Search found 631 matches

by Overclocker
Jan 19 2020 5:29am
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

IMG_20200119_164428.jpg
IMG_20200119_164428.jpg (463.93 KiB) Viewed 62 times
the 26" front wheel was too big so i went 24". this dropped the axle height so i needed a longer fork to maintain the same geometry. good thing i got a marzocchi dropoff triple, lying around
by Overclocker
Jan 18 2020 2:38am
Forum: Motor Technology
Topic: QS 3000w midmotor
Replies: 441
Views: 47666

Re: QS 3000w midmotor

qs1202kwb.jpg i'm planning to get the 2000w version (qs 120). i have a Kelly KLS7230 lying around... now i'm wondering if it would be better to get the Votol also just wanna confirm if Kelly KLS is compatible w/ these motors. i'm not really interested in getting ultimate optimization. i just wanna ...
by Overclocker
Jan 16 2020 4:53am
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1279
Views: 243166

Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

qs1202kwb.jpg
qs1202kwb.jpg (28.7 KiB) Viewed 144 times
qs1202kw.jpg
qs1202kw.jpg (115.74 KiB) Viewed 144 times

hi QS, please verify that the UNLOADED RPM WITHOUT FLUX-WEAKENING is indeed 2800 RPM
by Overclocker
Jan 15 2020 12:08am
Forum: Motor Technology
Topic: Running a 96v motor (HPM3000B) at 68v
Replies: 7
Views: 540

Re: Running a 96v motor (HPM3000B) at 68v

of course i'm going to overclock the 96v motor by feeding in more amps

hpm3000b is 3kw, 6kw max

but the higher resistance of the 96v winding will produce more heat, right?
by Overclocker
Jan 14 2020 1:29am
Forum: Motor Technology
Topic: Running a 96v motor (HPM3000B) at 68v
Replies: 7
Views: 540

Running a 96v motor (HPM3000B) at 68v

Ce-Approved-3kw-Brushless-Electrical-BLDC-Motor-for-Electric-Car-Electric-Motorcycle-Electric-Boat-Electric-Go-Carts.jpg any downsides? i need a low-kv motor so i can get away w/ using a 1-stage reduction w/o the sprockets getting ridiculously big. the latter detail being important when riding in m...
by Overclocker
Jan 14 2020 1:15am
Forum: E-Bike Non-hub Motor Drives
Topic: OpenEMoto
Replies: 94
Views: 15495

Re: OpenEMoto

hi trazor i think i need a bigger motor now. easily hits 100C when bogged down. cruising at around 75c. what do you think of the HPM3000B. it's narrow enough to retrofit into my frame & swingarm Ce-Approved-3kw-Brushless-Electrical-BLDC-Motor-for-Electric-Car-Electric-Motorcycle-Electric-Boat-Electr...
by Overclocker
Dec 30 2019 9:17am
Forum: Battery Technology
Topic: Are AAA batteries prone to leaking?
Replies: 3
Views: 311

Re: Are AAA batteries prone to leaking?

we call them alka-leaks

use aaa nimh or ultimate lithium (pricey)

or lifepo4 and a dummy cell for 2xAAA applications
by Overclocker
Nov 12 2019 1:33am
Forum: E-Bike General Discussion
Topic: where can I find a steel front suspension fork?
Replies: 17
Views: 1391

Re: where can I find a steel front suspension fork?

Image

well even aluminum dual-crown forks eventually fail due to metal fatigue. usually at the stanchion just below the lower crown. so i opted for this rockshox domain w/ steel stanchions
by Overclocker
Nov 11 2019 10:15pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

IMG_20191110_171406.jpg
IMG_20191110_171406.jpg (272.01 KiB) Viewed 688 times
new custom crankset w/ short 152mm arms. i'm getting pedal strikes w/ the "normal" 175mm arms. also added a 48t chainring because 152mm cranks NEVER come w/ 48t :lol:

short arms ideal for ghost pedaling :lol:
by Overclocker
Nov 01 2019 10:21pm
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 157
Views: 27890

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

IMG_20191102_111009 (Medium).jpg jszh vs ga vs 26f.png the higher amp controller needs better cells. i'm taking a gamble w/ these cheap (PHP95 or USD1.86 per piece, landed) chinese cells made by JSZH (jiangsu zhihang new energy). i've cycled a cell and got 97.8% after 152 cycles :shock: that's pret...
by Overclocker
Oct 30 2019 5:16am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 157
Views: 27890

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

IMG_20191101_173656 (Medium).jpg yyk overdrive.jpg so there it is ziptied to the bottom of the saddle. the "overspeed" mode gave me back all the lost speed when i moved to 11t motor sprocket (from 13t). so i got a very nice increase in thrust due to the gearing change, further boosted by the increa...
by Overclocker
Oct 28 2019 10:27pm
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 157
Views: 27890

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

Well done with keeping the bolt and key/keyway. I hadn't had any issue with the quick-lazy of welding it, till I also tried quick-lazy with removing it lol. Turns out my bht is just fine, But will have to see about fixing or another >84v >18fet controller Will you upload a vid of yours in action wh...
by Overclocker
Oct 21 2019 2:20am
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

IMG_20191019_170330.jpg
IMG_20191019_170330.jpg (156.01 KiB) Viewed 764 times
by Overclocker
Oct 21 2019 2:04am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 157
Views: 27890

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

IMG_20191021_113127 (Medium).jpg IMG_20191021_095044.jpg so here's my smaller 11t. basically i bored a hole through a standard motorcycle #420 sprocket then welded a shaft through it. keyway cut w/ a hacksaw :lol: will ride it later, expecting a bit more thrust w/ less top speed yeah that front bea...
by Overclocker
Oct 17 2019 5:29am
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

IMG_20191017_100909 (Medium).jpg
IMG_20191017_100909 (Medium).jpg (203.7 KiB) Viewed 803 times

added kickstand and rear cargo rack
by Overclocker
Oct 14 2019 2:53am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 157
Views: 27890

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

IMG_20191014_131629 (Medium).jpg
IMG_20191014_131629 (Medium).jpg (246.81 KiB) Viewed 910 times
so here's the BHT after being dunked in water multiple times :lol: i really need to seal it up. but the windings seems fine, they could probably take 80A
by Overclocker
Oct 13 2019 3:14am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 157
Views: 27890

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

IMG_20191012_172006 (Medium).jpg
IMG_20191012_172006 (Medium).jpg (286.46 KiB) Viewed 556 times
just ordered a yuyangking YKZ7280JA. 80A square-wave controller. let's hope i don't fry the motor :lol: to help avoid that i'll be installing a smaller 11T motor sprocket (currently 13t, 53t rear)
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3cf2f500919335f042448bd3ce59643d.jpg (84.26 KiB) Viewed 556 times
by Overclocker
Oct 11 2019 11:08pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

it certainly looks powerful, hows it go on those flats this is where the hub motors shine! those are the volcanic sands coughed up by Mt. Pinatubo in the early 90's (which cooled the earth by about a degree). this hub does well on pavement and hardpack. but terrible off-road :lol: so it's never goi...
by Overclocker
Sep 26 2019 10:29pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

Looks cool with the battery showing thru the side panel, be careful of a short! would hate to try to pull that battery out in flames! I always think of that when there are 10x screws locking it in place inside the frame. I'm sure its a ton of fun with that controller, but make sure you have enough ...
by Overclocker
Sep 24 2019 10:56pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

Ouch! I would have taken a ride to the hardware store :) hats off to you haha but i did! they didn't have the exact size. it's a good opportunity to use the tap & die set anyway, these dies (dice?) get rarely used. finally got it running! the KLS7230 is too big (obviously) for this build :lol: both...
by Overclocker
Sep 21 2019 9:30am
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

IMG_20190920_215712.jpg
IMG_20190920_215712.jpg (142.34 KiB) Viewed 1452 times
stainless is a bitch to tap
by Overclocker
Sep 14 2019 1:19am
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

pwd wrote:
Sep 12 2019 2:54pm
That is a beautiful looking battery pack. What is the max current you plan on drawing from it?
thanks. 40A max
by Overclocker
Sep 11 2019 10:16am
Forum: E-Bike Build Threads / Photos & Video
Topic: Non-overclocked Vector Light Build
Replies: 32
Views: 3878

Re: Non-overclocked Vector Light Build

DSC_7860.JPG
DSC_7860.JPG (147.6 KiB) Viewed 1610 times
by Overclocker
Sep 10 2019 2:43am
Forum: General Discussion
Topic: MIG Welding questions
Replies: 21
Views: 2443

Re: MIG Welding questions

so a few months back i went ahead and got a 20lb tank of co2 and regulator. didn't cost much. in retrospect MIG is actually "cheaper" than flux-core since good fluxcore wire is expensive and not copper coated so it rusts, you can't keep it for a long time :evil: just as the OP said MIG does have a "...
by Overclocker
Sep 08 2019 9:14am
Forum: E-Bike Non-hub Motor Drives
Topic: OpenEMoto
Replies: 94
Views: 15495

Re: OpenEMoto

w/ garage built frames the limiting factor is fabbing complexity as trazor has mentioned. it's easy to design in CAD but the difficult part is actually building the damn thing. so the design goal is "good enough" rather than "best" hence no suspension linkages and such. these frames are tough to bui...