Search found 6914 matches

by Drunkskunk
Jan 22, 2018 8:02 pm
Forum: E-Bike General Discussion
Topic: Challenge with brakes
Replies: 20
Views: 323

Re: Challenge with brakes

I'll never be a fan of roller brakes, but it would work well and be relatively easy to put on that bike with a hub change. Adding the rim brakes could work, but the rim would need to be suitable for rim brakes. if it isn't, the brakes would crush or crack the rim. A harder but better alternative mig...
by Drunkskunk
Jan 22, 2018 5:56 pm
Forum: E-Bike General Discussion
Topic: Tandem Duel Electric Wheels
Replies: 9
Views: 105

Re: Tandem Duel Electric Wheels

Really nice bike. 250w isn't going to be enough to help move 2 people very well. for one person, it would still be fairly under powered but usable. With 2 motors, it should work, but 2 people and just one 250w motor may over stress the motor and damage the gears. You may want to avoid standing start...
by Drunkskunk
Jan 15, 2018 8:10 pm
Forum: E-Bike General Discussion
Topic: opinions about this 500watt model & hill performance
Replies: 7
Views: 217

Re: opinions about this 500watt model & hill performance

unless your wife is under 100 pounds, i wouldn't expect a 500w geared hub motor to survive climbing a 16% hill. 8fun is Bafang's western name brand. Bafang make a good motor, and if you modified the controller for more power, it might actually make it up the hill. but i doubt the motor would survive...
by Drunkskunk
Jan 08, 2018 8:54 pm
Forum: E-Bike General Discussion
Topic: First E-bike Conversion advice
Replies: 20
Views: 580

Re: First E-bike Conversion advice

Skip those 350w motors. They aren't robust enough to survive off road. a 500w Bafang or MAC is what you need. And if cost is an issue, the direct drive hubs are still a good option. Heavy, but bullet proof with only 1 moving part. They make a great motor to get started out with. They have some advan...
by Drunkskunk
Jan 04, 2018 3:45 pm
Forum: E-Bike Technical
Topic: Best Cushiony Rear Shock for Ebike
Replies: 16
Views: 515

Re: Best Cushiony Rear Shock for Ebike

need more info on what you have. What kind of bike is this going on? How do you have the rack attached? How much sag are you running in your suspension? What size and how much pressure are you running in your tires? Short arm, single pivot, linear motion suspensions are very good at soaking up very ...
by Drunkskunk
Jan 01, 2018 5:42 pm
Forum: E-Bike General Discussion
Topic: New DIY project (Stealth Bomber-ish clone), advice on parts - starting with wheels/tires
Replies: 3
Views: 246

Re: New DIY project (Stealth Bomber-ish clone), advice on parts - starting with wheels/tires

Looks like a good combo so far. Ive been curious how those Ranger 3.0 work out. Since you're building up the bike, you probably should go for a wider rim. for a 3" tire, I'd want a 45mm rim (39mm inside width). 32 hole for the front will be easy to find. for the rear, you're going to have a fun sear...
by Drunkskunk
Dec 28, 2017 4:57 pm
Forum: General Discussion
Topic: brushless Dc motor controllers
Replies: 5
Views: 225

Re: brushless Dc motor controllers

A motor's speed is based on the voltage supplied. And the speed is basically linear. If 10 volts gives you 10mph, 20 volts will give you 20mph. 100 volts will give you 100mph.... as long as you also have enough amps to cover the wattage needed to go that speed. If you take the battery voltage you ha...
by Drunkskunk
Dec 28, 2017 2:53 pm
Forum: E-Bike General Discussion
Topic: planning new ebike build - several questions
Replies: 11
Views: 574

Re: planning new ebike build - several questions

looks like you've picked a good overkill motor for what you want to do. combining that with a ~52v, 40A controller will give you 2kw of power, a bit more power than a moped in a vehicle that weighs 100lbs less. It should give you all the performance you need. An 18FET controller is what I use on my ...
by Drunkskunk
Dec 27, 2017 5:15 pm
Forum: General Discussion
Topic: Anyone get any ~smokin'~ Boxing Week deals!?
Replies: 2
Views: 148

Re: Anyone get any ~smokin'~ Boxing Week deals!?

The Finance Purge of 2017. By luck, I'm 5 miles from the closest shopping mall, so I'm outside of the fallout zone from this Holiday shopping season. I hear it's worse closer in. A few unlucky neighbors had family that were at ground zero when the the shopping season started on Black Friday. Their f...
by Drunkskunk
Dec 27, 2017 4:58 pm
Forum: E-Bike General Discussion
Topic: TS eBall 29”er
Replies: 10
Views: 510

Re: TS eBall 29”er

Two Girvin forked bikes in the same thread? Now that's a rare sight.
That's a good looking bike. I'm curious how that TS compares to the BBS01
by Drunkskunk
Dec 22, 2017 5:54 pm
Forum: E-Bike General Discussion
Topic: KMX Franken Trike 12-18kw Build
Replies: 35
Views: 1243

Re: KMX Franken Trike 12-18kw Build

Looks like an ambitious project. I'm curious why you plan to go with a Nano instead of something like a Raspberry Pi Zero. Nano can handle one program at a time, but the Pi can run multiple, making it easier to have traction control, and steering angle based proportional torque work together. @Trike...
by Drunkskunk
Dec 14, 2017 2:31 pm
Forum: E-Bike General Discussion
Topic: OpenEbike - open source frame design
Replies: 26
Views: 841

Re: OpenEbike - open source frame design

I can't see those images either.
I tried to go to those images directly and they won't pull up. Since it's linked from a a google user's site, might be a privacy setting?
by Drunkskunk
Dec 11, 2017 2:04 pm
Forum: E-Bike General Discussion
Topic: Freewheel Maintenance
Replies: 19
Views: 558

Re: Freewheel Maintenance

I have no idea what Double D 40 is, but it sounds like the title of a movie I would watch 15 minutes at a time. :twisted: If I can get the freewheel apart, I'll dismantle it, soak it overnight in ATF, and then repack the bearings and pawls with Boat trailer grease. Boat trailer grease can help beari...
by Drunkskunk
Dec 11, 2017 1:04 pm
Forum: General Discussion
Topic: Dirt bike fork on an ebike?
Replies: 14
Views: 356

Re: Dirt bike fork on an ebike?

forks don't have a standard sized steer tube. you will have to adapt depending on what source you use. here's a list someone did of various axle and bearing sizes for Honda's http://www.hondatwins.net/forums/34-tips-tricks/16757-japanese-axle-steer-tube-bearing-sizes-fork-tube-sizes.html The handleb...
by Drunkskunk
Dec 08, 2017 12:52 pm
Forum: General Discussion
Topic: can you help me source this LED?
Replies: 10
Views: 259

Re: can you help me source this LED?

that looks like a version of a standard MCPCB LED mount, similar to what Cree uses. Something like this might be a workable replacement. https://www.ledsupply.com/leds/cree-xlamp-xp-l-high-density-led-star?gclid=CjwKCAiAjanRBRByEiwAKGyjZdc5W1LCrvHlNc387VTHKvhDQpc3CES7VLDmiPku8vC6nibRDccNHBoC70QQAvD_...
by Drunkskunk
Dec 07, 2017 1:43 pm
Forum: Large EV General Discussion
Topic: Industrial Motor gokart build
Replies: 7
Views: 419

Re: Industrial Motor gokart build

Looks like fun. I've had cars with less stout brake rotors.
Had a good laugh at the "Kelly" controller diagram.
by Drunkskunk
Dec 06, 2017 8:29 pm
Forum: E-Bike General Discussion
Topic: Rim stronger than the sunringle MTX39?
Replies: 14
Views: 443

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 and been plenty stout enough for, and most of those ta...
by Drunkskunk
Dec 06, 2017 8:07 pm
Forum: E-Bike General Discussion
Topic: Rescue Motor - Aotema (Wilderness Energy BD-36)
Replies: 22
Views: 933

Re: Rescue Motor - Aotema (Wilderness Energy BD-36)

All of those 1st gen motors are crazy quiet and smooth. They have that slant groove stator that eats some efficiency in trade for silkiness.

I bet that thing would be great in a 20"
by Drunkskunk
Dec 06, 2017 7:47 pm
Forum: General Discussion
Topic: Boost 110v AC to 120v AC or slightly more
Replies: 13
Views: 293

Re: Boost 110v AC to 120v AC or slightly more

While fixing your house voltage is worth the time, Its possible that's not the welder's issue. It sounds like you have a control board issue on that Miller. They are prone to failure, and there are a bunch of trouble shooting videos on Youtube about it. Also, the switch on the gun can start to fail ...
by Drunkskunk
Dec 05, 2017 2:58 pm
Forum: E-Bike General Discussion
Topic: Visually distinguishing screw-on freewheels from "cassette freewheels"?
Replies: 19
Views: 468

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

I snagged this image from one of Zukster's posts https://endless-sphere.com/forums/viewt ... =2&t=54297
This is a CST hub, a freewheel hub just has some threads that stick out 1/2" or so.

Image
by Drunkskunk
Dec 04, 2017 10:31 pm
Forum: E-Bike General Discussion
Topic: Run motor with insufficient amp batteries damaging?
Replies: 12
Views: 347

Re: Run motor with insufficient amp batteries damaging?

If the BMS does it's job, it will shut down the battery at any draw over 100 amps. But it's designed as a safety device, not a means of current control, and i wouldn't rely on it. You should be relying on a controller, not the BMS to handle the current draw.
by Drunkskunk
Dec 04, 2017 7:39 pm
Forum: E-Vehicles General Discussion
Topic: looking for ideal base for electric car conversion
Replies: 35
Views: 1266

Re: looking for ideal base for electric car conversion

izeman wrote:
Nov 28, 2017 2:18 am
at least an austrian car :) nice to see them again.
already did the other thing around. we planted an american 4.2l 6-zyl with automatic transmission into a pinzgauer ;)
Bet that was fun! Was it the Jeep's 4.2?
by Drunkskunk
Dec 04, 2017 6:14 pm
Forum: General Discussion
Topic: Looking for a replacement drive system
Replies: 4
Views: 259

Re: Looking for a replacement drive system

Welcome to the forum. Those integrated Keyde are interesting, and friction drive is going to be quiet, but i wouldn't call it robust. I don't know of any other hub motor in this size range with an internal controller. The only direct replacement is going to be another Integrated Keyde, and they only...
by Drunkskunk
Dec 04, 2017 5:38 pm
Forum: E-Bike General Discussion
Topic: Most powerful rear hub motor for 135mm MTB frame?
Replies: 15
Views: 1011

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

Cromotor is going to be the most powerful at 135mm. But "most powerful", "fastest", and "best" aren't the same thing. Smaller motor might be faster depending on the wind, the aerodynamics, and the riding conditions. One of the big Clytes might be better if you plan to haul weight or are going to be ...