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  1. S

    Are my old batt chargers worth selling?

    Have a nice sunpower 12V/30A supply and venom 6S balance charger but don't know about my old, 3-4yrs? EMC 400 chargers and an EMC 600 watt charger. They all have Anderson connectors, 1 for 15S 63.2V/5A, 1 for 18S 75.6/3.67A, and the 600 watt is to fast charge the 18S up to73.8V/6A. Then can be...
  2. S

    West Coast US Events

    Missed 'ya Dave. I charged up a passle of 6S lipos and had 'em handy for you at Grange. You had best clomb on to those lipos soon, I started to chunk the $750 lipos into the dumpster at Grange but hesitated. The 10 lipo bricks have negative value to me, just taking up room in my smallish work...
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    bairdco racing at adams, september 15, 2012

    Outstanding races; what impresses me most is the level of building innovation in the months beforehand. 1st, one must have a real 'electrical' background, then one must have a concept, dedicate himself to the concept, and lastly show up and prove their concept against others. Thanks...
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    bairdco racing at adams, september 15, 2012

    Rather tight heart gripping races. Lots of lead changes. Bumped my power/handling performance up but found everyone else did the same. Goat heat sticker thorn plantation. 3 class racing worked out. Incredulious crash right in front of me, missed by inches, lucky he (Chase) was young and unhurt...
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    bairdco racing at adams, september 15, 2012

    Unless someone has grabbed a new number this summer, these are open E-numbers (does it matter at Bairdcos?) #102, 105, 107, 118-122, 125-129, 5th grade deductive math tells you which numbers are taken :P Have a couple of extra 6S 6Ahr lipos & 1 5S 8Ahr brick. Available if needed 600W 18S...
  6. S

    Anyone done a carbon fibre ebike ?

    I've just rode a 'Century Ride' on my dept store schwinn e-commuter. A few folks laughed and yelled 'Cheater!' but being a charity run, folks were OK with my electric. Interesting, the local bike shop manager and I traded places for around 30 miles thru the mounains. He killed me on the...
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    2 Stroke E-chaser

    Settled on the Schwalbe Big Apples as they were closer to being slicks than the Kiniptions, though both look good. Both the stock tires and the BAs are stated to be 2.15". The stock ones measure 1 & 13/16" wide with a diameter of 24". The BAs measure 2 & 1/16" wide with a diameter of 24 & 3/8"...
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    bairdco racing at adams, september 15, 2012

    After all of Dave's crashes and a few mechanical failures, I think it's time his bike burst into flames :wink: What cha' doing Etard to get some reliable speed and stay upright during the race :?: http://www.endless-sphere.com/forums/viewtopic.php?f=3&t=41959 Wouldn't miss this one Baird...
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    2 Stroke E-chaser

    The batt box challenge is coming together; 1 soldered bullet connectors onto controller, 2 shortened lipo power wires as needed 3 padded lipo brick from box, 4 added shrink tubing to wires traveling between the lipo, 5 screwed and epoxied 3/16" lexan/1/16" 7075 aluminum, 5 cut/epoxied velcro...
  10. S

    2 Stroke E-chaser

    The 4 5S 8Ahr lipo bricks can power 12-15 racing laps but voltage would sag below 64V. Another 4 smaller 5Ahr bricks should keep the voltage up to 68volts to the checkered flag. The 4 5S 8Ahr lipos are in series for nominal 74V just as the smaller 4 5S 5Ahr lipo bricks are. The 2 series packs...
  11. S

    2 Stroke E-chaser

    I’ve pushed the lyen 6FET controlled to its’ limit, 30A up to 84V(20S), maybe as high as 2.5K off the line at the June16 Baird race. For 40Amps, Ed (Lyen) sent me his MarkII 12FET sensorless controller housed in a bigger box; can you say bigger ‘heatsink?’ Though I'm suspious above 35A for the...
  12. S

    2 Stroke E-chaser

    A pleasure Dogmanz, We'll race as senior racers and both finish upright. One of the novice moped guys T-boned me at Grange. I was so surprised that I didn't try to put a foot out, just thought I'd slide a little and regain control. He caught me straight on right behind the BB so my elbow/hip...
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    2 Stroke E-chaser

    Day 7 beefing up motor phase wires In peak performance situations, one electric weakness is hot motor phase wires. Getting 12ga wires thru the axel was a challenge which I botched. In the struggle to fit 12ga I removed a clear layer of insulation. When trying to force the wire thru the...
  14. S

    Need torque arm advice

    Well well, happen to have an extra Grin torque arm. I ordered 2 and the idea of 'modding my wide 150mm Chinese bike drop out area' came to fruation. Check your PM. Will Dogmanz, now that's a functional racing 9C drop out :!: And check the 2 Stroke E-chaser thread...
  15. S

    2 Stroke E-chaser

    http://www.premiumelectricbikes.com/green-cruiser/ Keep in mind that components are pretty cheap; seat, seatstem, chainring, headset, controller ect. . . I probably ripped 'bout 20' of wiring out of it. Nice shifter, throttle OK, good spokes, itsy bytsy motor good for 16mph@15A.
  16. S

    System (U, Motor, Controller) Efficiency

    Set up for Enduro time trial: Baby BaFang8fun 20A Lyen mini-monster controller 18Ahr 12S/45V Lipo .710W for 70mile or 10.25Watt/per/mile average 17mph until the last 12miles (dang my feet and nuts were numb) Set up for Adams Kart racing June16th: 9 Continential 24" wheels 30A Lyen mini-monster...
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    2 Stroke E-chaser

    Day 5 The 53T front ring and 13T rear sprocket enables pedaling out of turns. http://www.sheldonbrown.com/gears/ (29mph@100cadence) To remedy sluggish shifting there’s trimming, shaping, and rerouting of the cable. Now it’s 5th gear off the line and quick click to 7th. Going from 6speed to...
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    2 Stroke E-chaser

    Day 3 There’s to be some robust power with 100% of the torque getting transmitting to the axle. A spinout can result in ripped out electrics and a discharged rear wheel, dangerous! Turns out the wide spacing of the Chinese 150mm dropout is perfect to build in torque arms (without arms!) as...
  19. S

    Shwalbe Super Moto Bicycle Tires

    Today's packages, 24" tires, except (XXXXX) Moto HS231 23" (click on pic, 23" readable on tire wall): Big Apples @2.15w 660grams, comparably thin, especially on the side walls, feel soft with almost slick tread (HighSpeed E-bike rated 50kph/31mph) Kiniptions @2.3w 745grams, 2ply thicker than...
  20. S

    Shwalbe Super Moto Bicycle Tires

    Pirelli moped tires I don't think have a puncture resistant belt but don't have flat issues when run on bicycles either. Puncture resistant can come from really tough material or not as tough material that's really thick. As you shop for tires; 2 ply is good, new fangled puncture resistant is...
  21. S

    Shwalbe Super Moto Bicycle Tires

    Stealing my thunder grindz145, I've ordered both the Big Apples and the Super Moto tires in 24" (and kiniptions from another company). I ran 26"X2.0 Big Apples 1 year and loved 'em. Didn't own but rode other bikes with the Hookworms. The BA aren't as soft and sticky yet they're not hard and...
  22. S

    2 Stroke E-chaser

    August, time to vamp up our race bikes! The E-crowd is talking up Sept15 as ‘the world championship’ of motorized bikes. I even heard there was some crazy guy driving down from Michigan. So, a day to build, a day to post, here goes: For me, running mid-pack with a tire just in front, someone...
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    bairdco racing at adams, september 15, 2012

    Likely, just got some out of state plans I hope I can work around in Sept./Oct. Thinking of bringing 2 bikes. The 2012 (E-bike) MotoredBike World Championship is officially at Adams Sept 15th. Thud, Luke, and Farfle just made it so. (see posts below) I may have a little trick up my sleeve as...
  24. S

    Anyone run a 10x5 in a 20" wheel?

    I recently run my 2806/24"wheel at 20S/30A peak 2.4K. Not worried about heat for the <15min racing at Adams 6/15. Top speed was close to 35mph. Yep, your chart underestimates the Watts needed for 40mph cruising. It's an extremely optimistic power requirement. If semi-upright comfortable...
  25. S

    West Coast US Events

    Dave, You funny man, my wife doesn't bath me when I'm broken up. If left turns in the car pain me, she whips a 270degree and says, isn't that house a pretty yellow? OwWWW! Trust me, I never have to protect her. And unbelievable advances in technoloty, ala Misty Mate! More seriously, Luke...
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