R1200RS + R1250RS Forum
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Mon May 14, 2018 4:18 pm
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I have been riding electric motorcycles for the past 9 years. I have owned five of them: A 2009 Electric Motorsport GPR-S (caught fire after 300 miles while charging), a 2010 Electric Motorsport GPR-S (batteries died after 1300 miles), a 2012 Zero S (just recalled due to a potential fire hazard while charging), a 2014 Zero 14.2 kWh "S" (still running great although the battery capacity has dropped a bit) and I currently own a 2018 Zero 16.6 kWh (nominal) "S". I also own a 2002 Yamaha FZ1, a 2005 Triumph Bonneville T-100, a 2009 BMW F650GS, a 2011 Royal Enfield 500cc Bullet and a 2016 BMW R1200RS to ride when electricity won't carry me as far as I want to go. |
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It looks like BMW's electric scooter is selling reasonably well, according to this article: https://www.electrive.com/2018/07/26/bmw...ion-production/
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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Here is a long review of the Italian 2018 Energica Eva Esse Esse 9 electric motorcycle. Pretty positive, but the bike does seem to have some issues that could be improved, such as weight, price and of course, range: http://www.motorcycle.com/manufacturer/e...e-9-review.html
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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It has taken a while, however Vespa is finally putting their Electtrica scooter into production. But knowing Vespa and looking at the Electtrica's bling, I bet it is going to have a "premium" price and likely not a lot of performance or range. However it will really look nice with a hot Italian girl sitting on the seat.
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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If you have the money, this is the electric motorcycle for you.
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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Zitat von Richard230 im Beitrag #5 About as fugly as it is expensive. I’ve got kitchen appliances that wear the stainless steel look much better. 2017 R1200RS Lupin Blue/Grey Metallic |
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Here is a piece of electric motorcycle news for you. Another case of H-D buying into a motorcycle company and then apparently bailing out. But this time it seems to have happened very quickly. Kind of makes you wonder who is making the business decisions at H-D.
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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Now the electric Vespa Elettrica is apparently going to be marketed in the U.S. But I am not sure if a 2 kW motor is going to cut it here though, especially at Vespa's typically premium prices. https://www.revzilla.com/common-tread/ve...states-for-2019
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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And now we have speculation regarding a Ducati electric motorcycle. But I am not holding my breath until this happens, in spite of what the article tries to promote. Just check out the included video. You can start watching at minute 6. ::) https://www.autoblog.com/2017/10/23/duca...-vw-volkswagen/
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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Here is the latest electric motorcycle concept. A V-twin bobber. https://electricmotorcycles.news/newsfla...lectric-bobber/
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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Why chain drive instead of direct drive? Unsprung weight issues?
I would like to apologize to anyone I have NOT offended. Please be patient. I will get to you shortly.
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Zitat von Aussie Import im Beitrag #11 I think it has to do with the torque, maximum speed and the top speed of the motorcycle. This requires designing the final drive ratio to meet the manufacturer's requirements. My Zero has something like a 25 tooth cog wheel on the motor counter-shaft sprocket and a 128 (from memory) rear wheel sprocket. Chain drive is used when the manufacturer doesn't want to pay for the design and manufacture of a belt drive system. Chains are a lot cheaper than a belt and the final drive ratio can be easily adjusted with off-the-shelf sprockets. But they are heavier than a belt and make a lot of noise on a silent electric motorcycle. It occurred to me that I may have misunderstood your question. If you are asking about the lack of a transmission, I think that all current production electric motorcycles directly power the rear wheel from the electric motor without the use of a transmission. The defunct Brammo Empulse used to have a normal motorcycle clutch and 6-speed transmission between its motor and the rear wheel, but it really was more of a gimmick and most people kept the bike in a single gear under most riding conditions. All the transmission did was to add complexity and servicing problems, without really adding anything but weight. Most electric motors have a wide enough power curve to directly drive the rear wheel directly from the motor output shaft to the rear wheel without the need to change ratios from a stop to their top speed. Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh |
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Yes, Richard230, my comment was directed to the second paragraph of your response. I thought the best way for an electric bike to power the wheel was to put the motor into the wheel, or at least attach it like the final drive on the RS so there would be no chain, or belt, for that matter.
I would like to apologize to anyone I have NOT offended. Please be patient. I will get to you shortly.
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Zitat von Aussie Import im Beitrag #13 Rear hub motors are popular with electric scooters, slow-speed electric motorcycles and bicycles and are typically used for urban trawling. They are used a lot in Chinese-made electric scooters (they make millions of those things there). However placing the motor integral with the rear wheel places a huge amount of unsprung weight on the wheel which the suspension can't control. This tends to make the ride bouncy and uncomfortable, and kind of dangerous at high speeds. However, it is a simpler system that costs less to build and allows more space in the chassis for additional batteries. But having a sealed direct-drive motor can really cause heat buildup in the motor case which can overheat the motor under stress. That is the main reason that direct-drive hub motors are not used in two-wheel vehicles with motors of more than around 3KW. That kind of power gives you a top speed of about 40 mph - at best. The BMW C-Evolution scooter kind of meets the issue part way. They mount the electric motor to the front of the swing arm assembly, where it has less effect on unsprung inertia and use a belt to transmit the power to the rear wheel sprocket. There appears to be little if any change in gear ration between the motor output shaft and the rear wheel sprocket. Maybe 2:1 at best. Also, I think the BMW motor may be liquid cooled to keep heat buildup under control.
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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Anyone interested in Zero electric motorcycles will find this long article regarding the history of their technical advancements (with an emphasis on their electric motors) fascinating:
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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