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by dogman dan
Aug 10 2020 7:10am
Forum: E-Bike General Discussion
Topic: Unbelievable Weird Noise Elimination Solution
Replies: 6
Views: 196

Re: Unbelievable Weird Noise Elimination Solution

Yep, all kinds of funny noises from all kinds of things can happen when you ride above 15 mph. Can be real hard to get the buzz out of fenders, or other stuff. Always hard to reproduce the noise in the garage, and damn hazardous to try to put a hand on various parts at 30 mph.
by dogman dan
Aug 10 2020 7:02am
Forum: E-Bike General Discussion
Topic: E-bike for 2 grand ?
Replies: 23
Views: 337

Re: E-bike for 2 grand ?

You won't get much advice here on buying ready to ride, 99% of us here are strictly DIY. I have also seen some ready to ride e bikes that are abysmal garbage. I have also rode some much higher priced than 2000 bucks that I would love to have, but not at that kind of money. I'm just cheap, and there ...
by dogman dan
Aug 10 2020 6:55am
Forum: E-Bike General Discussion
Topic: need help downgrading from mxus 3k
Replies: 10
Views: 153

Re: need help downgrading from mxus 3k

Well, you are all set up to limit your max wattage to whatever you like. So you may as well run that, at least for now. A very cheap experiment would be to get a typical 48v 1000w kit motor. (these weigh 15 pounds with rim and spokes) Those are usually a wind that goes 30 mph on 48v, and while its a...
by dogman dan
Aug 08 2020 1:03pm
Forum: E-Bike General Discussion
Topic: Hitch-mounted bike carrier for 150 lb of ebikes
Replies: 63
Views: 22885

Re: Hitch-mounted bike carrier for 150 lb of ebikes

Part of why I just bought the big van. Holds a dirt bike, e bike, and pedal bike inside with ease. and can carry a couple kyacks on top. And then tows a small house to 9,000 feet, where I can breathe again. Allergic to nothing at that height.
by dogman dan
Aug 01 2020 1:12pm
Forum: E-Bike General Discussion
Topic: How much power is too much power? (hub motor)
Replies: 42
Views: 811

Re: How much power is too much power? (hub motor)

Its the hucking that really breaks shit, IMO. Put a honking 25 pound copper weight on your rear wheel of a hardtail, then fly off curbs, up curbs, or just get air from the humps in the road. That tends to do er, i think. Your townie 21 d however, has a much more robust rear dropout plate than many b...
by dogman dan
Aug 01 2020 1:10pm
Forum: E-Bike General Discussion
Topic: How much power is too much power? (hub motor)
Replies: 42
Views: 811

Re: How much power is too much power? (hub motor)

Its the hucking that really breaks shit, IMO. Put a honking 25 pound copper weight on your rear wheel of a hardtail, then fly off curbs, up curbs, or just get air from the humps in the road. That tends to do er, i think. Your townie 21 d however, has a much more robust rear dropout plate than many b...
by dogman dan
Jul 26 2020 6:11am
Forum: E-Bike General Discussion
Topic: New 52V21Ah battery was stored for 30 days fully charged. How bad is it?
Replies: 21
Views: 737

Re: New 52V21Ah battery was stored for 30 days fully charged. How bad is it?

Lets go back to the real world. If you are gonna use this thing much, you will have it full charged most of the time. How you gonna ride it every day, unless you keep it full and ready to ride? It will be full so you can hop on and ride anytime. Yes, it costs you some lifespan, but a decent battery ...
by dogman dan
Jul 26 2020 6:02am
Forum: E-Bike General Discussion
Topic: Battery vs controller vs motor rating limitations
Replies: 17
Views: 645

Re: Battery vs controller vs motor rating limitations

FWIW, getting a better battery would help, as the others said. What happens to a weak battery is it sags voltage under load. This means not only does the battery voltage drop as you drain it,( normal) but it also drops more because of the load it can't handle. This makes it cut off before its fully ...
by dogman dan
Jul 20 2020 5:37am
Forum: E-Bike General Discussion
Topic: Do I need I need to wrap this?
Replies: 8
Views: 240

Re: Do I need I need to wrap this?

I'd definitely insulate it somehow, it can't be touching metal stuff.

I happen to have some larger shrink tube around, so that is what I would use. But a section of inner tube, box made for it, half a roll of duct tape, whatever is handy at the house will work.
by dogman dan
Jul 15 2020 2:09pm
Forum: E-Bike General Discussion
Topic: Electra Ghostrider from a newbie
Replies: 17
Views: 335

Re: Electra Ghostrider from a newbie

Brakes up front a plus. But to look good, put a smaller geared front hub on it. Not a tiny 250w, but a 500w rated motor, with 1000w of peak power available. It will look a lot better than a larger, cheaper, direct drive hub motor on it. I'm assuming by the bike choice, looks is almost the most impor...
by dogman dan
Jul 15 2020 1:54pm
Forum: E-Bike General Discussion
Topic: E-Bike Charger to Generator Power
Replies: 5
Views: 123

Re: E-Bike Charger to Generator Power

And to finish the calculation, 6 amps x 120v is 720 watts. 10 amps of 240 would be 2400w So one of those very affordable 800w 2 stroke generators will do er right? uh, not so fast. First you have the difference between peak start up watts, and continuous watts. Some cheaper generators will put out a...
by dogman dan
Jul 15 2020 5:18am
Forum: E-Bike General Discussion
Topic: How to ship a 28kg ebike
Replies: 2
Views: 110

Re: How to ship a 28kg ebike

Strap it to a pallet, with a box over the bike that is screwed to the pallet. The pallet would need to have wood or metal that holds the tires in place, sort of like a bike rack. Or, ship the bike frame in a standard bike box, with padding as needed to protect all the wiring that could rub. Then the...
by dogman dan
Jul 15 2020 5:03am
Forum: E-Bike General Discussion
Topic: Electra Ghostrider from a newbie
Replies: 17
Views: 335

Re: Electra Ghostrider from a newbie

Yes, that is the good option for making that frame take a rear motor. kind of like a mega torque arm, a long piece of steel plate would be bolted to the rear dropouts on the outside of the frame. Up front, it would be wide enough to also attach to both rear stays with U bolts. Or maybe there is enou...
by dogman dan
Jul 15 2020 4:54am
Forum: E-Bike General Discussion
Topic: Why fat tires on a street ebike?
Replies: 81
Views: 2126

Re: Why fat tires on a street ebike?

Saukit. It sounds to me like your frame starts to high speed wobble at around 30 mph,, Many bike frames do. They start flexing from side to side too much. I don't think its the tires keeping you from going faster. Its the side to side stiffness of the frame, as well as other factors like wheelbase l...
by dogman dan
Jul 14 2020 6:29am
Forum: E-Bike General Discussion
Topic: Newb questions about 1st ebike build ??
Replies: 34
Views: 722

Re: Newb questions about 1st ebike build ??

Brake cutoffs are vital if you have pedal assist instead of a throttle. Don't connect pedal assist, and you can skip the E brakes IMO. You can have a runaway motor, but its pretty rare with brushless controllers. E brakes became the norm when brushed motors were highly likely to run away if the cont...
by dogman dan
Jul 14 2020 6:20am
Forum: E-Bike General Discussion
Topic: Why fat tires on a street ebike?
Replies: 81
Views: 2126

Re: Why fat tires on a street ebike?

People ride fat bikes on street to look cool, that's for sure. Back in the 80's I lived in a trailer slum where the road to the slum was a half mile of sandy road. We pretty much gave up riding bikes altogether, then tried mountain bikes when they came out. Still sucked on that road. Didn't take up ...
by dogman dan
Jul 14 2020 6:14am
Forum: E-Bike General Discussion
Topic: Electra Ghostrider from a newbie
Replies: 17
Views: 335

Re: Electra Ghostrider from a newbie

Yep, aluminum frame. But it looks like the 3i model has a front disc brake. Yours appears not to. But that means a fork change is possible. Also, betcha the fork is steel, meaning you can weld on the fork to put a disc brake up front. You'd still have no brakes in back,, and you'd still have to find...
by dogman dan
Jul 14 2020 6:09am
Forum: E-Bike General Discussion
Topic: Electra Ghostrider from a newbie
Replies: 17
Views: 335

Re: Electra Ghostrider from a newbie

Agree with some of the above. The only easy way is a front motor. If you put a rear motor on it, one with a freewheel, you will have no brakes at all, since the bike has coaster brakes. So that's not easy. Front motor will have poor traction, but that beats no brakes in my world. But what that bike ...
by dogman dan
Jul 13 2020 6:21am
Forum: E-Bike General Discussion
Topic: Basics for Newbie///
Replies: 42
Views: 957

Re: Basics for Newbie///

First thing to look at is the charger to battery plug connections. I'd start looking at the connections between cells on your battery. if the cells have enough voltage for the charger to start, but they have a break somewhere, the charger thinks its not safe to start charging. Pretty clear this is a...
by dogman dan
Jul 12 2020 5:58am
Forum: E-Bike General Discussion
Topic: My situation explained
Replies: 20
Views: 438

Re: My situation explained

Well, the real problem is you need it so cheap. You can get wheels re laced to 20". but you need the skills, or the money. You can buy 48v DD kits in 20" wheel, but the really cheap ones are 26" BEST solution is not cheap, a Bafang mid drive kit. Your weight does matter a lot.. But you said 200 poun...
by dogman dan
Jul 12 2020 5:46am
Forum: E-Bike General Discussion
Topic: Ebikes are much safer than non-assisted bikes
Replies: 17
Views: 399

Re: Ebikes are much safer than non-assisted bikes

Have to agree with what John says. Along with my house burned down by an ebike, its one of the major reasons I went to the dark side. But I also wanted a lot better tires if I was going to go that fast too, and insurance in case I hit somebody somehow. Today, sub three buck diesel has the 18 wheeler...
by dogman dan
Jul 11 2020 6:22am
Forum: E-Bike General Discussion
Topic: Ebikes are much safer than non-assisted bikes
Replies: 17
Views: 399

Re: Ebikes are much safer than non-assisted bikes

Well, I was barely rolling when I got my water bottle stuck in the front wheel. Crushed my helmet hitting the curb, broke both collarbones, ruined my rotator cuffs for life. It was my third day riding a bike unfamiliar to me. Same thing likely happens on those bike rentals. Strange bike, maybe not r...
by dogman dan
Jul 11 2020 6:14am
Forum: E-Bike General Discussion
Topic: My situation explained
Replies: 20
Views: 438

Re: My situation explained

Actually, the best solution for you may well be the old school Currie drive system. I think you can still buy them somewhere. https://electricscooterparts.com/curriebicyclekits.html Brushed,( or used to be) so not so great for long rides. yours aint long. Noisy, so not so great for long rides, yours...
by dogman dan
Jul 10 2020 6:26am
Forum: E-Bike General Discussion
Topic: Back from the dead and Izip Question
Replies: 35
Views: 677

Re: Back from the dead and Izip Question

Yeah, highway on my 150 roketta was scary. It only did about 50, speedo would say 70 though. The burgman and majesty did legit 70, but here out west still a bit scary on the freeway if it got crowded. I 25 ok, but not I 10. I had to hunt down the secondary roads when possible. I bought the bmw so I ...
by dogman dan
Jul 10 2020 5:52am
Forum: E-Bike General Discussion
Topic: Rear Derailleur Compatibilty for 5speed
Replies: 19
Views: 350

Re: Rear Derailleur Compatibilty for 5speed

Interesting about the spacing for 5 and 7. I thought it was the same for both, then changed for 8 speed. I often run a 7 speed motor wheel with 8 speed shifter, but then it runs smooth enough in only 3 of the gears. If I really need the lower gears, I can tweak the barrel nut on the shifter, or dera...