Search found 6002 matches

by MadRhino
Jan 22 2011 8:38pm
Forum: E-Bike General Discussion
Topic: Prodeco Tech- Phantom X ebike
Replies: 42
Views: 10537

Re: Prodeco Tech- Phantom X ebike

It's a nice folder, that has a fair kit of components for street use, but seriously underpowered IMO. You'd need more batteries, and another controller, to improve it's performance and range. First thing to do, is to find the Amp limit of the motor. The size of the phase wire is a good indication, a...
by MadRhino
Jan 22 2011 2:31am
Forum: E-Bike General Discussion
Topic: Surly Pugsley: E-bike possible? Or just crazy?
Replies: 11
Views: 2575

Re: Surly Pugsley: E-bike possible? Or just crazy?

Big wheels are screaming for a Clyte. I'd go for a 5305 and a 72v controller. Gears and clutch would have a hard time, especially if you ride the beast in lose dirt.
by MadRhino
Jan 22 2011 2:17am
Forum: E-Bike General Discussion
Topic: 15s lipo on a 48 volt controller
Replies: 14
Views: 1662

Re: 15s lipo on a 48 volt controller

I also do it all the time. Full charge on a lipo is 4.2 volts per cell. 15s X 4.2v = 63 volts But it is the limit of the capacitors, and those things are built with a +/-10% tolerance, so there is a small risk. Another risk is the LVC, that might be too low, when the controller is not programmable....
by MadRhino
Jan 21 2011 5:40pm
Forum: E-Bike General Discussion
Topic: Please help! Laptop Cells as cheap batteries????
Replies: 29
Views: 2260

Re: Please help! Laptop Cells as cheap batteries????

You need only one good RC charger, I like the I-Charger 208B. You can charge them all in parallel. Later, you might want to buy a SP-320-48 Meanwell to charge them fast at nominal voltage. You should read the thread about Lipo, everything that you have to know is there. http://endless-sphere.com/for...
by MadRhino
Jan 21 2011 4:56pm
Forum: E-Bike General Discussion
Topic: Please help! Laptop Cells as cheap batteries????
Replies: 29
Views: 2260

Re: Please help! Laptop Cells as cheap batteries????

[quote="Ykick" 4qty of those 6S 4900mAh packs will get you 9-10 miles but not much more than that IMO.[/quote] I agree, you want to start with 6 pack min. Lipo don't like being discharged too low, ideally you'd build a batt with 8 of those for 12s4p. That would give you about 50v fresh from the char...
by MadRhino
Jan 21 2011 4:11pm
Forum: E-Bike General Discussion
Topic: Please help! Laptop Cells as cheap batteries????
Replies: 29
Views: 2260

Re: Please help! Laptop Cells as cheap batteries????

Some of those Lipo are good, I let you judge about the price. http://www.madmodels.co.za/CatDsplItem.aspx?CatalogueItemID=1917&CatalogueItemDocumentID=0&DocumentID=0&CatalogueName=&CategoryName=&ItemName=FP%20Evo20%204900mah%206s1p%2022.2v&back=true 6S1P 4900MaH, 2 packs in series, 3 or 4 in paralle...
by MadRhino
Jan 20 2011 11:38pm
Forum: E-Bike General Discussion
Topic: SpiderFire power activate!! Holy smokes! :->
Replies: 1
Views: 326

Re: SpiderFire power activate!! Holy smokes! :->

Hehe, it freezes the cars in town, like deers on a country road :mrgreen: I have one on the hadlebar, to light the mountain trails that I ride often at dark. Sometimes, when I see risky business ahead in town, I put it on to let them know that I'm coming. I use it with 18650 batteries, cause I run t...
by MadRhino
Jan 20 2011 10:46pm
Forum: E-Bike General Discussion
Topic: Nuvinci Hub dishing, why dish at all?
Replies: 19
Views: 1700

Re: Nuvinci Hub dishing, why dish at all?

Fallbrook recomends a "O" or 1 cross only. Bob Single cross is OK when built well, but '0'cross is radial and really too weak for a rear wheel, even a front wheel should not be laced radial with disc brake. In a 700c, I would prefer to lace this hub double cross, but single cross is OK in any small...
by MadRhino
Jan 20 2011 10:19pm
Forum: E-Bike General Discussion
Topic: Please help! Laptop Cells as cheap batteries????
Replies: 29
Views: 2260

Re: Please help! Laptop Cells as cheap batteries????

They have the 18650 2000mAh cells, that may be good to build a pack for Ebike use if their C rate is high enough. They don't specify the C rate, so you'd have to ask for full spec, because those cells are produced in a very wide variety of discharge rate, and you want high C. Then, I can't compare t...
by MadRhino
Jan 20 2011 9:34pm
Forum: E-Bike General Discussion
Topic: Nuvinci Hub dishing, why dish at all?
Replies: 19
Views: 1700

Re: Nuvinci Hub dishing, why dish at all?

Well, I had to dish alot with the Clyte, I don't know about other hubmotors. My setup requires dishing, for I keep the 9 freewheel and use a 2.7in tire that needs to be centered for clearance. Nevertheless, I would dish anyway, if it was only to center the wheel. Offset wheel trails in or out when t...
by MadRhino
Jan 20 2011 9:14pm
Forum: E-Bike General Discussion
Topic: is this a CA plug?
Replies: 6
Views: 607

Re: is this a CA plug?

You can have the direct plug in, order the CALDP. I installed one last weekend, that I ordered with the 200v mod for little extra. It will be set up already for the 9C, mine was, and I had to set it up for my Clyte. It is a very neat display, it lags when very cold, but apart of this I found no trou...
by MadRhino
Jan 20 2011 8:54pm
Forum: E-Bike General Discussion
Topic: Nuvinci Hub dishing, why dish at all?
Replies: 19
Views: 1700

Re: Nuvinci Hub dishing, why dish at all?

A dished wheel does not lose any strenght, within a certain limit of course. On freeride and DH bikes, we jump and drop big and fast, without noticing any difference with a dished wheel. The quality of the rim, the lacing pattern, and the tire pressure, are the main factors that kills a wheel early.
by MadRhino
Jan 20 2011 8:41pm
Forum: E-Bike General Discussion
Topic: Electric Bike for riding on beach on sand
Replies: 54
Views: 7487

Re: Electric Bike for riding on beach on sand

Your new build might want a little more care. The dried salt deposit on suspension is abrasive and is a cause for premature wear of the oil seals. I've had this experience riding in the winter, that leaves deposit from calcium salt used as melting agent on the streets. It wears the brake pads twice ...
by MadRhino
Jan 19 2011 1:16am
Forum: E-Bike General Discussion
Topic: Studded Tires?
Replies: 113
Views: 28184

Re: Studded Tires?

Wow! It looks mad. Lots of batteries too :mrgreen: The front is always a problem in the snow. To use a slimmer tire than the back works better, riding posture has to be adapted and you will notice a difference already, by simply setting the saddle forward. I like the cold cutters cause they are chea...
by MadRhino
Jan 18 2011 11:11pm
Forum: E-Bike General Discussion
Topic: Is it feasible to charge (by solar) a 36-volt SLA?
Replies: 24
Views: 2052

Re: Is it feasible to charge (by solar) a 36-volt SLA?

MikeFairbanks wrote:I suppose you could make a waterwheel. That would be cool if you lived next to a creek or river.
What about a big hamster wheel in the schoolyard, recycling kids energy to charge your bike :idea:
by MadRhino
Jan 18 2011 4:31pm
Forum: E-Bike General Discussion
Topic: 1St ebike done, now onto revision 2 on Kona Stinky frame.
Replies: 28
Views: 2985

Re: Getting ready for my First Ebike project

@wojtek
This Dawg is older than yours, it's alu frame I guess, nevertheless a very good bike to build. Torque arm a must. The hydro brakes levers can be fitted with a switch for the E-brakes, also new controllers can be programmed to have regen 'compression' on throttle release.
by MadRhino
Jan 18 2011 4:09am
Forum: E-Bike General Discussion
Topic: 1St ebike done, now onto revision 2 on Kona Stinky frame.
Replies: 28
Views: 2985

Re: Getting ready for my First Ebike project

I'd definitely go for the stinky, but no way I woud change the geometry of that bike. I've had a dawg and a deelux, both bikes I consider perfect canditates for an electric ride. The reasons why I find your Dawg good for a build: It has good disc brakes It has a strong ridgid frame It handles very w...
by MadRhino
Jan 17 2011 7:21pm
Forum: E-Bike General Discussion
Topic: "Teething Issues"- How Many Teeth?
Replies: 15
Views: 960

Re: "Teething Issues"- How Many Teeth?

I have a 9 11/34t freewheel on a 5304, in a 150mm swingarm. The 11t freewheels can be found at ebike.ca. I have a nice 7 11/34 set too, that they sold me for 28$ if my memory is good. The chain width has to match your freewheel set, meaning wide chains won't fit nice a 9 freewheel and derailer won'...
by MadRhino
Jan 17 2011 4:40pm
Forum: E-Bike General Discussion
Topic: "Teething Issues"- How Many Teeth?
Replies: 15
Views: 960

Re: "Teething Issues"- How Many Teeth?

I have a 9 11/34t freewheel on a 5304, in a 150mm swingarm. The 11t freewheels can be found at ebike.ca. I have a nice 7 11/34 set too, that they sold me for 28$ if my memory is good. The chain width has to match your freewheel set, meaning wide chains won't fit nice a 9 freewheel and derailer won't...
by MadRhino
Jan 17 2011 3:47pm
Forum: E-Bike General Discussion
Topic: Time to lipo
Replies: 17
Views: 1245

Re: Time to lipo

Why would you get the Nano batt? Even the "cheap" Turnigy is 20C constant (rated) and you need a beast of a motor/controller to get anywhere near that load. For the low impedance, meaning less voltage sag, running cooler, higher charge rate, and less power loss under freezing conditions. The higher...
by MadRhino
Jan 14 2011 10:36am
Forum: E-Bike General Discussion
Topic: Building a buying list for two e-bikes, short range
Replies: 7
Views: 623

Re: Building a buying list for two e-bikes, short range

Running a single pack of Lipo makes for a very simple setup. I'd run the balance wires to the handlebar, to mount a cell monitor. The battery enclosure could be made to attach to the water bottle mounts. This kind of setup would be very neat, and with a small geared hub, very stealth too. Not a long...
by MadRhino
Jan 14 2011 10:18am
Forum: E-Bike General Discussion
Topic: Suppliers of Hub Kits - South African Distributor?
Replies: 37
Views: 3079

Re: Suppliers of Hub Kits - South African Distributor?

Recycling Lipo is complicated, for you'd have to find and assemble cells that are well matched, to have a good pack. Unless you have a big supply of the very same used battery, cells will be of a variety of capacity and C rate. If you go for Lipo, Hobby King is the place, and the 5000mah 20C and up ...
by MadRhino
Jan 14 2011 1:34am
Forum: E-Bike General Discussion
Topic: Suppliers of Hub Kits - South African Distributor?
Replies: 37
Views: 3079

Re: Suppliers of Hub Kits - South African Distributor?

Low budget, along with higher prices in your country, makes it difficult to build a quality setup with fair performance. Maybe you should watch the sales section on ES, to find some good prices on some of the items needed. Not really searching deep,I give here some examples, that could make a qualit...
by MadRhino
Jan 13 2011 4:04am
Forum: E-Bike General Discussion
Topic: Call to ban motorised bikes - AUS
Replies: 33
Views: 2506

Re: Call to ban motorised bikes - AUS

The 1000 pound animal is technically a pedestrian, and people writing laws don't know shit :mrgreen: