mwkeefer wrote:Electric wins again! - Nice battery case at rear frame side like panniers or saddle bags. I appreciate the electric frame geometry so much better... so I guess you won't be needing the stingray (the vette) anymore - jk
methods wrote:If only the 9C didn't whine audio stealth could also be achieved.
biohazardman wrote:Giant Trance3 BMC 600 build
Well figured before and after should be done before I had trashed the thing.
Before it was one of these.
Now as an e-bike it looks like this
Building a couple of wheels with 12ga spokes
Upgrading to 8inch brake rotors
Installing a 600BMC rear motor with a crummy axle DÃƒÂ©jÃƒÂ -vu
Replacing the MTB crank with a 53-tooth road crank and finding an 11-34 freewheel
Modding a throttle for remote operation
Building my first real A123 pack 2p14s
Installing a rear rack and pack
Fitting fenders that didn't fit.
Putting together a brake motor cutout switch
Modding a Kickstand so it would fit
Putting on a torque arm. and a few goodies lights, speedo mirror ect.
Top speed 1st gear locks on at 17mph 2nd gear at 30mph controlled by thumb on the the Shimano rapid-shift front derailleur. Finger lever used to release the locked throttle.
Climbs hills 4mph faster than my GM 500w motor at the same 48V but it is not silent. Cushy ride across the playground, down the dirt roads, off curbs ect.
52lbs with the cable lock, kickstand , 4.6AH bat that gets me near 7 miles at 30MPH. Does not tear my back up like the hard tail Schwinn did.
Still working on;
Battery pack 2
600LM bike light kit
5 amp and 8amp chargers as well as 2.8 amp on board.
single wheeled trailer for extra batts and range as well as hauling
lets not forget to replace the hose clamp being used for the torque bar
This build took just over a year and it was done with little use of my damaged right arm. The arm is good enough to ride now so I am doing plenty of it 190 miles so far.
More info on the build viewtopic.php?f=3&t=11478
biohazardman wrote:I was lucky the rear triangle had holes of the right size and in the right place to feed the motor wires through. Hard to believe when I first saw it. I just had to remove the burrs at the edges of the holes to make it a tight but manageable fit for the motor wires. Wires go into the triangle just behind the kickstand and come out of the triangle and back into the suspension through another factory hole within an inch. There is not much, room for the A123 batteries in the triangle though. Lipo soon to come and they will fit better, take up less space, even with the upgrade from 48 to 60V.
colby wrote:thanks guys!
i really appreciate it.
yeah, they turned out well considering my limited tools and space (hacksaw and a power hand drill) the bracket is kind of my signature for my bikes it definitely has more purpose on the EB1.
i really liked the EB1, but i built the EB2 because i wanted something safer and lighter at higher speeds and have the ability to shift the motors.
the EB1 was heavy as hell and every time you would hit a pothole you thought you might die
EB2 is a 2006 giant pistol 1 with aluminum frame. great bike. hayes hydraulic disc brakes, fox rear shock, etc. here's a link about it:
http://www.mtbr.com/cat/older-categorie ... 76crx.aspx
here's a couple more pics.
changes to come:
24" rims with 2.5 hookworms
new custom bracket/battery box and home made seat (kind of like a dirtbike seat)
kelly 100 amp controller...and if the motors die after proper cooling and gearing. maybe a etek/mars or possibly rc. the motors should be fine though (short 4kw bursts with very low gearing) will see though
2 more bosch fat packs (in the mail right now)
thanks for looking
think I'll start a separate thread for this