RC-Monster Forums  
RC Monster

Go Back   RC-Monster Forums > RC-Monster Area > General Discussion

Reply
 
Thread Tools Rate Thread Display Modes
Build me a center drive Ebike
Old
  (#1)
snellemin
2 KiloWatt RACER
 
snellemin's Avatar
 
Offline
Posts: 2,496
Join Date: May 2007
Location: Houston
Build me a center drive Ebike - 10.06.2012, 06:45 PM

I build me a center drive ebike with a GNG kit with 12s1p lipo. The kit needed some tweaking and got it to work. Found me a Giant Prodigy frame on ebay and started from there. Well the bike is nice and light, but can't handle the torque the motor/gearing setup produces. The rear of the frame just twist under load. Bummer that after all that work, I will have to take it apart again and set it up with as something different.






6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
Reply With Quote
Old
  (#2)
Semi Pro
RC-Monster Titanium
 
Semi Pro's Avatar
 
Offline
Posts: 1,402
Join Date: Aug 2008
Location: Twin Citys Mn
10.06.2012, 09:17 PM

thats sexy


is that a kit or custom drive set up?


Quote:
Originally Posted by Semi Pro View Post
......maybe they want to be more like novak
Quote:
Originally Posted by BrianG View Post
I'm telling Patrick you said that!
   
Reply With Quote
Old
  (#3)
snellemin
2 KiloWatt RACER
 
snellemin's Avatar
 
Offline
Posts: 2,496
Join Date: May 2007
Location: Houston
10.06.2012, 11:09 PM

Thanks Semi. It's a kit I bought from Hong Kong. Also available through Ebay. I opted to buy directly from their website and paid for the fastest shipping to reduce handling damage going with the slow boat.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
Reply With Quote
Old
  (#4)
bdebde
That's All Folks!
 
bdebde's Avatar
 
Offline
Posts: 2,359
Join Date: Dec 2006
Location: in a VAN down by the RIVER
10.07.2012, 02:13 AM

That looks nice. What kind of speeds will you get with it?
   
Reply With Quote
Old
  (#5)
mistercrash
Guelph, Canada, eh!
 
mistercrash's Avatar
 
Offline
Posts: 1,083
Join Date: Sep 2007
Location: Guelph, Ontario, Canada
10.07.2012, 08:09 AM

He won't get much speed out of it me thinks with the rear end twisting from the torque. That bike is uber nice, it really looks fantastic. But the rear part does look a bit flimsy which is a shame, this bike really looks awesome. Any way of strengthening the rear? I'm guessing that it's all aluminum?


No brain, no headaches.
   
Reply With Quote
Old
  (#6)
snellemin
2 KiloWatt RACER
 
snellemin's Avatar
 
Offline
Posts: 2,496
Join Date: May 2007
Location: Houston
10.07.2012, 10:43 AM

Speed wise it felt like 20mph or so. I don't have the Cycle Analyst hooked up yet. I tested the climbing ability in the retention pound and speed in my neighborhood. I broke the chain the second time out and had too buy a new one. Also have a wipperman chain on order.
The bike is nice and took me a bit to find all the pieces to build it up. It's all aluminum and would be nice if Monster Mike could build this drive setup for us to run with big outrunner motors and Castle ESC's.
The bike really fits well and is so easy to ride. Everything is so well balance and would hate to mess it up with a rear mounted motor.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
Reply With Quote
Old
  (#7)
_paralyzed_
working on a brushless for my wheelchair.....
 
_paralyzed_'s Avatar
 
Offline
Posts: 4,890
Join Date: Mar 2007
Location: minnesnowta
10.07.2012, 02:14 PM

I don't get it. Is it a ratcheting crankshaft with a fixed rear gear cluster?

To me it looks like the pedals would be spun under power


_______________________________________

It's "Dr. _paralyzed_" actually. Not like with a PhD, but Doctor like in Dr. Pepper.
   
Reply With Quote
Old
  (#8)
snellemin
2 KiloWatt RACER
 
snellemin's Avatar
 
Offline
Posts: 2,496
Join Date: May 2007
Location: Houston
10.07.2012, 02:32 PM

nah, the pedal cranks are also on a freewheel setup. I'm guessing a vid is in order huh.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
Reply With Quote
Old
  (#9)
_paralyzed_
working on a brushless for my wheelchair.....
 
_paralyzed_'s Avatar
 
Offline
Posts: 4,890
Join Date: Mar 2007
Location: minnesnowta
10.07.2012, 02:48 PM

Quote:
Originally Posted by snellemin View Post
nah, the pedal cranks are also on a freewheel setup. I'm guessing a vid is in order huh.
I get it then. I said "ratcheting" crank, you said freewheel, we mean the same thing.

I had a schwinn road bike years ago (back when me legs worked) that had the freewheel at the crank rather than the gear cluster.

Is that a hose clamp holding it to the down tube?


_______________________________________

It's "Dr. _paralyzed_" actually. Not like with a PhD, but Doctor like in Dr. Pepper.
   
Reply With Quote
Old
  (#10)
snellemin
2 KiloWatt RACER
 
snellemin's Avatar
 
Offline
Posts: 2,496
Join Date: May 2007
Location: Houston
10.07.2012, 03:21 PM

That hose clamp keeps up a bit of the weight. Most is held by the bottom bracket, which is also supplied by the vendor.

I feel stoopid missing the "ratcheting" remark. You can tell I'm not the brightest Sherlock around.

This is what came in the box.
controller, crank, bottom bracket, throttle, small chain, and the motor/tranny assembly.






6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
Reply With Quote
Old
  (#11)
Semi Pro
RC-Monster Titanium
 
Semi Pro's Avatar
 
Offline
Posts: 1,402
Join Date: Aug 2008
Location: Twin Citys Mn
10.07.2012, 10:32 PM

Quote:
Originally Posted by snellemin View Post
Thanks Semi. It's a kit I bought from Hong Kong. Also available through Ebay. I opted to buy directly from their website and paid for the fastest shipping to reduce handling damage going with the slow boat.
do you mind if i ask what it cost?


Quote:
Originally Posted by Semi Pro View Post
......maybe they want to be more like novak
Quote:
Originally Posted by BrianG View Post
I'm telling Patrick you said that!
   
Reply With Quote
Old
  (#12)
snellemin
2 KiloWatt RACER
 
snellemin's Avatar
 
Offline
Posts: 2,496
Join Date: May 2007
Location: Houston
10.08.2012, 11:10 AM

It was 436 with the fast shipping. Go cheaper with the shipping and you risk damage to your package.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
Reply With Quote
Old
  (#13)
snellemin
2 KiloWatt RACER
 
snellemin's Avatar
 
Offline
Posts: 2,496
Join Date: May 2007
Location: Houston
10.15.2012, 08:02 PM

So I stuck GnG drive in a Hard tail Fuji bike. I'm going to use Lyen 6fet mini monster, Left hand throttle, 3 speed switch, with 14s1p lipo.
Replaced some of the metal spacers with Nylon ones. The spring on the idler is tighten up a bit, adding some tension to it. I'll add some threat locker too. Got to see what other screws I can find at the Ace hardware store. Still need to finished wiring it up and adding the CA. Installed a Connex 9 speed chain, hoping I won't snap like the chain on the Prodigy.








6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
Reply With Quote
Old
  (#14)
Semi Pro
RC-Monster Titanium
 
Semi Pro's Avatar
 
Offline
Posts: 1,402
Join Date: Aug 2008
Location: Twin Citys Mn
10.15.2012, 09:28 PM

cool update


Quote:
Originally Posted by Semi Pro View Post
......maybe they want to be more like novak
Quote:
Originally Posted by BrianG View Post
I'm telling Patrick you said that!
   
Reply With Quote
Old
  (#15)
_paralyzed_
working on a brushless for my wheelchair.....
 
_paralyzed_'s Avatar
 
Offline
Posts: 4,890
Join Date: Mar 2007
Location: minnesnowta
10.16.2012, 03:49 AM

I love the color scheme of that bike


_______________________________________

It's "Dr. _paralyzed_" actually. Not like with a PhD, but Doctor like in Dr. Pepper.
   
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump



RC Monster




Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
vBulletin Skin developed by: vBStyles.com