Bicycle
Super Voy
Submitted by moveon70 on Sat, 09/26/2009 - 12:48I bought a used Voy that had been garaged and in good condition.
I am upgrading it from a 36V 180W system to a 48V 1000W system.
I am also upgrading to LiFePo4 batteries.
- 1 comment
- 176 reads

my electric bike build
Submitted by chill4x4saph on Fri, 09/25/2009 - 03:13Hello to all!, i am a new member on this site but i have read posts as a none member and found it very interesting in the past! I thought i would show you some pictures of the bike i have just designed and built, i have made the frame, swing arm, suspension pivots, brake/chain adjusters and brackets from scatch, and mostly from stainless steel! the front suspension are marzochhi bomber 888's, the rear shock is a manitou swinger 4 way, the wheels are eclat bmx rims mounted on mountain bike hubs (hope pro 2 front, dmr revolver rear) with hayes hfx9 hydraulic brakes. it is powered by a briggs and stratton etek running off an alltrax programmable controller with 4 33ah agm 12v batteries. the bike will do 50 mph with a 20 - 25 mile range (at around a 25 - 30 mph average speed) and will power wheelie at 20 - 25 easy! ( and thats with a 235 pound rider!). i built the bike, tested it, then stripped it to paint. The pictures are of the final assembly after painting! hope you like it!!!
Spoiled Spoiler
Submitted by Spoiled Spoiler on Fri, 09/04/2009 - 09:05Bought a bone stock Schwinn Stingray Spoiler and soon after decided to convert it to electric. Little did I know then what a mess I was getting myself into. At first, I thought I would be happy with swapping the front wheel for a hub motor and that would be it. Boy was I wrong. With the Springer front end the motor groaned constantly and the wheel hop was real nasty. After spending a month doing some research, I finally decided what to do. My first attempt and higher performance was really simple. Add a big motor with a big sprocket to the rear wheel; add some big batteries and we'good right??? So... in went a 1000w brushed motor and a 90 tooth sprocket. Hauled ass when moving but had zero torque and was super hot after 10 mins. After a few back breaking hours of work and adjustments I was happy.... for awhile. After adding the perm mag motor and SLA battery pack, the bike was a beast to pedal.
A year later the bike was ready for round 3. After much debate concerning what kind of upgrade to go with, a fresh batch of used Schwinn Stingray Electric bikes were all over Craigslist and EBAY. I found one in good condition and robbed every part I could find. I wanted just the OE hub motor that was laced to the 20" x 4.25" rear wheel. Stock ratings were very low and so was the performance. At 24v the donor bike maxed at 15 mph. Then I added another 12v and then the motor had finally some balls. Almost 5 mph faster at 36v. So I began swapping the rear wheel on my Spoiler and made a big mistake. I took my original rear wheel and leaned it against the front wheel. Later when taking a smoke break, I looked at my Spoiler with the wide 4.25" tire next to the skinny 2.1". I loved the look of the wide tire up front. I thought how hard could it be?? So I decided to find another hub motor and go all out. A week later I found one and bought it. I am still working on my custom designed and milled triple clamps for the 4.25" wheel in front. The OE triple clamp is made from aluminum and measures 5/8" thick for the top piece and 3/4" thick for the bottom clamp. I purchased some raw aluminum from McMaster Carr as well as a 2" x 12", 1/8" thick sheet of 316 stainless steel for my torque arms. A local CNC shop wanted $500 to make them, but I simply can't justify spending that much so I'm milling them at work when I can. It is taking forever but I'm not spending $500. The bike only cost me $550. At some point I will also remake whole new steel dropouts for the Springer instead of the stock aluminum ones. So far my stainless steel torque arms are working for now. The hub motors come with the standard 24t threaded hubs. The rear one has the stock freewheel and a hub adapter for a 6 bolt 180mm rotor. The front hub motor has had the freewheel removed and two hub adapters bolted up to 2 180mm rotors. The debate still contiunes about which type of brakes I'll be using. Mechanical or Hydraulic....any input on this issue would be appreciated. The front end also has a basic “motorcycle” headlight as well as an iron cross tail light. Both came stock with "1157" 12v bulbs in them and will be soon swapped with high output LEDs. The chrome plastic battery case from the donor bike now houses my both of my motor controllers, key switch, XLR charging port and some diagnostic LEDs. Its kinda cheese ball for sure but it resembles a V-Twin motor and fits perfectly in between the cranks and is complemented by a fiberglass gas tank with a set of speakers, my audio system volume control, a Watt's Up meter and an IPOD dock molded into it. The "mini" subwoofer will be housed inside either the V-twin case or I was thinking about making a fiberglass fake oil cooler that can mount under the saddle. For now the entire system is powered by a 96 lbs 12v, 35ah SLA battery pack wired to 48v hidden in Saddlebags. The whole rear end of the bike has had battery trays permanently welded to the frame and the bags cover the batteries well. At some point when I have an extra $800 just floating around in my pocket I will swap them out with a LIFE4po battery that weighs only 15 lbs. When that happens, I'll adios the battery trays and saddlebags entirely, shaving over 90 lbs of dead weight. I still have a ton of work to do before it even ready for its next ride. Even then it wont be long before the backbone is chopped and I soft tail it with a mono-shock. If anyone else is interested in converting their Spoiler to a 4.25” wide front tire, please follow my progress and start placing some orders or deposits for these triple clamps. If I can get 10 people to buy them, I can have them all made for $250 a piece. Stay tuned for some new pics......
- 3 comments
- 338 reads

BionXtracycle
Submitted by bxcycleman on Sun, 08/09/2009 - 11:56
I like this bike more than just about anything. It's just fine for large items, like construction lumber and tools. It's so versatile. I have great gears, big bags,Bionx power when I need it, and exercise. It's not bad in winter, either. When the system is used in "regen" mode, the back wheel is dragged down consistently, so riding on ice and snow becomes more sure.
Daymak Austin E-Bike
Submitted by Judland on Mon, 06/22/2009 - 18:51Oxygen Emate electric bike, electric bicycle, ebike
Submitted by yendrek3 on Tue, 05/12/2009 - 00:44Hi I Own my wonderful Electric bike. It's made by Oxygen Bicycles and I just love it. It's a 36V motor with lithium ion battery, takes me everywhere in London. The one I bought is Oxygen Emate Explorer Got is at the good price for the quality. If anyone looks for an electric bike then I can recommend this one. I had it for the past 12 months and the only thing I had to do is to change the brake pads and recharge the battery. Definitely good value bike for money.




























