E crf 250

General Discussion about large electric scooters and motorcycles and other things with no pedals.

E crf 250

Postby Farfle » Thu May 10, 2012 10:44 pm

Heya guys, I have always dreamed of building an enduro/ds style bike, something that can jump a curb, but still stick the street like glue. So, a titled 2006 crf 250 with a blown motor just came up on craigslist for 600 bucks with new plastic. I'm thinking a triple pie, or one of the pms (lol) series motors from heinzman, agni maybe? Looking for very peppy performance up to 50mph, with a top end around 60-70mph, but 80 or 90 would be acceptable too :twisted: I only need a range of around 25-30 miles, so battery space isn't an issue. Would this frame be a good candidate?
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 318A at 91v
Peak power out: 24 Hp and 151ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com
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Re: E crf 250

Postby neptronix » Thu May 10, 2012 10:54 pm

http://www.electricmotorsport.com/store/pdf-downloads/PMAC-DS.pdf

http://www.electricmotorsport.com/store/ems_ev_parts_motors_pmac-ds.php

50 rpm per volt... it is perfect - no double reduction needed.

Good value per $ versus the agni and other similar motors.
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The all-arounder: 8T MAC motor on a Trek 4500.
The girlfriend bike: 350W front MAC on a 700c Trek.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB
The Bus: ??? on a 'da bomb' cargo bike frame

Pro-tips for noobs: Avoid BMS Battery like the plague | Charge RC Lipos to 4.15v, stop discharging at 3.5-3.6v | Use torque plates/arms! | Rear mounted hubs are always best
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Re: E crf 250

Postby schabo » Fri May 11, 2012 3:54 am

nice bike for a build. i have the same :lol:
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Re: E crf 250

Postby Biff » Fri May 11, 2012 11:54 am

Zero is selling their drivetrain / batteries. 28hp in that bike would probably be good. Making a triple wide Magic pie would be pretty decent as well. http://www.zeromotorcycles.com/powertrains/ . $600 seems like really good deal for that bike.
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Re: E crf 250

Postby liveforphysics » Fri May 11, 2012 12:04 pm

schabo wrote:nice bike for a build. i have the same :lol:



Whoa! Nice build! Very clean! How often do you shift?
For ebike parts, don't be a douche, buy from http://www.ebikes.ca or http://www.MethTek.com

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Re: E crf 250

Postby schabo » Fri May 11, 2012 12:31 pm

oh, at the moment not so often, because i change the motor design after taken that pic. Now i have one Agni111RR without a gearbox :lol:
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Re: E crf 250

Postby liveforphysics » Fri May 11, 2012 12:58 pm

schabo wrote:oh, at the moment not so often, because i change the motor design after taken that pic. Now i have one Agni111RR without a gearbox :lol:



Nice! I would love to see pics! I think you may have one of the first 111R motors in a dirtbike. :-)
For ebike parts, don't be a douche, buy from http://www.ebikes.ca or http://www.MethTek.com

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Re: E crf 250

Postby schabo » Fri May 11, 2012 1:42 pm

http://www.youtube.com/watch?v=amKaF2SSHiY
i must make new pics with the Agni111R. But on the short video you can see the perfomance with the old gearbox (realy nice)
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Re: E crf 250

Postby deVries » Sat May 12, 2012 11:54 pm

Farfle wrote:Heya guys, I have always dreamed of building an enduro/ds style bike, something that can jump a curb, but still stick the street like glue. So, a titled 2006 crf 250 with a blown motor just came up on craigslist for 600 bucks with new plastic.


Hell, yes! :twisted: Fracken Jump on it! :shock:

Build thread, build thread, lots of pics/vids, weekly updates a minimum. :twisted:

Eat'n eGrins Yummy! :lol:
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Re: E crf 250

Postby Farfle » Sun May 13, 2012 1:26 pm

Talk about the one that got away... I was trying to haggle him down to 500, and then he sold it to somebody for the full 600 :( . Bah. Anywho, the search continues7
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 318A at 91v
Peak power out: 24 Hp and 151ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com
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Re: E crf 250

Postby mdd0127 » Sun May 13, 2012 3:34 pm

Good for him! He already had it priced less than the fork would cost. If you find something that's already drastically underpriced.....DON'T FREAKING HAGGLE! Makes me sick. :roll:
Turn it OFF!!!

Appocaloptimist! (thx Kiwi!)
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Re: E crf 250

Postby Stone Meadow » Sat May 19, 2012 7:26 pm

Farfle wrote:Heya guys, I have always dreamed of building an enduro/ds style bike, something that can jump a curb, but still stick the street like glue. So, a titled 2006 crf 250 with a blown motor just came up on craigslist for 600 bucks with new plastic. I'm thinking a triple pie, or one of the pms (lol) series motors from heinzman, agni maybe? Looking for very peppy performance up to 50mph, with a top end around 60-70mph, but 80 or 90 would be acceptable too :twisted: I only need a range of around 25-30 miles, so battery space isn't an issue. Would this frame be a good candidate?

This is really inspiring me, as I have a couple of late 70's monoshock YZ80 frames begging for a purpose in life higher than going on Craigslist... :mrgreen:

Not street legal, but very light and nible...considering they're m/c frames and not bicycles.
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Re: E crf 250

Postby Farfle » Sat May 19, 2012 9:20 pm

mdd0127 wrote:Good for him! He already had it priced less than the fork would cost. If you find something that's already drastically underpriced.....DON'T FREAKING HAGGLE! Makes me sick. :roll:



Lol, I wouldn't have haggled if I would have had more than 500 bucks to blow lol
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 318A at 91v
Peak power out: 24 Hp and 151ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com
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