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  1. C

    Building the Best Controller

    "when u build it, they will come" ;) im a former application developer, i wont promise too much cause it makes me sick (no joke, burned out a few years ago, get depressive and had to quit my job to save my soul), i promised myself to not dive into coding too deep again, but im willing to do...
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    Sinclair C5 YES or NO ??....NO IT IS...

    actually im unfortunatly out of funds, otherwise i would have bought it. its only a few hours away, so transportation is manageable. if its still there till end of next month and i can afford it, i ll get it.
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    Folding the plan... need recommendation for a motor - quick!

    rc controllers are known in general to blew up when used in e-bikes. the castle creations seems to last longer and they have a flat replacement fee. afaik almost every turnigy esc used in this forum is blown quite quick. a slipper clutch may help to prevent it from blewing too fast. also u...
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    Sinclair C5 YES or NO ??....NO IT IS...

    its not categorical valid for hole europe but especially for the netherlands, bikes are part of their culture and lifestyle. its absolutely flat and its a small country, its all compressed, there are no long distances in the netherlands. i know the design looks familiar, first i tought on this...
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    Sinclair C5 YES or NO ??....NO IT IS...

    the thread opener is located in the netherlands, a country where cyclin is mainstream, suv drivers are the minority there and they are all aware of low and fast vehicles like recumbents, there are a lot of them, propably more than anywhere else in the world. so i think drivin there with this...
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    Sinclair C5 YES or NO ??....NO IT IS...

    financially is not ur problem, technically i think there were some developments in the last 20 years. what about a rc setup, lot of lipo or lifepo, add an differential ... . i think theres a lot of room for improvements. whats the reason for cornering problems? where were the batteries located...
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    Sinclair C5 YES or NO ??....NO IT IS...

    ive never seen this thing before, looks awesome. for 250 euro dont ask, buy. if it turns out it doesnt fit ur needs than sell it maybe with profit. how does it work? rear tires driven? is there a differential or is only one side powered? what about the handlebar? do u put ur legs above or is it...
  8. C

    New Bosch drive system

    i totally agree with u. what i want to mention is, that there is the possibility for faster, more powerful ebikes in europe. called s-pedelec, its restricted to 1000w max, 25 km/h without and 45 km/h with pedalling. but ur not able to build one by yourself except u have ur personal lawyer, a...
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    New Bosch drive system

    exactly thats the point. but im sure they will release a higher power version for s-pedelec when they find reliable partners. the problem with s-pedelecs is that u have to have certification for every single part that its save for 45 km/h use + certification that the whole bike assembly is save...
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    Current Cycles Prototype Buildlog...

    if its a standard metric thread u can figure out the pitch according to diameter with this chart http://www.gewinde-normen.de/en/iso-coarse-thread.html
  11. C

    geared kona dirt jump frame SOLD

    when u have a close look at the pictures its quite easy to backtrack :wink: manufacturer: http://yiyun.cn/Product_Detail.asp?ID=109 dealers: http://www.tncscooters.com/YK43B.php http://cgi.ebay.com.sg/NEW-24-60-Volt-Controller-Model-YK43B-/330424800950?pt=LH_DefaultDomain_0
  12. C

    The Greatest Story Ever Told

    u dont know anything about particle physics right? ever heard of heisenberg? on a subatomar level its always "or". dont take me to serious, im just kiddin. im an atheist believing in the laws of thermodynamic. but keep on doin ur missionary work, maybe im wrong. :D
  13. C

    Wide BB width

    u cant add that, its an 123mm axle inside a 72mm tube. final width would be axlelength - 2 x crankwidth at bottom + 2 x offset. i cant remember where it was but i ve seen cranks bended with heat to a greater offset, dont know whats the influence on integrity with that. i wont try it under heavy...
  14. C

    My Motorcycle Weighs 40 Pounds, How Much Does Yours Weigh?

    in the video he mentioned the max rated power is about 3.somewhat kW. i think the 1.2 kW is for travelling speed (30-50 kph according to their website) edit: thanks for the link http://www.clean-mobile.com/drivetrain/ thats an explanation for the 6.3 kg. edit2: thats not the drivetrain they...
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    My Motorcycle Weighs 40 Pounds, How Much Does Yours Weigh?

    i agree its way overprized but the intention for building this bike was "whats possible?" not "how much?" thats typical for F1 related companys, they dont have to think about budget. this way many innovations found their way to market during the years, like ABS, traction control and so on. from...
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    Folding the plan... need recommendation for a motor - quick!

    there is nothing wrong with the turnigys. as mentioned before, apply some additional glue and they will be fine. quality differences to non-budget brands are mainly bearings (u can easily change them to higher quality) and glueing of the magnets. and of course they are wound with "love", e.g...
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    Folding the plan... need recommendation for a motor - quick!

    ok, i will have a try. to 1. an answer u dont want to hear, it depends... :D the lower the kV, the less reduction u need. so low kV helps to keep the drivetrain simple and the efficency loss low. the budget motors are all doin fine but some loose their magnets because of bad glueing. so...
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    Custom Build... 2 Speed H.O.B.O Powered e-Cruiser

    the higher ur wrists, the sooner ur hands fall asleep. for longer rides ur hands have to be below ur heart. btt: im lookin forward to this build. looks very nice so far. when i first stumbled about ur first build i was totally stoked and had to read 60+ pages , cant stop.
  19. C

    Big Turnigy 80-100 build thread

    i think that wont work afaik, limiting the current at a given load would force the controller to go into partial throttle and the controller has the same stress. i hope im right on that
  20. C

    Concept: Custom cruiser-style GRP-build

    thank u, yes i will keep the fenders. i just dont want to build them before the frame is finished. i will rebuild it when the measurements for dropouts and motor/gearbox are clear. i also made a mistake with the steering angle. atm its like a roadbike at about 78 deg, i want a less nervous angle...
  21. C

    Totally off-topic, but still a very cool project.........

    thats a great thing, adding another chamber would make a nice watergun, or it sputters icecubes for ur next coktail party :D
  22. C

    Concept: Custom cruiser-style GRP-build

    ive made some progress in teaching that programm not to fool me :D, this is the result so far befor i begin calculating the gears, i have to make a decision for the batteriepack. on this i need some advice. -during my search for valuable lifepo, i found this...
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    Concept: Custom cruiser-style GRP-build

    Hi, I was dreaming of building my own bicycle till i was a child and had a ride in an alloy alleweder velomobile. now, grown up (still childish) its time to make it happen. first i thought of welding some kind of short recumbent out of steel but i did not have a shop nor appropriate tools. im...
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    D's RC Drive Kona DC1

    hi there, looks like ur power output is kind of logarithmic according to ur throttle. are there any throttles out there with an exponential behavior? that would be the easiest way to give u more control without loosing any power. if there isnt: im not an electronic guy but im sure theres a...
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    RC Throttle converter

    i dont know where u r located and if ur willing to sell to europe, but there are some issues with european legal requirements difficult to match with most types of controllers. maybe its something for ur feature list. i will start with the most common. in most european countries u need a pas...
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