Search found 4771 matches

by MadRhino
Dec 12, 2017 7:25 pm
Forum: E-Bike General Discussion
Topic: personal bitch, voltage meter
Replies: 11
Views: 348

Re: personal bitch, voltage meter

Found this one 12 to 100v with extra switch. Image
by MadRhino
Dec 12, 2017 7:17 pm
Forum: E-Bike General Discussion
Topic: Freewheel Maintenance
Replies: 16
Views: 236

Re: Freewheel Maintenance

As soon as you build a hub motor bike with too much speed to pedal, the freewheel bearings are spinning most of the time, and heated by the motor contact. Freewheel failures are more frequent and it is even worse riding dirt. A good freewheel is not luxury then, when you get tired taking them off. A...
by MadRhino
Dec 12, 2017 3:11 am
Forum: E-Bike General Discussion
Topic: Got my butt kicked today
Replies: 8
Views: 207

Re: Got my butt kicked today

I’d say of course, wear a helmet if you are head prone in crashes. Yet tire studs might be a better investment for your bones in general. Even with studs, ice riding does require mastering a full set of skills. I kind of like taking a slide in the winter, for I never really hurt myself, nor the bike...
by MadRhino
Dec 12, 2017 2:56 am
Forum: E-Bike General Discussion
Topic: Freewheel Maintenance
Replies: 16
Views: 236

Re: Freewheel Maintenance

Most freewheels that I have are White ind. single. Very easy to service.
by MadRhino
Dec 11, 2017 4:24 am
Forum: E-Bike General Discussion
Topic: Frames from alibaba?
Replies: 9
Views: 219

Re: Frames from alibaba?

If you take the money out of your lottery tickets budget, I’d say chances are better. Buying from Alibaba or Aliexpress, insist on making payment with a credit card that has online purchase protection insurance. Paypal is not bad, but credit cards are much faster to solve a situation. This simple pr...
by MadRhino
Dec 10, 2017 6:09 am
Forum: E-Bike General Discussion
Topic: Rim stronger than the sunringle MTX39?
Replies: 14
Views: 293

Re: Rim stronger than the sunringle MTX39?

True but, MTB riders are many to spend 10k$ a year, just like roadies are many to spend 2000$ on a wheel set.

Business is like that. You can make 1$ with 1 million customers, or you can make 1000$ with 1000 customers.
by MadRhino
Dec 10, 2017 1:09 am
Forum: E-Bike General Discussion
Topic: Is this torque arm configuration ok?
Replies: 4
Views: 188

Re: Is this torque arm configuration ok?

It will do for a low power ebike, but don’t go feeding high power before making proper torque plates or strong dropouts.
by MadRhino
Dec 09, 2017 9:44 pm
Forum: E-Bike General Discussion
Topic: Rim stronger than the sunringle MTX39?
Replies: 14
Views: 293

Re: Rim stronger than the sunringle MTX39?

Yep, if they ever make it 36h and the sizes we need. That is 1000$, lifetime guarantee.
by MadRhino
Dec 09, 2017 9:38 pm
Forum: E-Bike General Discussion
Topic: Freewheel Maintenance
Replies: 16
Views: 236

Re: Freewheel Maintenance

Most freewheels are made with sealed bearings and can’t really be serviced. When you start needing flushing them with lubricant spray, it is usually because they soon need replacement. Freewheels that are serviceable can be opened with a spanner, to access the bearing crown. With those, you can clea...
by MadRhino
Dec 09, 2017 5:00 pm
Forum: E-Bike General Discussion
Topic: Rim stronger than the sunringle MTX39?
Replies: 14
Views: 293

Re: Rim stronger than the sunringle MTX39?

The 729 is very hard alu grade, hard to bend, easy to crack.
by MadRhino
Dec 09, 2017 12:38 am
Forum: E-Bike General Discussion
Topic: What sort of connectors do you use on brake levers and throttles?
Replies: 6
Views: 110

Re: What sort of connectors do you use on brake levers and throttles?

I use the standard molex connectors. Filled with silicon for winterizing.
by MadRhino
Dec 06, 2017 9:53 pm
Forum: E-Bike General Discussion
Topic: Rim stronger than the sunringle MTX39?
Replies: 14
Views: 293

Re: Rim stronger than the sunringle MTX39?

Man, I've been staring blankly at this computer screen for the last 3 minutes thinking "huh?" What kind of epic story have you got that goes along with an MTX39 not being a stout enough wheel? I know what kind of epic stories my MTX has survived... I have not used a Mavic double track, but my Monst...
by MadRhino
Dec 06, 2017 6:31 pm
Forum: E-Bike General Discussion
Topic: Rim stronger than the sunringle MTX39?
Replies: 14
Views: 293

Re: Rim stronger than the sunringle MTX39?

Stronger rims are many, but not so easy to find anymore for a 26’’. Check for a Mavic Double Track. Heavier and bigger than MTX 39. One of my best for hard trail riding. Longer lasting since it is big and NOT hard treated, so you can re-shape and keep it going, until it’s really ugly with the scars ...
by MadRhino
Dec 06, 2017 12:19 pm
Forum: E-Bike General Discussion
Topic: Visually distinguishing screw-on freewheels from "cassette freewheels"?
Replies: 19
Views: 326

Re: Visually distinguishing screw-on freewheels from "cassette freewheels"?

When you ride with a motor, you will not use so many gears anymore. The more the power and speed of the bike, the less you need the gears. Then, hub motors are hard on freewheels. I mean, it does freewheel more often and much faster, and also gets heat shedding off the motor. For those reasons I buy...
by MadRhino
Dec 05, 2017 11:40 pm
Forum: E-Bike General Discussion
Topic: Run motor with insufficient amp batteries damaging?
Replies: 12
Views: 244

Re: Run motor with insufficient amp batteries damaging?

Exactly. It will do with smaller starters, but the 200A will trip the BMS. Even the 100A starters can pull much more with a detuned engine, or sub zero temperatures.

It is easy to build a battery that is up to the task, the other reliable solution would be to gear down the starter.
by MadRhino
Dec 05, 2017 9:39 pm
Forum: E-Bike General Discussion
Topic: Visually distinguishing screw-on freewheels from "cassette freewheels"?
Replies: 19
Views: 326

Re: Visually distinguishing screw-on freewheels from "cassette freewheels"?

It is a most common Shimano freewheel.
It’s been called a cassette by mistake in this add.

You might not find a freewheel with a 11t cog, but it can be done. Most would use a larger chain ring instead.
by MadRhino
Dec 05, 2017 7:18 pm
Forum: E-Bike General Discussion
Topic: Visually distinguishing screw-on freewheels from "cassette freewheels"?
Replies: 19
Views: 326

Re: Visually distinguishing screw-on freewheels from "cassette freewheels"?

Even if you can’t see the thread inside the freewheel, you can see that the spline is short and has no free hub cassette mount insered into it. The splined part in a freewheel, is only to insert a tool to unscrew the whole freewheel assembly. For this reason it is locked on the freewheel, while the ...
by MadRhino
Dec 05, 2017 4:41 pm
Forum: E-Bike General Discussion
Topic: Run motor with insufficient amp batteries damaging?
Replies: 12
Views: 244

Re: Run motor with insufficient amp batteries damaging?

what kind of current limiting device would be good here, while being reliable and keeping cost minimal? What is your application? Sounds like you're not using a controller, so is this just a replacement for the lead-acid battery in a normal gasoline motorcycle? Correct! I want to use this as a lear...
by MadRhino
Dec 05, 2017 12:55 am
Forum: E-Bike General Discussion
Topic: Most powerful rear hub motor for 135mm MTB frame?
Replies: 14
Views: 583

Re: Most powerful rear hub motor for 135mm MTB frame?

With big motors, you have to make torque plates or custom dropouts anyway.

I’d say most big motors can be fitted pretty easy.
by MadRhino
Dec 04, 2017 11:59 pm
Forum: E-Bike General Discussion
Topic: Another Seat Rail Bites The Dust
Replies: 16
Views: 423

Re: Another Seat Rail Bites The Dust

That'll surely hurt! How'd you explain it all, not only to the hot er nurse, but your best pals. Fine craft saddle, but it is looking like it’s gonna bite your balls when you hit a pothole. :mrgreen: You just tell how you had to find another pothole, to free your balls off the mad saddle. :twisted:
by MadRhino
Dec 04, 2017 10:42 pm
Forum: E-Bike General Discussion
Topic: Another Seat Rail Bites The Dust
Replies: 16
Views: 423

Re: Another Seat Rail Bites The Dust

Fine craft saddle, but it is looking like it’s gonna bite your balls when you hit a pothole. :mrgreen:
by MadRhino
Dec 03, 2017 10:26 am
Forum: E-Bike General Discussion
Topic: Reliable 4 season car replacement practicalities
Replies: 16
Views: 382

Re: Reliable 4 season car replacement practicalities

Snowmobile clothings are heated already, but I never plug it. Freezing rain here, is a warm day. This morning was -1 and I was riding with open jacket. Winter has not really started yet, and I still ride wearing leathers. On a trike IMO, 24’’ wheels are a must in the snow. Mud tires at least, studde...
by MadRhino
Dec 03, 2017 5:30 am
Forum: E-Bike General Discussion
Topic: iMax B8+ Balance Charger Magical Smoke
Replies: 1
Views: 83

Re: iMax B8+ Balance Charger Magical Smoke

The Imax 8b has the option to use an external resistance for discharge. Have you tried?
by MadRhino
Dec 03, 2017 1:40 am
Forum: E-Bike General Discussion
Topic: Reliable 4 season car replacement practicalities
Replies: 16
Views: 382

Re: Reliable 4 season car replacement practicalities

On a fast ebike, 20-30mile trips take about the same time as a car, while being a lot more fun IMHO. In nice weather yes. Winter on the north-east coast is very cold, often with bad road conditions like snow, slush, ice. 20 miles on a fast bike at -15 is not fun for everyone, and a hard journey for...
by MadRhino
Dec 02, 2017 10:30 pm
Forum: E-Bike General Discussion
Topic: Winter Projects ... ?
Replies: 14
Views: 436

Re: Winter Projects ... ?

After preparing my commuter for the winter last week when we had the first snow, I have found myself with nothing else to do on my bikes. Both dirt and commuter bikes are perfect. I have 3 frames ready, and enough components to build 2, but no need for any. So I guess all this will sleep another yea...