Search found 2953 matches

by motomech
Feb 17, 2018 2:26 pm
Forum: E-Bike General Discussion
Topic: Stealth & quick-ish e-bike for short commute, opinions
Replies: 14
Views: 430

Re: Stealth & quick-ish e-bike for short commute, opinions

The MTB would be overkill, for sure. It would be more comfortable, more solid, more fun, safer (in case I do hit a pothole or curb,... Trust me, you WILL hit a pot-hole eventually. I always thought that the "Pie" in the Pie motors meant they are as big as a pie plate. Not very stealthy. Around my n...
by motomech
Feb 17, 2018 10:36 am
Forum: E-Bike General Discussion
Topic: Looking for a chromoly rear rack, any suggestions?
Replies: 5
Views: 127

Re: Looking for a chromoly rear rack, any suggestions?

If your battery pack is so heavy that you worry that it will break the rear rack means that battery pack belongs in the triangle of the frame. The bike will handle and feel way better.
by motomech
Feb 13, 2018 10:23 pm
Forum: E-Bike Photos & Video
Topic: '98 Quintana Roo panamint mxus xf07 350w fr hub
Replies: 42
Views: 1067

Re: '98 Quintana Roo panamint mxus xf07 350w fr hub

Dude, you can kept playing w/ the numbers and make it anything you want to, but I'm telling you, it's a 260 rpm @ 36 Volts motor. In the first place, it's on the stickers on the motor. The 36V sticker means it's a 36 V rated motor. The 26 Inch sticker means it's a mid-speed motor for use in that siz...
by motomech
Feb 13, 2018 3:03 pm
Forum: E-Bike Photos & Video
Topic: '98 Quintana Roo panamint mxus xf07 350w fr hub
Replies: 42
Views: 1067

Re: '98 Quintana Roo panamint mxus xf07 350w fr hub

The motors are rated at 36 Volts.
by motomech
Feb 13, 2018 12:59 pm
Forum: E-Bike Technical
Topic: "Hot rod" ebike on the cheap
Replies: 9
Views: 440

Re: "Hot rod" ebike on the cheap

I don't think such a thing as a ""Hot rod" ebike on the cheap" exists.

I would suggest you read some of the threads by liveforphysics or drbass.
Even if, by some miracle you can out run the 66cc Girl, what would prevent them from installing something like the BBR Stage 4 motor?
by motomech
Feb 13, 2018 12:48 pm
Forum: Battery Technology
Topic: cell imbalance in new hobby king lipo pack
Replies: 6
Views: 160

Re: cell imbalance in new hobby king lipo pack

Yeah, you worry too much.
Do what Dman said and if the brick puffs-up, take a pic and send it to HK.
the Multistars have a high turn-over rate and I suspect that one cell will fall in to line and everything will be ok.
by motomech
Feb 13, 2018 12:17 pm
Forum: E-Bike Technical
Topic: BMSBattery Torque sensor
Replies: 30
Views: 2170

Re: BMSBattery Torque sensor

I look forward to discussing this further with you, and then sharing any pertinent results on this (or other) thread(s). I agree, so lets keep the discussion here. For those looking for the best(most realistic) PAS experience w/out breaking the bank, should try out one of the newer sine-wave contro...
by motomech
Feb 12, 2018 11:03 pm
Forum: E-Bike Technical
Topic: Hobbyking 6S BMS
Replies: 21
Views: 545

Re: Hobbyking 6S BMS

I use a two-stage charge process. After the ride, at some point I will take them up to storage charge- 3.90V-3.95V /cell. Then check 'em. As I start to think about out going out, I will start the top charge while I ck. the tires and air shock. After 10 or 15 minutes, I'm usually between 4.00V and 4....
by motomech
Feb 12, 2018 12:46 pm
Forum: E-Bike General Discussion
Topic: Critique my Build/Plan
Replies: 18
Views: 310

Re: Critique my Build/Plan

Jon NCal wrote:
Feb 12, 2018 1:11 am
6S+6S+4S=16S
oops, I meant 6S + 4S + 4S :oops:
by motomech
Feb 11, 2018 10:18 pm
Forum: Battery Technology
Topic: lipo battery pack wiring with pics
Replies: 10
Views: 5928

Re: lipo battery pack wiring with pics

Are you talking about LiPoly "bricks or Li-Ion cells?
by motomech
Feb 11, 2018 10:13 pm
Forum: E-Bike General Discussion
Topic: Critique my Build/Plan
Replies: 18
Views: 310

Re: Critique my Build/Plan

I have no experience w/ mid-drives and although your desired speeds seem high for a hard-tail, I won't comment on your proposed build per se. But, I do have some experience w/ LiPoly and would strongly recommend that consider bulk charging. One of my bikes uses Multistar 6S + 6S + 4S for 14S and I b...
by motomech
Feb 10, 2018 8:00 pm
Forum: Items Wanted
Topic: WTB- Cute Q100H Motor(s)
Replies: 2
Views: 175

Re: WTB- Cute Q100H Motor(s)

I have a rear 328CST bare motor I'm not using. $50 plus shipping.
https://endless-sphere.com/forums/viewt ... h#p1240933
by motomech
Feb 10, 2018 7:25 pm
Forum: E-Bike Technical
Topic: BMSBattery Torque sensor
Replies: 30
Views: 2170

Re: BMSBattery Torque sensor

Wheezy, I PM'ed you.
I have an extra KT sine wave controller w/ a SLCD-3 display you could try out. If you are looking for the best budget PAS experience, it has 5-level "torque imitation" PAS.
As w/ most of these "off the shelf" ebikes, it could be a little tricky to intergrate.
by motomech
Feb 10, 2018 12:21 am
Forum: E-Bike Technical
Topic: MAC motor controller?
Replies: 21
Views: 657

Re: MAC motor controller?

Thanks for the response, very informative. And now Chalo knows exactly what he has.
by motomech
Feb 10, 2018 12:16 am
Forum: E-Bike Technical
Topic: Cute Q100H Autopsy & Modify 2017
Replies: 29
Views: 911

Re: Cute Q100H Autopsy & Modify 2017

Actually, I mis-labeled the screws we are talking about. They are dished, so they would be dished Allens, no head to speak of. So there is nothing to grab on to if the wrench fails. Either Allens or Phillips, the last resort is cut a slot with a Dremel tool and use the straight bit w/ the impact. A ...
by motomech
Feb 09, 2018 10:14 pm
Forum: E-Bike Technical
Topic: Cute Q100H Autopsy & Modify 2017
Replies: 29
Views: 911

Re: Cute Q100H Autopsy & Modify 2017

I replaced the screws in one of my motors w/ Allen head screws and it was a mistake. The Allen wrench is so small that it wants to bend before applying any real torque. I best way to get the screws out is to use a hand-held impact driver w/ a good bit and replace any of the Phillips screws that star...
by motomech
Feb 09, 2018 4:15 pm
Forum: E-Bike Technical
Topic: MAC motor controller?
Replies: 21
Views: 657

Re: MAC motor controller?

teklektik-Chalo and I are talking about swapping motors. I have a new new Q100H (201, Frt.) laced in a Alex rim and a couple of controllers that might suit his needs better. He has been busy and has tested the BMC, here is his report; I have findings about this BMC motor and controller. First off, t...
by motomech
Feb 09, 2018 2:44 pm
Forum: E-Bike General Discussion
Topic: Q128C specs selection help
Replies: 3
Views: 166

Re: Q128C specs selection help

Here is a really long thread where several of us debated the practically of trying to use a Q128 for 30 +mph build;

https://endless-sphere.com/forums/viewt ... hilit=Q128
by motomech
Feb 06, 2018 11:11 pm
Forum: E-Bike Photos & Video
Topic: '98 Quintana Roo panamint mxus xf07 350w fr hub
Replies: 42
Views: 1067

Re: '98 Quintana Roo panamint mxus xf07 350w fr hub

I think there is a slight interference fit between the axle and the nut, or maybe that's just Chinese machining tolerances :roll: Once they have been re-torqued several times, they will stay put w/out over-tightening. Loctite is a funny thing. First off, the brand name has become synonymous w/ all t...
by motomech
Feb 06, 2018 10:03 pm
Forum: Battery Technology
Topic: Turnigy Multistar - lightweight 10C cells
Replies: 514
Views: 48646

Re: Turnigy Multistar - lightweight 10C cells

I've been using Multistar since they came out, but don 't have any experience w/ big packs and high discharge rates, so I couldn't say of they will "smoke" or not, but don't expect much "punch" like you would get w/a "stiffer" battery pack. A member here, icecube57 did some testing on MultiStar disc...
by motomech
Feb 06, 2018 9:47 pm
Forum: E-Bike Photos & Video
Topic: '98 Quintana Roo panamint mxus xf07 350w fr hub
Replies: 42
Views: 1067

Re: '98 Quintana Roo panamint mxus xf07 350w fr hub

Yeah, they will loosen a couple of times when new. Every time I have the wheel off, I apply lot''s of Blue Loctite w/out cleaning the old locker off. Eventually, it becomes sort of a paste that holds well.
by motomech
Feb 06, 2018 6:41 am
Forum: E-Bike Reviews & Testing
Topic: Performance Gotham 26x1.75 tires mini review
Replies: 5
Views: 1150

WTB "Slick" Urban Hybird

Like many riders here in the South West, I have to deal w/ Goat's Head thorns, nasty little critters that certain times of the year, even get in to the roadway and hard-surface paths. I tried the usual preventive stop-gaps, extra thick tubes, tubes w. Slime, liners, etc. But not till I combined a "f...
by motomech
Feb 06, 2018 5:39 am
Forum: E-Bike Photos & Video
Topic: '98 Quintana Roo panamint mxus xf07 350w fr hub
Replies: 42
Views: 1067

Re: '98 Quintana Roo panamint mxus xf07 350w fr hub

Yeah, but flats are not "delicate" at all.
How tires roll is not that important on an ebike.
by motomech
Feb 05, 2018 6:53 pm
Forum: E-Bike Photos & Video
Topic: '98 Quintana Roo panamint mxus xf07 350w fr hub
Replies: 42
Views: 1067

Re: '98 Quintana Roo panamint mxus xf07 350w fr hub

There not anything special something i can put miles on with a degree of safety and somewhat low rr. I was reading low rr tire reviews when I came across these schwalbe landcruiser tires with reviews on different sites all stating the tire rolled very well it was a common theme with it and I liked ...