Search found 7276 matches

by MadRhino
Jun 05 2021 1:43am
Forum: EBike General Discussion
Topic: Why do I now ride my ebike with light motorcycle gear?
Replies: 59
Views: 1200

Re: Why do I now ride my ebike with light motorcycle gear?

TDB wrote:
Jun 04 2021 10:17pm
I wonder how the anti helmet faction would feel about a small child riding without a helmet. Responsible or irresponsible parents?
There is no anti helmet faction.
Helmets are like condoms.
There are many who don’t wear any, but none of them ever told others not to wear one.
by MadRhino
Jun 04 2021 5:11am
Forum: EBike General Discussion
Topic: Why do I now ride my ebike with light motorcycle gear?
Replies: 59
Views: 1200

Re: Why do I now ride my ebike with light motorcycle gear?

Protection gear can’t save a distracted rider. The first rule of riding safety is consciousness. The second is riding skills training. Then only, comes the basic protections: Riding gloves, glasses, boots and helmet. After horses and bulls, motorcycles of all kind, I find ebikes pretty safe even whe...
by MadRhino
Jun 01 2021 8:42am
Forum: EBike General Discussion
Topic: What's causing a false throttle voltage? sabvoton 72150
Replies: 1
Views: 92

Re: What's causing a false throttle voltage? sabvoton 72150

Spinning the wheel by hand should not show any throttle voltage IMO. Normally, the throttle need to be receiving current from the controller 5v circuit and to be manually actioned to produce some output.
by MadRhino
May 27 2021 3:49pm
Forum: EBike General Discussion
Topic: Big controller small motor who wins
Replies: 6
Views: 349

Re: Big controller small motor who wins

Cooling holes are not a big help for heat dissipation, but it is a cheap and easy way to help delaying the overheating. Still, after you feed a motor to saturation point, frying it is a matter of seconds, holes or not. Bigger motors can be fed higher power, because their total mass does shed the hea...
by MadRhino
May 25 2021 10:20pm
Forum: EBike General Discussion
Topic: Where is a good place to get coil springs for upgrading shocks?
Replies: 1
Views: 107

Re: Where is a good place to get coil springs for upgrading shocks?

Well, we normally don’t shop them by color. I find them used on pinkbike sometimes. Or, bike shops that are near the bike parks usually have a stock from replacing them when they tune suspensions. Buying new, I like Cane Creek, Rockshox, fox... any of the major suspension brands. Springs are identif...
by MadRhino
May 24 2021 11:53pm
Forum: EBike General Discussion
Topic: what rim brake is this?
Replies: 9
Views: 182

Re: what rim brake is this?

This one is custom made, but the design is old and had been used in board track racing.
by MadRhino
May 24 2021 8:05pm
Forum: EBike General Discussion
Topic: Sabvoton 72v 200 vs 96 120a
Replies: 9
Views: 193

Re: Sabvoton 72v 200 vs 96 120a

This is more about the speed that you ride, than the acceleration that you want. You can feed much more than 150A with 18s lipo, when they are low resistance quality lipo of course. So you can have the acceleration without having to build a bike that is too fast for your need.
by MadRhino
May 24 2021 4:23pm
Forum: EBike General Discussion
Topic: 5 ebikes, observations from riding them.
Replies: 8
Views: 425

Re: 5 ebikes, observations from riding them.

:D
Yep. Each has his own way to rate a bike.
by MadRhino
May 24 2021 4:02pm
Forum: EBike General Discussion
Topic: Sabvoton 72v 200 vs 96 120a
Replies: 9
Views: 193

Re: Sabvoton 72v 200 vs 96 120a

Mind blown, tinker aborted. Thank you. Looks like I still have a lot of research to do. I was running under the impression that higher voltage is always faster from start to finish. So your saying higher voltage, lower current is better for high speed cruising and lower voltage, higher current bett...
by MadRhino
May 24 2021 10:32am
Forum: EBike General Discussion
Topic: Sabvoton 72v 200 vs 96 120a
Replies: 9
Views: 193

Re: Sabvoton 72v 200 vs 96 120a

Nope. Lower efficiency at low speed because of the higher top speed caused by the higher voltage.

Lesser acceleration because of the lower power fed by the 96v controller.
by MadRhino
May 24 2021 7:45am
Forum: EBike General Discussion
Topic: Sabvoton 72v 200 vs 96 120a
Replies: 9
Views: 193

Re: Sabvoton 72v 200 vs 96 120a

Yep. You will have better top speed, at the cost of lesser acceleration from the start and lower efficiency at low speed. That is of course, if you set and pull the best power out of them both.
by MadRhino
May 24 2021 7:40am
Forum: EBike General Discussion
Topic: Hub motor not fee spinning when phase wires connected
Replies: 3
Views: 119

Re: Hub motor not fee spinning when phase wires connected

Well, explain yourself better.

Battery connected?
Trying to spin it with throttle?
Or just trying to spin it by hand when connected to the controller?

Be clear about what you did and the result.
by MadRhino
May 24 2021 2:32am
Forum: EBike General Discussion
Topic: Will my 80a 72v controller be spoiled if I use a 120v battery
Replies: 5
Views: 176

Re: Will my 80a 72v controller be spoiled if I use a 120v battery

Might as well ask if a 120v lightbulb would fry if you feed it 240v. Mosfets and capacitors in 72v controllers are rated 92v, some are 100v. That is the max full charge battery voltage that you can plug on it. Higher than that, they will fry instantly. Then if you feed it with a 20s or 24s battery, ...
by MadRhino
May 23 2021 5:43am
Forum: EBike General Discussion
Topic: Daymak Florence FT 45km/r top speed.
Replies: 8
Views: 502

Re: Daymak Florence FT 45km/r top speed.

Some search shows that it does about 30kmh out of the box and there is no mention that its top speed is limited in the software. But, some different versions of this trike are available on Amazon, and they might make a faster one for some countries, or for some resellers requirement. Seems that they...
by MadRhino
May 22 2021 7:49pm
Forum: EBike General Discussion
Topic: Daymak Florence FT 45km/r top speed.
Replies: 8
Views: 502

Re: Daymak Florence FT 45km/r top speed.

You might have to run a higher voltage for that, or replace the motor with a faster winding. So you’d have to reconfigure or buy batteries to make higher voltage, or lacing a faster motor in your wheel. The controller program alone won’t get you that fast, but if it has a top speed lock in the softw...
by MadRhino
May 22 2021 1:22am
Forum: EBike General Discussion
Topic: Safe to test hub motor with a battery charger?
Replies: 5
Views: 346

Re: Safe to test hub motor with a battery charger?

That won’t do. I said unloaded. 50 km of wire is a serious load, in all meanings of the term.
by MadRhino
May 21 2021 11:09pm
Forum: EBike General Discussion
Topic: Safe to test hub motor with a battery charger?
Replies: 5
Views: 346

Re: Safe to test hub motor with a battery charger?

Yep. Any power supply would do, as long as it is for spinning the motor unloaded.
by MadRhino
May 21 2021 8:08pm
Forum: EBike General Discussion
Topic: Big controller small motor who wins
Replies: 6
Views: 349

Re: Big controller small motor who wins

Phase connections fail, very often damage the controller. Phase wires and connectors need to be of proper size and quality.
by MadRhino
May 20 2021 9:56pm
Forum: EBike General Discussion
Topic: Issue with the rear shock on my Recumbent - new setup
Replies: 14
Views: 384

Re: Issue with the rear shock on my Recumbent - new setup

Adding 20 inches to the frame does require a much stronger spring weight, because you had created a powerful lever effect on the suspension. I would add at least 100 lbs to your actual spring weight, meaning if you have a 300 lbs now, it should be replaced with a 400, maybe 450.
by MadRhino
May 19 2021 7:52pm
Forum: EBike General Discussion
Topic: Issue with the rear shock on my Recumbent - new setup
Replies: 14
Views: 384

Re: Issue with the rear shock on my Recumbent - new setup

Agreed with the above. Still, the shock might be short because the rider did mount it on a low position among the mounting holes on the frame, because he feels more comfortable seated low. Then the shock should be set to a shorter travel, and eventually a harder spring. Even bottoming a spring shock...
by MadRhino
May 19 2021 12:41pm
Forum: EBike General Discussion
Topic: Issue with the rear shock on my Recumbent - new setup
Replies: 14
Views: 384

Re: Issue with the rear shock on my Recumbent - new setup

I second the airshock suggestion. They are adjustable and have much better dampening, so when you hit a bump it doesn't launch you. The air shock is also is safer in the corners. Warren Easier to tune and light weight, but shorter lifespan and a nightmare to rebuild. They are not safer nor better, ...
by MadRhino
May 18 2021 4:28pm
Forum: EBike General Discussion
Topic: E-bike mid-drive motors hardly outperforms hub motors
Replies: 93
Views: 2809

Re: E-bike mid-drive motors hardly outperforms hub motors

Yep. BB drives had brought up a very neat and stealth looks, and bike manufacturers had built vey good light weight sporting ebikes with them, but they are also made to tie the users to their service dept. Still, riders whom riding style and terrain do require mid drives can build their own with sol...
by MadRhino
May 18 2021 4:04pm
Forum: EBike General Discussion
Topic: Issue with the rear shock on my Recumbent - new setup
Replies: 14
Views: 384

Re: Issue with the rear shock on my Recumbent - new setup

It is basic maintenance to clean, lube and tune suspension components. Hiding them won’t make you more likely to clean and lube. :D