Search found 5892 matches

by MadRhino
Dec 02 2010 2:34pm
Forum: E-Bike General Discussion
Topic: Not fast enough!
Replies: 19
Views: 992

Re: Not fast enough!

I have the same motor, wheel size, and voltage. My bike does 76Kmph on flat pavement, much slower in the mountain. Still, it's not enough and it does not like climbing. I just received a new controller, will run 100v 50A with it. I plan 120v next spring with a 5306, to have more torque to climb whil...
by MadRhino
Dec 02 2010 5:29am
Forum: E-Bike General Discussion
Topic: What kind of helmet do you use?
Replies: 465
Views: 22707

Re: What kind of helmet do you use?

I have to admit that I don't wear a helmet most of the time. I have a downhill specific helmet, but even in the mountain, I wear it only when I'm gonna try at crazy jumps and race with the kids. Once, when I was coming from a mountain trail and landed very fast on the first paved street, then had to...
by MadRhino
Nov 28 2010 5:05am
Forum: E-Bike General Discussion
Topic: nuvinci hub warranty
Replies: 15
Views: 2270

Re: nuvinci hub warranty

I wish someone develops a hub motor using the Nuvinci system. That would be a very interesting improvement in hub motor technology, no matter the warranty.
by MadRhino
Nov 27 2010 7:19pm
Forum: E-Bike Technical
Topic: My bike failed in the snow, diagnostic?
Replies: 6
Views: 588

Re: My bike failed in the snow, diagnostic?

Everything running as new now. It was the hall signal corrupted by a short due to the infiltration of snow, mud and water in the connectors. I cleaned, then waterproofed all the connectors by taping the joints, and stuffed windshield gum in the back of them, where the wires are exposed. I'll be back...
by MadRhino
Nov 27 2010 2:29pm
Forum: E-Bike Technical
Topic: My bike failed in the snow, diagnostic?
Replies: 6
Views: 588

Re: My bike failed in the snow, diagnostic?

Many thanks! I hope that it is only wet connectors. The motor and controller are Clyte, only running for one month. I would not mind so much about the controller since I have another one coming in the mail from Lyen, built with 4115 mosfets for higher voltage. I believe that I will have to upgrade a...
by MadRhino
Nov 27 2010 1:53pm
Forum: E-Bike Technical
Topic: My bike failed in the snow, diagnostic?
Replies: 6
Views: 588

My bike failed in the snow, diagnostic?

I went in the mountain for a ride in the snow this morning. I was having a lot of fun with it, until the motor started to have hesitations and growling on accelerations. It went worse, up to the point that it was not giving any power and only growling hard when given throttle. Then, when I was stand...
by MadRhino
Nov 25 2010 8:40pm
Forum: E-Bike General Discussion
Topic: Just bought a giant trance x4. Which motor to use???
Replies: 21
Views: 2652

Re: Just bought a giant trance x4. Which motor to use???

Nice bike, and very light frame. I was also preoccupied with the weight, at first. Then, I realized that performance and range are directly weight dependant: If you want power and range, you will be putting a lot of weight, and you lite XC will likely end up around 80 pounds when you are satisfied w...
by MadRhino
Nov 25 2010 7:12pm
Forum: E-Bike General Discussion
Topic: DrainBrain Appreciation Month !!!
Replies: 18
Views: 2164

Re: DrainBrain Appreciation Month !!!

Very neat, and just the right size. I don't qualify for your promotion, since I'm new to E-bike world with my first build just done, but I'm eager to buy one as soon as it is available.
by MadRhino
Nov 25 2010 6:51pm
Forum: E-Bike General Discussion
Topic: Seoul Cycle Design Competition winner....
Replies: 3
Views: 1811

Re: Seoul Cycle Design Competition winner....

I've had a look at them all. This one would be my choice:

Image
by MadRhino
Nov 23 2010 5:58pm
Forum: E-Bike General Discussion
Topic: 150mm rear axe donor bike
Replies: 30
Views: 3359

Re: 150mm rear axe donor bike

The 9C might be a good choice at a good price, I would have tried one if they were still available with 6X10 winding. I abandoned the idea of a geared hub after taking informations. The Clyte 5X is a sure value cause you can feed it with a lot of juice and power, when you realize that you'll always ...
by MadRhino
Nov 23 2010 5:36am
Forum: E-Bike General Discussion
Topic: 150mm rear axe donor bike
Replies: 30
Views: 3359

Re: 150mm rear axe donor bike

I just built with the same frame (Norco A-line). I used a Clyte 5304, but intend to replace it as soon as I receive a 5306, for dirt use. Dropouts width fits perfect with total axle lenght (had just enough room for a 3mm torque arm on the non-drive side), little dishing was necessary and some spacer...
by MadRhino
Nov 07 2010 1:25pm
Forum: E-Bike General Discussion
Topic: Front mounted batteries?
Replies: 20
Views: 1378

Re: Front mounted batteries?

I mounted the weight on my Marzocchi triple crown fork with 3 u-bolts. The bag has a rigid PVC box inside, containing the batteries (18s 3p lipo), I also carry some tools, a big 4pd cable lock, and even the lunch sometimes. If you look at the picture, the bag is under my handlebar, in the axis betwe...
by MadRhino
Nov 05 2010 7:25pm
Forum: E-Bike General Discussion
Topic: Ae-line 1st build
Replies: 36
Views: 4183

Re: Ae-line 1st build

http://img12.imageshack.us/img12/2231/imag0125ek.jpg Well, I have the bike running for 2 weeks now, and it is about time to post a pic. :D I got it to run before the winter on 18s 3p lipo, with a 5304 and a 72v 49A controler (thanks to Max). The 5306 is on order, and I plan to run it at 100v (maybe...
by MadRhino
Nov 03 2010 10:21pm
Forum: Battery Technology
Topic: LiPo battery care and basic information
Replies: 272
Views: 74701

Re: LiPo battery care and basic information

I'd guess it was a bad connection on the balance taps when you tested it and the cell was at 3.7V all the time - either at the JST headder or where the balance tap is soldered to the cell. The JST -XH connectors are known to be unreliable. Cells don't just balance themselves while sitting on the sh...
by MadRhino
Nov 03 2010 7:33pm
Forum: Battery Technology
Topic: LiPo battery care and basic information
Replies: 272
Views: 74701

Re: LiPo battery care and basic information

One of the packs that I received from HobbyKing was wrong: one cell in the pack was dangerously low (2.54v), with all the other cells around 3,7v. I've put this pack aside with a red tape on, and did not attempt to charge it, since I have more packs than needed right now. Today, I checked the bad pa...
by MadRhino
Oct 12 2010 10:16pm
Forum: E-Bike Technical
Topic: The Custom Spokes Informations Thread
Replies: 34
Views: 6339

Re: The Custom Spokes Informations Thread

You can only manage a single cross with the x5, even in a 26" mtb rim. It will really put the spokes at an angle too. I don't like lacing up those hubs into anything but motorcycle rims, they are just too large of diameter. Thanks John, I will do plain motorcycle pattern then. Single cross with alt...
by MadRhino
Oct 12 2010 9:55pm
Forum: E-Bike General Discussion
Topic: Fresh Full Suspension Build
Replies: 114
Views: 8220

Re: Fresh Full Suspension Build

Nice, I like it! I find your building thread very interesting, since I am building very similar. DH bike with Clyte motor and lipo batt. The only difference: I am building for mountain use. Your bike has 6in dropout inside width? Cause that's my main concern now, wonder if I will have space for prop...
by MadRhino
Oct 12 2010 7:13pm
Forum: E-Bike Technical
Topic: Looking for help designing torque-based throttle alternative
Replies: 34
Views: 3767

Re: Looking for help designing torque-based throttle alterna

If I was to build one, I would try fitting a twist throttle to a chain tensioner. This would make it fully asjustable, by simple setting of the tensioner resistance. The more you bind the chain with pedal torque, the more the tensioner opens, so the throttle. Maybe too simple to work nice, but worth...
by MadRhino
Oct 12 2010 6:35pm
Forum: E-Bike Technical
Topic: The Custom Spokes Informations Thread
Replies: 34
Views: 6339

Re: The Custom Spokes Informations Thread

Just a heads up for you guys, I am making custom spokes from 15 to 12ga right now. http://holmeshobbies.com/product.php?productid=406&cat=0&page=6 We have already had many orders placed for really short stuff going into Ebikes. I am getting a round of custom 12/13 butted spokes so that we can use s...
by MadRhino
Sep 27 2010 7:13pm
Forum: Battery Technology
Topic: New lipo setup
Replies: 11
Views: 832

Re: New lipo setup

The only downfalls to gary's system are that it is kit form, I don't want to build an electronic kit, aren't there READY MADE individual BMS for each 8s pack? I would suggest you run 16 or 18s. If you already have the packs, 16s is plenty peppy. A normal wind 9c would get low to mid 30mph on the se...
by MadRhino
Sep 27 2010 2:20am
Forum: Battery Technology
Topic: New lipo setup
Replies: 11
Views: 832

Re: New lipo setup

...some sort of balancer to ensure that the pack is not over charged and out of balance on a cell level. Some sort of management to keep you from having spend time balancing each chunk. But of course the RC charger methods do work, it is just time consuming. OooH! I don't like 'some sort'. 'some so...
by MadRhino
Sep 27 2010 1:34am
Forum: Battery Technology
Topic: New lipo setup
Replies: 11
Views: 832

Re: New lipo setup

I A also like the idea of peaking lipo at 4.1v for daily use, instead of 4.2. I have an 18s bulk charger coming from EV Assemble that will be set for this. I am tempted to try the bms system off the bike to be used only while charging. I don't particularly like the idea of an onboard BMS constantly...
by MadRhino
Sep 27 2010 1:09am
Forum: Battery Technology
Topic: New lipo setup
Replies: 11
Views: 832

Re: New lipo setup

...The other guys might speak differently, but I would charge the pack at the operating voltage – this way you are not in the business of hooking/unhooking the batteries for use or charging; if you go that route the novelty of it will wear off real soon. :roll: First, THANKS a lot! Your answ...
by MadRhino
Sep 27 2010 12:39am
Forum: Battery Technology
Topic: New lipo setup
Replies: 11
Views: 832

Re: New lipo setup

24s fully charged is 100.8v. What motor, wheel, setup, etc are you using? What speed and power do you want? Wow! my math was damn wrong. :roll: I'm building on a DH bike with a 5305, or a 04, still to buy. Maxwell65 lives nearby, I'll go try his bike and then decide. I will have too much speed with...
by MadRhino
Sep 26 2010 11:25pm
Forum: Battery Technology
Topic: New lipo setup
Replies: 11
Views: 832

New lipo setup

I need advice about the lipo packs that I plan to use. I'm new to this, so I would like to validate my plan. Don't worry, I have a safe place to charge them, all concrete; and I can monitor each cell before charging the packs. I bought 9 Turnigy 5800mAh 8S 25C Lipo Packs at Hobby King. Did not buy a...