present in other electric vehicles. Take a Tesla car for example: the AC system is used to keep batteries at a constant temperature, so the car performs as predictably as possible. There’s no such system available on a bike, so the software in the ECU has to constantly assess the current atmospheric conditions and work out how the battery is currently able to perform.

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It’s all too easy to spend an hour or two on an electric bike and walk away thinking the only difference is whether you plug into a wall socket afterwards or fill up with gas – I’ll admit I was guilty of this. The truth is that the changes go far, far deeper. EV manufacturers have different goals, different problems to solve, and are moreso technology companies than traditional engineering companies. I subscribe to the mantra that electric is almost undoubtedly going to become a massive part of the future, but in the process motorcycling will be turned upside down and change in many more ways than we might think. It’s both fun and interesting to think that something as seemingly simple as changing the “fuel” will cause so much change.

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12 Comments on "Electric Motorcycles Are More Than Just A Different Fuel"

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Bret
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I’m dying to replace my vintage XR250 with something electric, like the KTM Free Ride E But, the batteries just don’t have the range for long-distance trail riding. I’m hoping for longer range from electric bikes in the near future.

Barry
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Barry

Why can’t a motorcycle have a battery TMS? I see a radiator on the Energica bike. Also, why is DC any deadlier than AC? At the right voltage and amperage, they both are dangerous.

Steve
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Steve

DC is more dangerous because it contracts your muscles and there is no alternating cycles, like in AC, to release that ‘clamp’ like contraction it’s difficult if not impossible to release yourself form its grip if the power is high enough.

Jhon
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Put your hands on the 12¥ – & + post of your vehicle.. nothing happens it’s totally different than a.c.

R. Goose
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R. Goose

I suspect because DC will definitely arc! when you separate connection(s) slow or false, AC doesn’t…

Vinny
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Vinny

Barry,I have been riding a Zero SR for almost four years. I am not sure there is a need for a TMS on a motorcycle. I have never seen any discussions in the electric motorcycle forums on the topic. No question you could put a TMS on a motorcycle I just don’t think there is a need for one.

Also agree, if you get stupid around electricity you are going to get hurt regardless of the source.

Steve
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Steve

The author is wrong about this. It’s all about the fuel and how fast you can fuel it. People don’t always, and I would argue, almost never in the US, buy a bike specifically for commuting.

The range is still not good if you are going on group rides or want to go out for a 400 mile ride on the weekend. Most don’t fast charge, and waiting hours for a ‘fill up’ is not going to happen.

If you only ride 100 miles at a time or a little more, then yes, these bikes can fit the bill. If you have the deep pockets to pay for them.

I would argue the extra expense and inconvenience of EBikes right now outweighs any service or fuel savings.

wavelet
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wavelet

Actually, only two BEV models reach 100mi tank range at highway speeds — the S/SR from Zero if you buy the expensive and top-heavy Power Tank @$17K. And even then, that’s assuming level ground, no headwind, and not too cold a day.
Any motorcycle I buy has got to be able to do day rides — otherwise, what’s the point? Might as well get an electric bicycle/scooter.
I’m fine with two charging stops on a 350-400mi day ride, but not for >1.25 hours for both, and Zeros can’t do that without several $1Ks of 3d-party chargers with no standard mounting position.
It’s probably 3-4 years away from a stock electric sport-touring bike — and it won’t be cheap.

Chris Jones
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Chris Jones

I’ve been around e-motos for a few years now, and I think the main hold up to widespread adoption of road bikes is charge time and range. The two are related, but their significance differs. Range on a gas bike is usually somewhere between 200 and 400 km. At highway speeds, 200 km is a honking big battery on a bike. Still – I’m in need of a break after 200 km, so let’s pull over. I want to charge in 30 mins before setting off again – so the battery NEEDS to have DCFC capability.
A short range bike is great – light weight, fun and nimble, perfect for the commute. But you can’t use the same bike for longer strops through the hills. So making sure DCFC is viable is a pretty good start I think.

EJCT
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EJCT

The future of E-motorcycles, -scooters and bikes lies in Asia. When I visited Beijing last summer, the city was whizzing with two- or three-wheeled electric vehicles people used for commuting, business and deliveries. The Chinese E-commerce giant, JD.com, uses a large fleet of red electric tricycles for home deliveries throughout the city. I rarely saw ICE motorcycles or scooters, a welcome change from the noise and pollution. The intriguing part is that the rapid adoption occured without much of a government incentive, simply driven by low prices, cheap electricity and the convenience of almost maintenance free riding. In the US motorcycles are rarely used for commuting or business, they are lifestyle items used mainly for weekend roadtrips paired with a masculine freedom mythology that is becoming long on the tooth. US roads are simply not safe fro motorcycle commuters if you have to share the road with sleep-deprived coffee swilling SUV commuters distracted by their phones. Too bad, since motorcycle riding is fun and would save even more energy compared to electric cars.

Steven
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Steven

I’d love to replace my Sportster with a BEV Motorcycle, but there is no one to one replacement.

JeremyK
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JeremyK

Agree with others who say that we’re years away from affordable, multi-purpose, motorcycles. Packaging, weight, and cost are much harder to achieve with a motorcycle than a car but are critical in making these bikes competitive with existing gas-powered cycles. i.e You can hide a 25% weight increase in an electric car, but not an E-bike.

I’ve got three bikes. A KTM 990 Adventure, a 1st Gen Hayabusa, and an old ’71 Yamaha R5 (2-stroke). Each has traits that define the character of the bike and make them unique and fun to own/ride. E-bikes have a long way to go before they can match the multi-sport nature of the KTM or the high speed touring capabilities of the Hayabusa.

I expect to, one-day, add an electric bike to my “fleet” but knowing that it will likely be relegated to commuting and local joy-rides means the price has to be quite low.