Old 26th April 2019, 06:20 PM #1
the dessert fox's Avatar
the dessert fox the dessert fox is offline
mehhh
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Motorbike: RSV4, Duc 916
the dessert fox the dessert fox is offline
mehhh

the dessert fox's Avatar
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Rides: RSV4, Duc 916
Electric Bike Build

Anyone here dunnit? What I have in mind is a sports 600 kind of build that I could shnake silently round Mondello on.
the dessert fox is offline   ReplyReply
Old 27th April 2019, 11:24 PM #2
DavyH DavyH is offline
Veteran Racer
 
Join Date: Dec 2014
Posts: 2,808
Motorbike: Rrn,Sp1,Bros 663,Fe650
Modifications: A few bits and pieces!
DavyH DavyH is offline
Veteran Racer

 
Join Date: Dec 2014
Posts: 2,808
Rides: Rrn,Sp1,Bros 663,Fe650
Mods: A few bits and pieces!
Re: Electric Bike Build

Hasn’t sparked any interest then
DavyH is offline   ReplyReply
Old 28th April 2019, 09:24 AM #3
the dessert fox's Avatar
the dessert fox the dessert fox is offline
mehhh
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Motorbike: RSV4, Duc 916
the dessert fox the dessert fox is offline
mehhh

the dessert fox's Avatar
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Rides: RSV4, Duc 916
Re: Electric Bike Build

Quote:
Originally Posted by DavyH View Post
Hasn’t sparked any interest then
Flat, I think is the word for the response.
the dessert fox is offline   ReplyReply
Old 28th April 2019, 10:02 AM #4
me2 me2 is online now
MotoGP Star
 
Join Date: Jul 2017
Location: Blanch
Posts: 788
Motorbike: dublin bus
Modifications: standard adult fare
me2 me2 is online now
MotoGP Star

 
Join Date: Jul 2017
Location: Blanch
Posts: 788
Rides: dublin bus
Mods: standard adult fare
Quote:
Originally Posted by the dessert fox View Post
Flat, I think is the word for the response.
Yup, failed to generate any EMF whatsoever.
me2 is online now   ReplyReply
Old 28th April 2019, 10:09 AM #5
the dessert fox's Avatar
the dessert fox the dessert fox is offline
mehhh
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Motorbike: RSV4, Duc 916
the dessert fox the dessert fox is offline
mehhh

the dessert fox's Avatar
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Rides: RSV4, Duc 916
Re: Electric Bike Build

Current interest is zero
the dessert fox is offline   ReplyReply
Old 28th April 2019, 10:19 AM #6
HIGHSIDER's Avatar
HIGHSIDER HIGHSIDER is offline
Supporter
 
Join Date: Mar 2008
Location: Craggy Island
Posts: 8,530
Motorbike: Tae fathers??????
Modifications: Go on,go on,go on,GO ON!!
HIGHSIDER HIGHSIDER is offline
Supporter

HIGHSIDER's Avatar
 
Join Date: Mar 2008
Location: Craggy Island
Posts: 8,530
Rides: Tae fathers??????
Mods: Go on,go on,go on,GO ON!!
Re: Electric Bike Build

Quote:
Originally Posted by the dessert fox View Post
Anyone here dunnit?
Negative......
HIGHSIDER is offline   ReplyReply
Old 28th April 2019, 10:47 AM #7
the dessert fox's Avatar
the dessert fox the dessert fox is offline
mehhh
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Motorbike: RSV4, Duc 916
the dessert fox the dessert fox is offline
mehhh

the dessert fox's Avatar
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Rides: RSV4, Duc 916
Re: Electric Bike Build

There appears to be resistance
the dessert fox is offline   ReplyReply
Old 28th April 2019, 12:19 PM #8
Gixxer's Avatar
Gixxer Gixxer is offline
Resident gynaecologist
 
Join Date: Nov 2009
Posts: 13,542
Motorbike: NSU Quickly
Modifications: Lobotomy
Gixxer Gixxer is offline
Resident gynaecologist

Gixxer's Avatar
 
Join Date: Nov 2009
Posts: 13,542
Rides: NSU Quickly
Mods: Lobotomy
Re: Electric Bike Build

I'm 99% certain someone here was building one or did build one, but I'm fucked if I can remember who.
Gixxer is offline   ReplyReply
Old 28th April 2019, 03:46 PM #9
the dessert fox's Avatar
the dessert fox the dessert fox is offline
mehhh
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Motorbike: RSV4, Duc 916
the dessert fox the dessert fox is offline
mehhh

the dessert fox's Avatar
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Rides: RSV4, Duc 916
Re: Electric Bike Build

Reckon a 2004-2005 R1 rolling chassis is what I might need.
the dessert fox is offline   ReplyReply
Old 29th April 2019, 01:26 AM #10
Sleazy Rider's Avatar
Sleazy Rider Sleazy Rider is offline
Supporter
 
Join Date: Dec 2015
Location: Dublin
Posts: 887
Motorbike: Bimota YB9 SRI
Modifications: Wear and Tear!
Sleazy Rider Sleazy Rider is offline
Supporter

Sleazy Rider's Avatar
 
Join Date: Dec 2015
Location: Dublin
Posts: 887
Rides: Bimota YB9 SRI
Mods: Wear and Tear!
Re: Electric Bike Build

Assault and battery is illegal you know?
Sleazy Rider is offline   ReplyReply
Old 29th April 2019, 01:43 AM #11
efanton efanton is offline
WSB Contender
 
Join Date: Jan 2016
Location: North Cork
Posts: 702
Motorbike: Suzuki GSX 600F
efanton efanton is offline
WSB Contender

 
Join Date: Jan 2016
Location: North Cork
Posts: 702
Rides: Suzuki GSX 600F
Re: Electric Bike Build

cant see it being a practical proposition.

The frame on most IC bikes will be very heavy, and for any electric vehicle you want to keep things as light as possible. You dont want to waste a good proportion of your available power wasted moving unnecessary weight.

I could see a electric build being a brilliant idea and project if someone was prepared to build their own frame, but I would imagine that would be way beyond the capabilities of most people unless they were experienced welders and experienced custom fabricators.

Would it wok with a standard frame, probably it would, but I would imagine your range would be very limited
efanton is offline   ReplyReply
Old 29th April 2019, 02:07 AM #12
Gixxer's Avatar
Gixxer Gixxer is offline
Resident gynaecologist
 
Join Date: Nov 2009
Posts: 13,542
Motorbike: NSU Quickly
Modifications: Lobotomy
Gixxer Gixxer is offline
Resident gynaecologist

Gixxer's Avatar
 
Join Date: Nov 2009
Posts: 13,542
Rides: NSU Quickly
Mods: Lobotomy
Re: Electric Bike Build

Quote:
Originally Posted by efanton View Post
cant see it being a practical proposition.

The frame on most IC bikes will be very heavy, and for any electric vehicle you want to keep things as light as possible. You dont want to waste a good proportion of your available power wasted moving unnecessary weight.

I could see a electric build being a brilliant idea and project if someone was prepared to build their own frame, but I would imagine that would be way beyond the capabilities of most people unless they were experienced welders and experienced custom fabricators.

Would it wok with a standard frame, probably it would, but I would imagine your range would be very limited
Modern frames weigh next to nothing. You'd be hard pressed to make anything lighter.
Gixxer is offline   ReplyReply
Old 29th April 2019, 07:53 AM #13
ENGLISH's Avatar
ENGLISH ENGLISH is offline
MotoGP Star
 
Join Date: Mar 2008
Location: Kill. Co.Kildare
Posts: 815
Motorbike: Constantly changing
Modifications: Always standard
ENGLISH ENGLISH is offline
MotoGP Star

ENGLISH's Avatar
 
Join Date: Mar 2008
Location: Kill. Co.Kildare
Posts: 815
Rides: Constantly changing
Mods: Always standard
Re: Electric Bike Build

Watt?
ENGLISH is offline   ReplyReply
Old 29th April 2019, 10:22 AM #14
the dessert fox's Avatar
the dessert fox the dessert fox is offline
mehhh
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Motorbike: RSV4, Duc 916
the dessert fox the dessert fox is offline
mehhh

the dessert fox's Avatar
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Rides: RSV4, Duc 916
Re: Electric Bike Build

The question seems to resolve down to whether to go the whole hog and use a proper ecu canbus type bespoke control set-up with all the possibilities that offers , or go for the twist and go off the shelf solution. An Arduino suggests itself as a simple way of doing it.
the dessert fox is offline   ReplyReply
Old 29th April 2019, 03:18 PM #15
kwackquack kwackquack is offline
Supporter
 
Join Date: Jan 2012
Posts: 3,820
Motorbike: zx6r
Modifications: fines
kwackquack kwackquack is offline
Supporter

 
Join Date: Jan 2012
Posts: 3,820
Rides: zx6r
Mods: fines
Re: Electric Bike Build

Spoonman from here was working on a homemade electric bike a couple of years back, built on a cbr600 chassis as far as I remember
kwackquack is offline   ReplyReply
Old 29th April 2019, 05:15 PM #16
efanton efanton is offline
WSB Contender
 
Join Date: Jan 2016
Location: North Cork
Posts: 702
Motorbike: Suzuki GSX 600F
efanton efanton is offline
WSB Contender

 
Join Date: Jan 2016
Location: North Cork
Posts: 702
Rides: Suzuki GSX 600F
Re: Electric Bike Build

Quote:
Originally Posted by Gixxer View Post
Modern frames weigh next to nothing. You'd be hard pressed to make anything lighter.
I assumed e wasnt going to tear apart a a perfectly good new bike to do this.
Then again he might be a Delboy devotee
efanton is offline   ReplyReply
Old 29th April 2019, 06:28 PM #17
the dessert fox's Avatar
the dessert fox the dessert fox is offline
mehhh
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Motorbike: RSV4, Duc 916
the dessert fox the dessert fox is offline
mehhh

the dessert fox's Avatar
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Rides: RSV4, Duc 916
Re: Electric Bike Build

Any sports bike frame from the 90's on will be light enough to do the job.
Need one where the engine isn't structural, that's my concern re actual suitability
the dessert fox is offline   ReplyReply
Old 30th April 2019, 11:57 AM #18
Shocks88 Shocks88 is offline
Supporter
 
Join Date: May 2015
Posts: 62
Motorbike: Fireblade
Shocks88 Shocks88 is offline
Supporter

 
Join Date: May 2015
Posts: 62
Rides: Fireblade
Re: Electric Bike Build

Quote:
Originally Posted by the dessert fox View Post
The question seems to resolve down to whether to go the whole hog and use a proper ecu canbus type bespoke control set-up with all the possibilities that offers , or go for the twist and go off the shelf solution. An Arduino suggests itself as a simple way of doing it.
Would you even need an Arduino?
Looking at https://www.4qd.co.uk`they have throttles and motor controllers.
I presume you thinking lithium batteries?
Pick a motor and your good to go?
Shocks88 is offline   ReplyReply
Old 30th April 2019, 02:07 PM #19
Duke RR Duke RR is offline
Looking for an M1200 \MM/
 
Join Date: Dec 2006
Location: Find me in exmoor
Posts: 18,172
Motorbike: few red italian/jap heaps
My Motorcycle Pics
Duke RR Duke RR is offline
Looking for an M1200 \MM/

 
Join Date: Dec 2006
Location: Find me in exmoor
Posts: 18,172
Rides: few red italian/jap heaps
My Motorcycle Pics
Re: Electric Bike Build

is there nobody taking charge of this thread.....
Duke RR is offline   ReplyReply
Old 30th April 2019, 02:59 PM #20
Gixxer's Avatar
Gixxer Gixxer is offline
Resident gynaecologist
 
Join Date: Nov 2009
Posts: 13,542
Motorbike: NSU Quickly
Modifications: Lobotomy
Gixxer Gixxer is offline
Resident gynaecologist

Gixxer's Avatar
 
Join Date: Nov 2009
Posts: 13,542
Rides: NSU Quickly
Mods: Lobotomy
Re: Electric Bike Build

Quote:
Originally Posted by Shocks88 View Post
Would you even need an Arduino?
Looking at https://www.4qd.co.uk`they have throttles and motor controllers.
I presume you thinking lithium batteries?
Pick a motor and your good to go?
I reckon you'd need something more substantial than the controllers they sell. They're more like electric bicycle sizes.
Gixxer is offline   ReplyReply
Old 30th April 2019, 06:39 PM #21
the dessert fox's Avatar
the dessert fox the dessert fox is offline
mehhh
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Motorbike: RSV4, Duc 916
the dessert fox the dessert fox is offline
mehhh

the dessert fox's Avatar
 
Join Date: Mar 2016
Location: Galway
Posts: 495
Rides: RSV4, Duc 916
Re: Electric Bike Build

Ok we'll park this thread until I've scratched me head a bit more. Motor and chassis TBD
the dessert fox is offline   ReplyReply
Old 12th August 2019, 12:59 PM #22
Spoonman's Avatar
Spoonman Spoonman is offline
Break it. Fix it. Repeat.
 
Join Date: May 2005
Location: Westmeath
Posts: 3,833
Motorbike: '87 NC24; '98 TL1000S
Modifications: TLS: M4 system, PCII, K&N, GI-pro ATRE, c/f hugger
Spoonman Spoonman is offline
Break it. Fix it. Repeat.

Spoonman's Avatar
 
Join Date: May 2005
Location: Westmeath
Posts: 3,833
Rides: '87 NC24; '98 TL1000S
Mods: TLS: M4 system, PCII, K&N, GI-pro ATRE, c/f hugger
Re: Electric Bike Build

Quote:
Originally Posted by kwackquack View Post
Spoonman from here was working on a homemade electric bike a couple of years back, built on a cbr600 chassis as far as I remember
Only just after seeing this thread - yup, still have it in the corner.
Didn't build it from scratch, bought it cheap and unfinished and got it running - that must be nearing 7 years or so ago now...

Have plans for a far more comprehensive build in the future but with the house build and the kids that could be a long way off.

Market has come a long way and you can pack a tremendous amount into a small chassis now, but it *costs*!

Performance is a balance of costs as always, but they're wicked fun in any format.

If you're at anything I'd be happy to help out.
Spoonman is offline   ReplyReply
Old 12th August 2019, 11:58 PM #23
vifferman's Avatar
vifferman vifferman is offline
MotoGP Legend
 
Join Date: Mar 2011
Location: Clare/Limerick
Posts: 1,559
Motorbike: VFR 750, Moto Guzzi V50
vifferman vifferman is offline
MotoGP Legend

vifferman's Avatar
 
Join Date: Mar 2011
Location: Clare/Limerick
Posts: 1,559
Rides: VFR 750, Moto Guzzi V50
Re: Electric Bike Build

I fitted a crank conversion kit on the push bike. Works great, but a 36volt 15Ah battery cost 400 Euro.
You'd definitely need a lot more power than that to shift a proper bike. Voltage would have to be higher to get the required power at lower current. It would only be possible if you could salvage a motor and controller from something for small money, but I can't think of anything that would have a suitable motor to do the job.
vifferman is offline   ReplyReply
Old 13th August 2019, 12:48 AM #24
Gixxer's Avatar
Gixxer Gixxer is offline
Resident gynaecologist
 
Join Date: Nov 2009
Posts: 13,542
Motorbike: NSU Quickly
Modifications: Lobotomy
Gixxer Gixxer is offline
Resident gynaecologist

Gixxer's Avatar
 
Join Date: Nov 2009
Posts: 13,542
Rides: NSU Quickly
Mods: Lobotomy
Re: Electric Bike Build

Quote:
Originally Posted by vifferman View Post
I fitted a crank conversion kit on the push bike. Works great, but a 36volt 15Ah battery cost 400 Euro.
You'd definitely need a lot more power than that to shift a proper bike. Voltage would have to be higher to get the required power at lower current. It would only be possible if you could salvage a motor and controller from something for small money, but I can't think of anything that would have a suitable motor to do the job.
You're looking at about €3k+ for the motor and controller.
Gixxer is offline   ReplyReply
Old 13th August 2019, 02:09 AM #25
me2 me2 is online now
MotoGP Star
 
Join Date: Jul 2017
Location: Blanch
Posts: 788
Motorbike: dublin bus
Modifications: standard adult fare
me2 me2 is online now
MotoGP Star

 
Join Date: Jul 2017
Location: Blanch
Posts: 788
Rides: dublin bus
Mods: standard adult fare
Quote:
Originally Posted by Gixxer View Post
You're looking at about €3k+ for the motor and controller.
f-that, ya could pick up a nice reliable ic hack for that price. yeah, I'm staid.
me2 is online now   ReplyReply
Old 13th August 2019, 04:42 PM #26
vifferman's Avatar
vifferman vifferman is offline
MotoGP Legend
 
Join Date: Mar 2011
Location: Clare/Limerick
Posts: 1,559
Motorbike: VFR 750, Moto Guzzi V50
vifferman vifferman is offline
MotoGP Legend

vifferman's Avatar
 
Join Date: Mar 2011
Location: Clare/Limerick
Posts: 1,559
Rides: VFR 750, Moto Guzzi V50
Re: Electric Bike Build

Quote:
Originally Posted by Gixxer View Post
You're looking at about €3k+ for the motor and controller.
I know that for a new one. But I wonder is there some industrial motor that would do the job if you could get a salvage one somewhere?
Would have to be DC, what voltage?
vifferman is offline   ReplyReply
Old 13th August 2019, 06:00 PM #27
the landshark's Avatar
the landshark the landshark is offline
Quantum Mechanic
 
Join Date: Dec 2007
Location: Mallow
Posts: 5,966
Motorbike: TLR,Z900,CB200,CD200,Pan
Modifications: They sometimes work
the landshark the landshark is offline
Quantum Mechanic

the landshark's Avatar
 
Join Date: Dec 2007
Location: Mallow
Posts: 5,966
Rides: TLR,Z900,CB200,CD200,Pan
Mods: They sometimes work
Re: Electric Bike Build

A forklift motor would have to be up for consideration.
Most are either 48v or 72v DC. Plenty of shove in them.
You should be able to repurpose the controllers too.
the landshark is offline   ReplyReply
Old 13th August 2019, 07:58 PM #28
Gixxer's Avatar
Gixxer Gixxer is offline
Resident gynaecologist
 
Join Date: Nov 2009
Posts: 13,542
Motorbike: NSU Quickly
Modifications: Lobotomy
Gixxer Gixxer is offline
Resident gynaecologist

Gixxer's Avatar
 
Join Date: Nov 2009
Posts: 13,542
Rides: NSU Quickly
Mods: Lobotomy
Re: Electric Bike Build

If I had the sheckels, I'd be MacGyvering one of these into something.

https://www.evwest.com/catalog/produ...m6pn3c0f03oqa2

210HP and 280 lb/ft of torque.
Gixxer is offline   ReplyReply
Old 13th August 2019, 10:05 PM #29
vifferman's Avatar
vifferman vifferman is offline
MotoGP Legend
 
Join Date: Mar 2011
Location: Clare/Limerick
Posts: 1,559
Motorbike: VFR 750, Moto Guzzi V50
vifferman vifferman is offline
MotoGP Legend

vifferman's Avatar
 
Join Date: Mar 2011
Location: Clare/Limerick
Posts: 1,559
Rides: VFR 750, Moto Guzzi V50
Re: Electric Bike Build

Quote:
Originally Posted by the landshark View Post
A forklift motor would have to be up for consideration.
Most are either 48v or 72v DC. Plenty of shove in them.
You should be able to repurpose the controllers too.
I've done repairs on a few, but they're built for low rpm, high torque, so no good. You'd need something with higher RPM.
vifferman is offline   ReplyReply
Old 14th August 2019, 10:27 AM #30
Spoonman's Avatar
Spoonman Spoonman is offline
Break it. Fix it. Repeat.
 
Join Date: May 2005
Location: Westmeath
Posts: 3,833
Motorbike: '87 NC24; '98 TL1000S
Modifications: TLS: M4 system, PCII, K&N, GI-pro ATRE, c/f hugger
Spoonman Spoonman is offline
Break it. Fix it. Repeat.

Spoonman's Avatar
 
Join Date: May 2005
Location: Westmeath
Posts: 3,833
Rides: '87 NC24; '98 TL1000S
Mods: TLS: M4 system, PCII, K&N, GI-pro ATRE, c/f hugger
Re: Electric Bike Build

Forktruck motors are what's in the yoke I have. They're effective but bulky. DC controllers are cheaper than AC or brushless controllers as well, and as long as you set your timing correctly, arc wear on the brushes is minimal. Forktruck motors are setup to be bidirectional so can do with a good deal of advancement. Given that advancement you can up the RPM considerably - main restriction then is the voltage limits on the coils.

EV-west use HPEVS's 'AC' series machines. There's and AC-15 and an AC-21 that I've looked at in the past. Tons of grunt and enough RPM to do the job. Not much smaller than a forktruck motor though and they use a Curtiss controller which is super high quality stuff, but expensive.

If I were building tomorrow I'd be going for a Curtiss or Sevcon controlled Liquid cooled PMAC machine running at about 96-130 volt. Rev ceiling would be aroundabout 7500rpm so gearing options are pretty good. I reckon such a rig could run about 8-10km/kwhr. Battery pack then most likely in 21700 or 18650's, tab welded, an Orion or eLithion BMS, and most likely a meanwell charger. The cyclindrical cell pack would likely require some thermal management so need to reserve space for coolant lines etc.. but that can combine with the motor setup if done right.

You'd need a big chassis to fit it all in if you wanted any meaningful range - I'd be looking towards a Blackbird, Busa or FJ/FJR platform.

All told you'd have no change from ~€12-15k plus your time so it's not an undertaking to be taken lightly if you intend to do it right.
Spoonman is offline   ReplyReply
Reply

  Return to Main Topic Biker.ie Forums > General > The Workshop

Tags
bike, build, electric

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Buying 1st bike or upgrading to new machine? hooligan666 First time bikers 233 12th March 2019 09:38 PM
Unbelievable Modern Bike Reviews?? GoTilUBlow General Bike Chat 43 3rd June 2018 01:28 PM
**Read this before posting** - Guidelines for Buying and Selling section Admin Buying and Selling 10 20th August 2013 08:18 PM
Never Trust *any* Seller! Spoonman General Bike Chat 45 6th September 2006 12:58 AM
Buying A Bike In England JohnnyW General Bike Chat 11 27th July 2006 10:32 AM


All times are GMT +1. The time now is 02:54 AM.

 

Irish Biker's Forum

If this is your first visit, be sure to check out the FAQ by clicking the link above. To start viewing messages, select the forum that you want to visit from the selection above. .