Go Back   EcoModder Forum > EcoModding > Motorcycles / Scooters
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-25-2014, 08:07 PM   #1 (permalink)
Techomage
 
Join Date: Feb 2013
Location: Brisbane
Posts: 8
Thanks: 3
Thanked 1 Time in 1 Post
motorcycle conversion. What size motor?

I'm building an electric motorcycle from an old Honda 250cc, and I have the choice of a 5kW or a 10kW motor at $700 ish and $1050 ish $AUD respectivly. Just wondering if the 10kW is total overkill.

I don't want a feeble bike that will struggle up every hill, but I dont need a raging death machine either ...

Interested in opinions.

Andrew.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-25-2014, 08:58 PM   #2 (permalink)
Master EcoModder
 
Join Date: Jul 2011
Location: WI
Posts: 471
Thanks: 152
Thanked 77 Times in 55 Posts
Quote:
Originally Posted by anderwgray View Post
I'm building an electric motorcycle from an old Honda 250cc, and I have the choice of a 5kW or a 10kW motor at $700 ish and $1050 ish $AUD respectivly. Just wondering if the 10kW is total overkill.

I don't want a feeble bike that will struggle up every hill, but I dont need a raging death machine either ...

Interested in opinions.

Andrew.
Given a choice between the two, I'd take the latter...
  Reply With Quote
The Following User Says Thank You to jkv357 For This Useful Post:
anderwgray (02-26-2014)
Old 02-25-2014, 11:46 PM   #3 (permalink)
Master EcoModder
 
P-hack's Avatar
 
Join Date: Oct 2012
Location: USA
Posts: 1,408

awesomer - '04 Toyota prius
Thanks: 102
Thanked 249 Times in 201 Posts
you might need to narrow it down a little more, 10kw is in no danger of being a raging death machine FWIW That kw takes a single speed 332lb (plus rider) brammo through the 1/4 mile in 20 seconds with a top speed of 65mph-ish
  Reply With Quote
The Following User Says Thank You to P-hack For This Useful Post:
anderwgray (02-26-2014)
Old 02-26-2014, 02:58 AM   #4 (permalink)
Techomage
 
Join Date: Feb 2013
Location: Brisbane
Posts: 8
Thanks: 3
Thanked 1 Time in 1 Post
Thanks

Quote:
Originally Posted by P-hack View Post
you might need to narrow it down a little more, 10kw is in no danger of being a raging death machine FWIW That kw takes a single speed 332lb (plus rider) brammo through the 1/4 mile in 20 seconds with a top speed of 65mph-ish
Thanks, That's pretty much what I needed to know I guess.
The 10kW is 17Kg, the 5kW is 11Kg, so the weight isnt significant (compared to the batteries + bike). For the extra few hundred $$ it seems like it will be worth it.

Both motors come with water cooling options, which since the bike has already has a radiator, seems like the thing to do.

Last edited by anderwgray; 02-26-2014 at 03:02 AM.. Reason: additonal thoughts ...
  Reply With Quote
Old 02-26-2014, 07:38 PM   #5 (permalink)
EcoModding Lurker
 
American Viking's Avatar
 
Join Date: Jan 2014
Location: NJ, for a little bit longer..
Posts: 81

Dad's Jetta - '05 Volkswagen Jetta 2.5l package one
90 day: 23.23 mpg (US)

Black Cherry - '01 Honda VFR800fi
Last 3: 39.39 mpg (US)
Thanks: 0
Thanked 13 Times in 10 Posts
Go with the 10KW motor.
Your not going to have a transmission so the more powerful motor will be needed to have descent performance.
__________________
JohnS

Black Cherry (no epa ratings)


Dad's Taxi


The Lead Sled (EV conversion coming soon)
  Reply With Quote
Old 02-26-2014, 10:04 PM   #6 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,595

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,534
Thanked 3,377 Times in 2,126 Posts
Quote:
Originally Posted by American Viking View Post
Your not going to have a transmission so the more powerful motor will be needed to have descent performance.
Oh, just about anything will perform going downhill.
__________________


  Reply With Quote
Old 02-27-2014, 12:07 AM   #7 (permalink)
Techomage
 
Join Date: Feb 2013
Location: Brisbane
Posts: 8
Thanks: 3
Thanked 1 Time in 1 Post
*smirks*
  Reply With Quote
Old 03-13-2014, 02:27 PM   #8 (permalink)
EcoModding Lurker
 
American Viking's Avatar
 
Join Date: Jan 2014
Location: NJ, for a little bit longer..
Posts: 81

Dad's Jetta - '05 Volkswagen Jetta 2.5l package one
90 day: 23.23 mpg (US)

Black Cherry - '01 Honda VFR800fi
Last 3: 39.39 mpg (US)
Thanks: 0
Thanked 13 Times in 10 Posts
Quote:
Originally Posted by Frank Lee View Post
Oh, just about anything will perform going downhill.
I'm in NJ, what is this downhill that you speak of?
I thought politics were banned here??
__________________
JohnS

Black Cherry (no epa ratings)


Dad's Taxi


The Lead Sled (EV conversion coming soon)
  Reply With Quote
Old 03-13-2014, 02:31 PM   #9 (permalink)
Master EcoModder
 
P-hack's Avatar
 
Join Date: Oct 2012
Location: USA
Posts: 1,408

awesomer - '04 Toyota prius
Thanks: 102
Thanked 249 Times in 201 Posts
Quote:
Originally Posted by American Viking View Post
I thought politics were banned here??
Maybe, if you were looking for dissent performance
  Reply With Quote
Old 03-13-2014, 02:40 PM   #10 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,595

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,534
Thanked 3,377 Times in 2,126 Posts
Quote:
Originally Posted by American Viking View Post
I'm in NJ, what is this downhill that you speak of?
I don't know- you brought it up.

__________________


  Reply With Quote
Reply  Post New Thread


Tags
motorcycle, watts

Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com