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| RhynoCZ |
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 RhynoCZ Super Spammer

Joined: 09 Mar 2012 Karma :     
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 Posted: 07:54 - 26 Aug 2016 Post subject: Sine Cycles, e-Chopper |
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Some say riding a chopper is about freedom, others would say it's all about the rumbling noise of a V-twin, virbration from the crankshaft and smell of a huge aircooled engine, well not anymore I guess. I present to you a electric powered chopper, no noise, no vibration, no smell, no freedom (very limited range).
Made by Swiss engineer Bruno Forcell (Sine Cycles), the frame is an old unsprung Cleveland CycleWerks frame, the air cooled battery pack and engine are from the Zero Motorcycles. The tank hides the regulators and other bits.
57 Nm of torque at the rear wheel, top speed 120 km/h, the range of 55 km. Price not specified, the one in the pictures is a prototype, but Mr. Forcell claims there are already people that would like to buy such motorcycle.
https://www.motorkari.cz/upload/images/clanky/2016-08/34845/sine_cycles_electric_chopper_1.jpg
https://www.motorkari.cz/upload/images/clanky/2016-08/34845/sine_cycles_electric_chopper_2.jpg
https://www.motorkari.cz/upload/images/clanky/2016-08/34845/sine_cycles_electric_chopper_4.jpg
https://www.motorkari.cz/upload/images/clanky/2016-08/34845/sine_cycles_electric_chopper_6.jpg
https://www.motorkari.cz/upload/images/clanky/2016-08/34845/sine_cycles_electric_chopper_11.jpg ____________________ '87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor |
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| andyscooter |
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 andyscooter World Chat Champion

Joined: 30 May 2009 Karma :  
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| UnknownStuntm... |
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 UnknownStuntm... World Chat Champion

Joined: 13 Sep 2007 Karma :   
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 08:30 - 26 Aug 2016 Post subject: |
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That actually looks all right, and it's unlikely to be significantly heavier or less usable than the original. ____________________ Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike |
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| UnknownStuntm... |
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 UnknownStuntm... World Chat Champion

Joined: 13 Sep 2007 Karma :   
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| G |
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 G The Voice of Reason
Joined: 02 Feb 2002 Karma :     
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| RhynoCZ |
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 RhynoCZ Super Spammer

Joined: 09 Mar 2012 Karma :     
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| Alpineandy |
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 Alpineandy World Chat Champion
Joined: 18 Mar 2015 Karma :   
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 Posted: 12:00 - 26 Aug 2016 Post subject: |
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They can still wear the leather tassels.
but without the engine vibs they'll have to 'insert' it another way.
 ____________________ The above comment isn't necessarily the truth and anyone that says it is, is only correct if it's the truth or they're bigger than me. |
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| Snowdonia Rider |
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 Snowdonia Rider World Chat Champion

Joined: 17 Oct 2014 Karma :   
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 Posted: 12:00 - 26 Aug 2016 Post subject: |
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No petroleum, no likey. ____________________ I want your clothes, your boots and your motorcycle.
Suzuki GP125 Suzuki GSX600F Suzuki SV650S KTM EXC250F SkyTeam Bongo 125
My YouTube channel: https://www.youtube.com/c/SnowdoniaRider |
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| kerr |
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 kerr World Chat Champion

Joined: 08 May 2011 Karma :  
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 Posted: 20:07 - 26 Aug 2016 Post subject: |
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Guy sat on it does not look happy about it  ____________________ aprilia 125 Af1 Futura >> Suzuki gsxr 600 srad >> J1 zx6r >> cbr 600rr >> Speed Triple |
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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| carpe_diem |
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 carpe_diem Trackday Trickster

Joined: 28 Jul 2016 Karma :     
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| Sable |
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 Sable World Chat Champion

Joined: 27 Jul 2012 Karma :   
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| Andy_Pagin |
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 Andy_Pagin World Chat Champion

Joined: 08 Nov 2010 Karma :    
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| G |
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 G The Voice of Reason
Joined: 02 Feb 2002 Karma :     
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| talkToTheHat |
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 talkToTheHat World Chat Champion

Joined: 21 Feb 2012 Karma :    
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| Vifferguy |
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 Vifferguy Banned

Joined: 31 Aug 2016 Karma :    
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| Teflon-Mike |
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 Teflon-Mike tl;dr

Joined: 01 Jun 2010 Karma :    
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 Posted: 13:31 - 16 Sep 2016 Post subject: |
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| UnknownStuntman wrote: | Good torque figure |
Electric motors usually quote quite stupendous torque figures, as standards measure it off the out-put shaft, where its quite frequently magnified from what the motor actually makes by compound 'planet gear' or three.
Fixed washing-machine drive to the rear wheel will magnify that by about 3x more..... BUT, compared to a something with an infernal combustion engine, and a selectable ratio gear-box?
CG125 delivers 10Nm of torque at the crank..... revs to about 10K; rear wheel at 60mph probably turns about 100rpm, so overall reduction in top-gear will be something like 100:1....
Do the maths, and 47Nm x 3:1 final drive gives, lets call it 150Nm for even numbers.... A CG, in top, will be delivering something in the order of 1000Nm... and dropping a cog or three will magnify that two of three times!
e-choppa's torque isn't so impressive when you work it out, is it?
Maybe available from zero revs; but even so, you are talking about something with barely the 'stomp' of a half decent moped..... and 55Km range!?!?!
Geez! I had a DT50 many many MANY moons ago, that had been dropped so many times by a succession of previous teen owners the tank held more filler than petrol, and unless I ran it onto reserve, I struggled to meet the '2l minimum delivery' of the petrol pumps!!! Less than half a gallon, though was still enough to get me to and from tech, for almost a week, about 80 miles!
Hmmmm... so, its slower than a beat-up old moped; it's got less range than a beat up old moped; its a damn site more expensive than a beat up old moped... and it LOOKS like something that has happened in my shed, when I have run out of old Super-Dreams to torture, and decided to see what would happen if I crossed one of the kids old push-bikes with one of the abandoned washing machines!!!!!!
The major technical break-through here is? ____________________ My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?' |
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| UnknownStuntm... |
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 UnknownStuntm... World Chat Champion

Joined: 13 Sep 2007 Karma :   
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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| Monkeywrenche... |
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 Monkeywrenche... Nearly there...
Joined: 27 Mar 2015 Karma :   
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| Vifferguy |
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 Vifferguy Banned

Joined: 31 Aug 2016 Karma :    
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| Teflon-Mike |
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 Teflon-Mike tl;dr

Joined: 01 Jun 2010 Karma :    
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| dydey90 |
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 dydey90 World Chat Champion

Joined: 01 Oct 2013 Karma :   
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 Posted: 15:35 - 16 Sep 2016 Post subject: |
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As an engineer, I really like this. It's so, so simple in everything. Look at the footpegs for example. They've just welding on a bar with a brake bolted to one side. There must be so little going on there that an apprentice could strip it back to the frame, throw all the bolts into one pot and have no trouble building it back up a week later.
Belt drive, no bodywork, no shocks. What maintenance would it need? Tyres, brake fluid and maybe check battery level depending on what type they've used.
As a buyer, however, there are a few things.
-The battery pack is ugly as sin. I don't know what it needs, but something needs doing to it to make it appear more mechanical.
-I've praised the simplicity above, but that battery pack is held on by what, four bolts? I could have that off in 30 seconds and I bet they're worth a bob or two.
-It's still a cruiser. Bring in the rake angle, maybe increase the height and make it feel more like a British classic and it'd be nicer. Although, Swiss designer, so I doubt he's even considered us as a market. ____________________ This post is probably not serious and shouldn't be taken literally.
Past: CBR125,ER6f NINJA 650, ZZR600 Current: VFR750 |
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| Monkeywrenche... |
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 Monkeywrenche... Nearly there...
Joined: 27 Mar 2015 Karma :   
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Old Thread Alert!
The last post was made 9 years, 147 days ago. Instead of replying here, would creating a new thread be more useful? |
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