Search found 159 matches

by cerewa
Mar 20 2008 11:52pm
Forum: E-Bike General Discussion
Topic: Legality of child seats; trailers; sidewalks- with ebikes
Replies: 10
Views: 1086

Re: Legality of child seats; trailers with powered bikes

could you help me and indicate what states and statutes specify where bikes are legal on sidewalks, but ebikes are not? Look for statutes that say "legal e-bikes are considered bicycles and have the same rights and responsibilities." Usually right after that, the statute says something about e-bike...
by cerewa
Mar 17 2008 10:01pm
Forum: E-Bike General Discussion
Topic: eBay ebike kit question
Replies: 3
Views: 698

Re: eBay ebike kit question

he is a reseller who obtains his product from the people of http://www.cyclone-tw.com ....for the same kit at a cheaper price, buy from them.

I bought my motor from them and it's great. :)
by cerewa
Mar 17 2008 8:37pm
Forum: E-Vehicles General Discussion
Topic: Magnetic Power Bicycle
Replies: 15
Views: 3334

Re: Magnetic Power Bicycle

For those that think that putting magnets in the rim to be pulled on by electromagnets in the fork would work well...

your rim would attract nails, wire, nuts, and all sorts of other debris from the road.

Magnets in fork, pulled on by electromagnets in rim might be better.
by cerewa
Mar 17 2008 5:15pm
Forum: Battery Technology
Topic: Duct Tape E-Bay Lifepo4s???
Replies: 1038
Views: 110427

Re: Duct Tape E-Bay LiFePO4s???

has anyone got experience with missbattery at ebay? Does she deliver? If so please let us know your experience with missbattery. Missbattery on Ebay is a salesperson for YESA ( http://www.yesa.com.hk ). I bought my battery from YESA/missbattery on e-bay and I'm very happy with it. Shipping was prom...
by cerewa
Mar 16 2008 10:15am
Forum: E-Bike General Discussion
Topic: Dual hub motor (F&R) full suspension MTB
Replies: 48
Views: 6438

Re: Dual hub motor (F&R) full suspension MTB

the version that he made uses a southpaw freewheel with a 30mm threaded collar attached to the motor on the same side as the regular spyder gears and he modified the spyder and RHS crank arm so there is a freewheel between them. that way the cranks can freewheel while the motor drives the rear gear...
by cerewa
Mar 13 2008 11:18am
Forum: E-Bike General Discussion
Topic: Light weight forks and frame/suspension parts
Replies: 7
Views: 1096

Re: Light weight forks and frame/suspension parts

One of the nice things about e-bikes is that you can make up for having a heavy frame (and other heavy stuff) by just using more power instead of by buying thousands of dollars worth of racer-oriented bike equipment. That said, if you're looking for a frame that is light and strong, you'd do well to...
by cerewa
Mar 10 2008 3:08pm
Forum: E-Bike General Discussion
Topic: Acceptable tire width for given rim inner width?
Replies: 6
Views: 1033

Re: Acceptable tire width for given rim inner width?

re: "what are the best non E bike forums" - check out http://www.bikeforums.net ... it's a great bicycle forum site, and it's also the biggest/most active that I am aware of. re: "what tires with what rim?" I have seen a couple of those tables saying that such and such rim and tire combination are a...
by cerewa
Mar 09 2008 2:18pm
Forum: E-Bike General Discussion
Topic: Dual hub motor (F&R) full suspension MTB
Replies: 48
Views: 6438

Re: Dual hub motor (F&R) full suspension MTB

how loud is the planetary-gearbox at the cyclone ?
In general, if you are within 50 or 75 feet of a moving car you won't be able to hear the cyclone gearbox noise. If you're all by yourself, it's audible but easy to ignore.
by cerewa
Mar 07 2008 7:41pm
Forum: E-Bike General Discussion
Topic: Dual hub motor (F&R) full suspension MTB
Replies: 48
Views: 6438

Re: Dual hub motor (F&R) full suspension MTB

Stokemonkey sales are on hold until further notice. (according to http://cleverchimp.com/ordering ) However, most of the stokemonkey's advantages can be had by buying a cyclone ebike kit instead. Not a hubmotor, but if it's not being used in a hub the motor doesn't need to be a "hubmotor" i.e. a mo...
by cerewa
Mar 03 2008 12:03pm
Forum: E-Bike General Discussion
Topic: Dual hub motor (F&R) full suspension MTB
Replies: 48
Views: 6438

Re: Dual hub motor (F&R) full suspension MTB

The trail has some steep sections that can be muddy and slick which would limit how much power could be sent through a single wheel. You want to match the amount of power each wheel has to the amount of weight on it. Some really steep trails tend to put at least 75% of the weight on the rear wheel ...
by cerewa
Mar 03 2008 11:50am
Forum: E-Bike General Discussion
Topic: which to buy cyclone or currie
Replies: 4
Views: 863

Re: which to buy cyclone or currie

I bought a cyclone motor. I broke it by riding in the rain, (actually the problem was riding after storing the bike outside in the rain) and I went ahead and replaced the motor/controller part of the kit for $208. The only waterproofing problem the cyclone motor has is where the wires enter the moto...
by cerewa
Mar 03 2008 11:28am
Forum: E-Bike Technical
Topic: Superbike ?
Replies: 29
Views: 3420

Re: Superbike ?

HMMMM...some interesting options ! To clarify a few issues..it seems at 25-35 mph peddle assist is of no benefit and there are many options to reach that speed. The range goal of greater than 100 miles at sustained speed is going to require a lot of battery power which translates to mass and weight...
by cerewa
Feb 20 2008 2:08pm
Forum: E-Bike General Discussion
Topic: Financing an E-Bike?
Replies: 56
Views: 5413

Re: Financing an E-Bike?

That would mean that it doesn't always get to operate at the rpm at which it is most efficient. It can't take advantage of the rider's ability to shift gears. All modern train engines have singlespeed electric motors powering the wheels. Using a singlespeed electric system on a bike or train leaves...
by cerewa
Feb 20 2008 1:03pm
Forum: E-Vehicles General Discussion
Topic: apparently, Biofuels aren't the answer
Replies: 60
Views: 3990

Re: apparently, Biofuels aren't the answer

"Unfortunately, the current vogue for biofuels is driven by people's desire to believe that they don't have to modify their behaviour-that they can have their cake, eat it, and burn it in the gas tank. Dispelling this foolish and dangerous notion must be our first priority." This is why, when push ...
by cerewa
Dec 21 2007 8:13pm
Forum: E-Bike Technical
Topic: controller water damage -- oh no!! (cyclone motor)
Replies: 19
Views: 3151

Re: controller water damage -- oh no!! (cyclone motor)

like rkosiorek speculated, I did indeed mount the motor with the wires running out the top. Using my soldering iron, I heated up the solder holding the temp sensor wires on, and pulled them free. This, of course, makes it easy to see the inside of the motor. I'm now thinking that I messed up one or ...
by cerewa
Dec 17 2007 8:24am
Forum: E-Bike Technical
Topic: Smaller Front Wheel?
Replies: 3
Views: 723

see some bikes with smaller wheels... besides any gearing issues is there any advantage to dropping the front from, say, 26" to 24" (I'd use a front hub motor)? Just don't take a 26"-wheel bike with rim brakes and install a 24" front wheel. Your rim brakes won't work, and every e-bike ought to have...
by cerewa
Dec 14 2007 12:30pm
Forum: E-Bike Technical
Topic: whats the Peukert like on NiMH, is it worth paralleling ?
Replies: 11
Views: 1715

so then literally all you would need would be a bulb and a diode. note: do not leave out the diode ;) I noticed that in Post#1, monster mentions charging off the wall outlets but doesn't mention using a diode. I'm not sure what would happen trying to charge a battery with A/C current, but I'm sure ...
by cerewa
Dec 14 2007 12:22pm
Forum: Battery Technology
Topic: 6 Brand New Dewalt packs...
Replies: 18
Views: 2100

yeah, can I have some?
by cerewa
Dec 14 2007 8:52am
Forum: E-Bike General Discussion
Topic: Turn Your Mountain Bike into a Snowmobile
Replies: 15
Views: 5088

if you look at the wheel, it seems to be a one piece rim-spoke-hub combination made mostly of plastic so you wouldn't be able to just lace in a hubmotor to the rim. I've always thought that the best way to make a snow-bike would be to use 12" to 18" tires... you might even be able to use truck tire ...
by cerewa
Dec 14 2007 8:35am
Forum: E-Bike General Discussion
Topic: Building A123 cells into parallel modules
Replies: 4
Views: 1151

A1234LIFE-- your plan sounds okay. I'm wondering if you are aware of the range you'll get with that many A123 cells. If you use them with reasonable efficiency (as in, don't use the motor at its least efficient rpm range, ride at close to normal bicycle speeds) you'll be able to get about 40 miles p...
by cerewa
Dec 09 2007 4:56pm
Forum: Battery Technology
Topic: Charge your electric car in .... 10 minutes!
Replies: 12
Views: 1754

It gets trickier if you're an emergency services person... how you gonna know if a crashed car's chassis is packin 500V while there's somebody stuck inside? :lol: just as dangerous as a crashed car that was powered by a volatile liquid with high energy density! One reason for me to stick with a 24V...
by cerewa
Dec 09 2007 4:41pm
Forum: Battery Technology
Topic: ----How do you test your battery----
Replies: 6
Views: 990

20kw would heat up your whole house!
Weather like today, 40 degrees F outside and my house can be heated with 1.5kw

:D

(okay, i'll admit it, it's just a 1BR apartment)
by cerewa
Dec 09 2007 4:22pm
Forum: Battery Technology
Topic: Circuit breakers/ battery overcurrent protection
Replies: 13
Views: 1574

Circuit breakers/ battery overcurrent protection

I bought a battery from Yesa with a current rating of 1C = 10A = about 240W. Their website says it is suitable for 350W motors. I was thinking about how to come up with a cheap and easy way to know how much current my motor was drawing or to avoid going over about 15A. I popped over to ebay. At the ...
by cerewa
Dec 08 2007 1:27am
Forum: E-Bike Technical
Topic: controller water damage -- oh no!! (cyclone motor)
Replies: 19
Views: 3151

Good news. Paco from cyclone-tw says I can buy a replacement controller for $50 USD, shipped.

In case you're counting, that's cheaper than two tanks of gas. While the e-bike is out of commission, I use about a $30 tank each week in gas :(
by cerewa
Dec 07 2007 10:18am
Forum: E-Bike Technical
Topic: controller water damage -- oh no!! (cyclone motor)
Replies: 19
Views: 3151

Can you tell if the hall sensors are mounted directly on the controller board? They are, unless I am mistaken about which components actually are the hall sensors. Several (6?) little dark grey rectangles mounted in a part-circle configuration=hall sensors? Will removing all the FET screws make it ...