Search found 541 matches

by Overclocker
Apr 23 2019 1:53am
Forum: E-Bike Non-hub Motor Drives
Topic: Electric free ride build from scratch
Replies: 40
Views: 1232

Re: Electric free ride build from scratch

Bonneville wrote:
Apr 22 2019 12:23pm
Any one knows what the kV is for a Denzel 4500 ?

probably 60?

have you decided on your chain/sprocket size? i'm using #420 btw...
by Overclocker
Apr 23 2019 1:50am
Forum: E-Bike Non-hub Motor Drives
Topic: Chains and sprockets, info and index
Replies: 14
Views: 20761

Re: Chains and sprockets, info and index

https://i.imgur.com/cecYiDu.jpg i'm currently using cheap counterfeit 420 chains which don't last very long in the terrain i ride in (sandy dusty, muddy, river crossing, etc). i'm thinking of trying this KANA #41 industrial chain. #41 uses the same sprockets as #420 but has slightly smaller pins. b...
by Overclocker
Apr 11 2019 6:34am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame

thanks skeetab!

Image

just got a budget quad piston for the front only. the rear tire is already easy to lockup
by Overclocker
Apr 11 2019 6:07am
Forum: Large EV General Discussion
Topic: Suzuki kei truck at 50kph flat ground
Replies: 10
Views: 259

Re: Suzuki kei truck at 50kph flat ground

thanks chalo very helpful :roll: https://www.diyelectriccar.com/forums/showthread.php?t=15508 i found this formula: The POWER requirements of your car at a particular speed is: Power in Watts = ((Mass in kg) (9.8m/s²) (Velocity in m/s) (Rolling Resistance)) + ((0.6465) (Coefficient of Drag) (Area in...
by Overclocker
Apr 11 2019 12:46am
Forum: Large EV General Discussion
Topic: Suzuki kei truck at 50kph flat ground
Replies: 10
Views: 259

Re: Suzuki kei truck at 50kph flat ground

Why the smallest motor? Why not the most dependable, most efficient, or most cost effective? You're already opting for 700kg of relatively useless pig iron, after all. If you want to use the smallest motor, figure out the power requirement at 50kph and use an RC airplane motor that delivers that mu...
by Overclocker
Apr 11 2019 12:36am
Forum: Large EV General Discussion
Topic: Suzuki kei truck at 50kph flat ground
Replies: 10
Views: 259

Suzuki kei truck at 50kph flat ground

Image

660cc engine (to be removed)

700kg (ish) curb weight

i just need it to cruise at 50kph on flat roads. what's the smallest motor that could do this? a golden motor 5000w watercooled would do it?
by Overclocker
Apr 10 2019 11:50pm
Forum: E-Bike Non-hub Motor Drives
Topic: Electric free ride build from scratch
Replies: 40
Views: 1232

Re: Electric free ride build from scratch

yeah it climbs pretty much everything around here. btw i'm also planning on using a smaller motor sprocket to sacrifice top speed for more torque. since you ordered a Kelly just start conservatively then start upping the amps if you see that the motor isn't getting hot as for the cells since you'll ...
by Overclocker
Apr 10 2019 3:57am
Forum: E-Bike Non-hub Motor Drives
Topic: Electric free ride build from scratch
Replies: 40
Views: 1232

Re: Electric free ride build from scratch

https://secondlifestorage.com/repackr.php this tool should help you group your cells to have the least capacity differences across parallel groups denzel d4500 is a 5kg motor, in the same class as my BHT. i got a thermal sensor directly on the windings and i'm getting up to 90C in difficult terrain....
by Overclocker
Apr 07 2019 9:55pm
Forum: Large EV General Discussion
Topic: Tata Nano, two small motors on a single shaft
Replies: 1
Views: 158

Tata Nano, two small motors on a single shaft

ETxw6cO6-k8 this guy put two small motors, kinda like the BHT i'm using or probably slightly bigger, on a single shaft to drive the "world's cheapest car" (600-ish kg curb weight WITH engine which he removed) would probably overheat the motors, right? also aren't there synchronization or load shari...
by Overclocker
Apr 04 2019 2:45am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame

trazor and madin888, it was a race but nothing serious, was just for fun. slow twisty track so i didn't even put on all my gear, coz i'm not an all-the-gear all-the-time person :lol: but thanks for the links trazor! when out trail riding i put on elbow, knee/shin, gloves, and hiking boots. PS here's...
by Overclocker
Apr 02 2019 7:03am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame

if you use by rated power my motor give to you zero problem ;) my new motor builded in unitemotor factory and cant say is bad quality nothing to do w/ rated power. the yellow phase wire wasn't properly tied in so it ended up touching the rotor. a quality control issue anyway i just got back from an...
by Overclocker
Mar 25 2019 2:28am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame

https://i.imgur.com/jm4nAvT.jpg still need to tidy up the wiring. then add yellow and red graphics to the battery box to match the color scheme of the fork. etc https://i.imgur.com/hiwZmcM.jpg then i found this lightweight 17" rim. so together w/ 12-gauge spokes should reduce weight as well as be a...
by Overclocker
Mar 19 2019 6:00am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame

madin88 wrote:
Mar 18 2019 8:35am
Did you paint the frame or is it powdercoat? Looks nice :thumb:
rattle can :lol:
by Overclocker
Mar 18 2019 7:44am
Forum: E-Bike Non-hub Motor Drives
Topic: Electric free ride build from scratch
Replies: 40
Views: 1232

Re: Electric free ride build from scratch

in retrospect i'd have to say that i should not have put the motor in the swingarm :lol: i did it in an effort to simplify things but i can see now that mounting it in the frame doesn't really add more complexity and it's definitely still possible to have the motor coaxial w/ the pivot to avoid "cha...
by Overclocker
Mar 12 2019 9:19pm
Forum: E-Bike Non-hub Motor Drives
Topic: Electric free ride build from scratch
Replies: 40
Views: 1232

Re: Electric free ride build from scratch

check out this thread re zoom: https://endless-sphere.com/forums/viewtopic.php?t=68861 https://www.aliexpress.com/item/24X24MM-150-240MM-550-650-750-900-1100-DNM-22LAR-DV-Mountain-Bicycle-Rear-Oil-Suspension/32951530325.html your air shock will probably work but i'm a bit worried about long-term dur...
by Overclocker
Mar 12 2019 10:31am
Forum: E-Bike Non-hub Motor Drives
Topic: Electric free ride build from scratch
Replies: 40
Views: 1232

Re: Electric free ride build from scratch

yes the zoom is really bad. in fact it comes w/ a warning label. check it out. i says not for aggressive riding or something to that effect :lol: i cracked mine by simply tightening the pinch bolts so the metallurgy is very suspect. also they don't have any kind of damping i.e. they're pogo sticks, ...
by Overclocker
Mar 12 2019 6:06am
Forum: E-Bike Non-hub Motor Drives
Topic: Electric free ride build from scratch
Replies: 40
Views: 1232

Re: Electric free ride build from scratch

sgkiock4p9M nice build! i have a similar one, do check out my build thread btw is that your final swing-arm? also the zoom fork is kinda dodgy for electric motorcycle use. i know coz i have one :lol: better find an RST R-One if you need a budget fork. i was supposed to use the RST for my build but ...
by Overclocker
Mar 04 2019 9:56am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame

Image

so i just got the temp sensor installed. bonded to the windings w/ DIY thermal adhesive. i just mixed zinc oxide powder and hi-temp silicone gasket maker
by Overclocker
Mar 01 2019 9:48pm
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame



i should not have procrastinated w/ the sensor install. i would've seen that the yellow phase wire was rubbing against the rotor. eventually the insulation and copper wire wore off and started acting like brushes, hence the scorch marks

quality on this BHT motor is really crap :lol:
by Overclocker
Feb 25 2019 12:55am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame

https://i.imgur.com/8uJow6E.jpg https://i.imgur.com/5oL4JRm.jpg will do the shunt mod ASAP and also the temp probe on the windings. if power is still inadequate and there's still some thermal headroom i'll probably get the kelly controller speaking of thermal headroom. what's the safe max temp of t...
by Overclocker
Feb 23 2019 1:19am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame

The BHT runs nice on the KLS or KBS series but the LRHDD does not run on the KLS series, had to buy a KBS controller for that bike tried every solution I saw on this forum to resolve the distorted hall signal and failed excellent progress btw! great job on the build. My Kuberg bike didn't feel righ...
by Overclocker
Feb 21 2019 11:21pm
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 134
Views: 17601

Re: New build, BHT mid-drive "direct", custom frame

https://i.imgur.com/vyME3vg.jpg haha i was looking at the same thing! but blue https://i.imgur.com/O6fWxf6.jpg i actually don't mind bending those cheapo pedals. but they might deform the frame during a crash. so yes i'll be switching to pegs soon. will add a bolt-on mounting plate here also the 17...