Search found 34673 matches

by dogman dan
Nov 17 2019 7:33am
Forum: E-Bike General Discussion
Topic: Preventing BBSHD Removal
Replies: 25
Views: 995

Re: Preventing BBSHD Removal

I have to agree, they take really easy stuff like your saddle or front wheel, or they take the whole bike. The real pro thieves have cordless grinders to cut any lock in 10 seconds. Or, they just target cable locks and cut the cable with nail clippers. That way they don't carry burglar tools around....
by dogman dan
Nov 17 2019 7:26am
Forum: E-Bike General Discussion
Topic: where can I find a steel front suspension fork?
Replies: 17
Views: 668

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

Rock shocks will be fine I think. Go with a bmx handlebar if you must to get them back up where you like them. Usually they will need a shim to fit the stem, but you can cut a shim from some thin aluminum sheet. Thicker than a steel can, but still thin.
by dogman dan
Nov 16 2019 8:35am
Forum: E-Bike Technical
Topic: Conversion of a e-bike into a trike
Replies: 5
Views: 374

Re: Conversion of a e-bike into a trike

I would say that to do it cheap, you start with a wire feed welder. Nothing bolt on would qualify as cheap, even if you found it. One of the coolest things I saw at interbike about 3 years ago, was a tilting tadpole cargo trike. The front of it looked a lot like a standard dolly, but its wheels tilt...
by dogman dan
Nov 16 2019 8:07am
Forum: E-Bike General Discussion
Topic: Helmet bike mounted cameras
Replies: 7
Views: 391

Re: Helmet bike mounted cameras

If you get killed, your heirs will get mo money when the attorney shows the video. Or if you survive, it might help cops find the hit and run driver. People that just f--k with you, cops won't care, in the US anyway. And,, when I was younger,the LAST thing I would want is proof of how I rode then. T...
by dogman dan
Nov 16 2019 7:59am
Forum: E-Bike General Discussion
Topic: Axle does not fit into dropouts perfectly
Replies: 6
Views: 334

Re: Axle does not fit into dropouts perfectly

Well, at the very least, one good torque arm is needed for sure. Try to modify the other grin arm so it can fit. Play with different ways to put it together, or grind a notch in it to go around that bolt. I would file the drop out deeper, till the center of your motor axle matches where the center o...
by dogman dan
Nov 16 2019 7:44am
Forum: Battery Technology
Topic: MPPT Boost/ or Buck Controller that will Charge Hobby Lipo Batteries ?
Replies: 1
Views: 214

Re: MPPT Boost/ or Buck Controller that will Charge Hobby Lipo Batteries ?

I just have a 12v charger, which is on my trailers house batteries. So with this in the yard, I'm solar charging the house batteries, and then running a 12v powered lipo charger off that. I have this panel out there keeping a big lead battery full, so I just tap that to charge my lipos now. Not what...
by dogman dan
Nov 16 2019 7:29am
Forum: Battery Technology
Topic: What battery to choose after your last one burned your house.
Replies: 113
Views: 6417

Re: What battery to choose after your last one burned your house.

My assumption has always been that in my fire, the bms failed, a cell overcharged, and vented flame. This dominoes to all the other cells. Fuses are great at protecting from shorts. a fuse type connection between each parallel group of cells in a bike pack seems like a good idea to me. Every cell, I...
by dogman dan
Nov 16 2019 7:16am
Forum: Battery Technology
Topic: Acceptable Battery Sag
Replies: 16
Views: 724

Re: Acceptable Battery Sag

Power is always lost, always to heat. Heat in the battery cells, heat in the controller, and heat in the motor. The question is, how much. It would be great to ride around at 90% efficiency all the time, but its not going to get you much assist riding that way. Maybe not even enough to overcome the ...
by dogman dan
Nov 14 2019 7:13am
Forum: E-Bike General Discussion
Topic: BattMeter - just another wattmeter
Replies: 6
Views: 334

Re: BattMeter - just another wattmeter

Much smaller, old farts like me won't be able to read it. Its fine.
by dogman dan
Nov 14 2019 7:07am
Forum: E-Bike General Discussion
Topic: where can I find a steel front suspension fork?
Replies: 17
Views: 668

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

Yeah, Now that we know you don't weigh 400 pounds, we can safely say you will be fine with any decent alloy lower fork. But not the cheap ass steel fork common on bikes for kids. Just get a decent fork made for adult riders to ride dirt trail, preferably non threaded, and it will stand up fine. Bear...
by dogman dan
Nov 12 2019 7:11am
Forum: E-Bike General Discussion
Topic: Convert 2 Classic MTBs to eBikes
Replies: 7
Views: 299

Re: Convert 2 Classic MTBs to eBikes

You start with what you have, typically. Nothing wrong with the frames on either bike. But you are clearly a guy who needs to go buy a good FS MTB, someday. I don't know how rough your trails are. I live in the rocky mountains, and single track around here is often enough a rock staircase. You just ...
by dogman dan
Nov 12 2019 7:07am
Forum: E-Bike General Discussion
Topic: Why not comfort bikes?
Replies: 87
Views: 2563

Re: Why not comfort bikes?

I can just imagine how weak my brazing would be, my welding is a joke. I start with a bike frame, best I can get hold of, very high quality cro mo. After that, I could be using anything handy to finish out the frame. I have collected a lot of junk frames, always looking for good tube, but I will use...
by dogman dan
Nov 12 2019 6:50am
Forum: E-Bike General Discussion
Topic: Yet Another "What Conversion Kit" Question
Replies: 7
Views: 298

Re: Yet Another "What Conversion Kit" Question

Hmm.. One thing I often tell new folks, don't ruin your favorite bike with a conversion. It makes the bike completely lose its bike feel, when you add 20 pounds or more of battery weight and motor weight to it, using hub motors. Can't get around that one, "bikes" are under 35 pounds. Take a 25-30 po...
by dogman dan
Nov 12 2019 6:32am
Forum: E-Bike General Discussion
Topic: where can I find a steel front suspension fork?
Replies: 17
Views: 668

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

Thanks for the info. But,, we are still wondering what the load on the bike is. I'm trying to ask nice, but do you weigh a lot? Most decent bike forks will easily handle your load, including a cheaper zoom alloy suspension fork. Your initial problem might have been due to something I've done before,...
by dogman dan
Nov 12 2019 6:20am
Forum: Battery Technology
Topic: 18s vs 20s lipo pack build decisions
Replies: 13
Views: 308

Re: 18s vs 20s lipo pack build decisions

Ahh, pit bike I'd be tempted to run it on 24s. :twisted: Those are designed for about 40 mph, or more. I replied thinking it was a bicycle, using typical bike hub motors. However, depending on the motor you use, it's quite possible to get 40 mph from a 12s pack. Just depends on the volts and the amp...
by dogman dan
Nov 12 2019 6:10am
Forum: Battery Technology
Topic: Can I change this lithium battery charger plug?
Replies: 2
Views: 105

Re: Can I change this lithium battery charger plug?

US charger is 110v ac. Correct charger is 220v AC input. Chances are the US charger will not like 220. Sometimes there is a 110 or 220 switch. If so, flip it to 220, and replace the plug, making sure the polarity is right.
by dogman dan
Nov 11 2019 8:15am
Forum: E-Bike General Discussion
Topic: Why not comfort bikes?
Replies: 87
Views: 2563

Re: Why not comfort bikes?

Comfort has many definitions depending on the user. My problem with bents is that I need to stand on the pedals some, or my lower back tends to suffer. I do like my bent, but about 4 miles on it is my limit, then the back starts to pinch a nerve. I cant really sit on a saddle very long, I stand on t...
by dogman dan
Nov 11 2019 8:04am
Forum: E-Bike General Discussion
Topic: Frame Bracing a Folding Bike
Replies: 4
Views: 138

Re: Frame Bracing a Folding Bike

The top tube of the typical frame is under compression when you load it. I have seen cable for the down tube, but not the top tube, which is not under tension load when riding.
by dogman dan
Nov 11 2019 7:54am
Forum: E-Bike General Discussion
Topic: where can I find a steel front suspension fork?
Replies: 17
Views: 668

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

Not sure what you mean by the loads you put on it. Please elaborate what you need. I browsed all your past posts, and see that you use your bike hard enough to break stuff. But saw nothing that seemed likely to have a picture of the broken bike, or why you need so much strength. Steel forks are only...
by dogman dan
Nov 11 2019 7:36am
Forum: Battery Technology
Topic: 18s vs 20s lipo pack build decisions
Replies: 13
Views: 308

Re: 18s vs 20s lipo pack build decisions

3 6s would be much simpler than 5 4s. But sometimes how the bundle is shaped matters too, for carrying it. Re the extra speed of 20s, consider the bike itself. If it starts to high speed wobble at 35 mph, then you don't exactly need 40 mph. Depending on how you carry the motor, battery, and any carg...
by dogman dan
Nov 09 2019 8:46am
Forum: E-Bike General Discussion
Topic: Fat Tire E bike Conversion
Replies: 10
Views: 902

Re: Fat Tire E bike Conversion

Lots of people overinflate fat tires, losing much of the benefit, because it is hard to pedal a tire with less than 10 psi in it.

It might be the thing to do to overinflate, if you ride dry pavement with a fat bike. But unless just going to the sand or the snow, why do that?
by dogman dan
Nov 09 2019 8:43am
Forum: E-Bike General Discussion
Topic: Getting amazing range with BBSHD or faulty display?
Replies: 16
Views: 340

Re: Getting amazing range with BBSHD or faulty display?

Wattmeter of some kind the best thing. When I did more touring, a cycle analyst was crucial. I would watch my watthours per mile, and have a magic number in mind to make it 80 miles. That number would go up when going up a mountain, but return to the target after riding down the other side. But best...
by dogman dan
Nov 09 2019 8:35am
Forum: E-Bike General Discussion
Topic: New 1000w Geared hub MXUS XFC19
Replies: 22
Views: 578

Re: New 1000w Geared hub MXUS XFC19

Still cool to see a geared motor with a bit wider magnets, and more copper. Bear in mind though, you punish any gear motor the way we like to punish DD's, it can't shed the heat very good. So once you get it nice and hot, it will roast those halls at least. But even so, more magnet and copper should...