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  1. R

    Conway e-rider

    Hi guys I had a run for aprox 1 km last euro bike show. Sorry to say I was not impressed . The bike make noise , but not so terrible . The bilance is ok. The respinse of the motor , is quinte disappointing ,considering the power of the motor . Or what they rate it for ! Other bikes with far...
  2. R

    cpm 90 motors

    I met with them at a Bike show in Milan , the guy was not that keen in pushing the motors more then much . cost is aprox 2000 euro for a first run , that includes motor and software to program it . it is based on a canbus platform . he said the major business is in the heavy truck industry , in...
  3. R

    New Build crystalyte 4080 / 3580 down hill bike UK

    personally I would NOT put the batteries on the front forks ! :shock: :shock: because any weight you put on the forks will make steering heavy and slow in reaction . unless you drive on paved roads and mainly straight . rgs Renago
  4. R

    gearbox bike, belt drive, sequential shift etc.....

    very smart idea , there is also Pinion that makes nice gearbox , and Suntour . I think it is similar , as concept , to the Honda bike presented some years ago RN01 . will it withstand the torque that an electric motor has ? I recently spoke with the engineer that designed the Pinion gearbox ...
  5. R

    Modifying a Hammerschmidt for mid-engine (freewheel?)

    I think the idea is very good . the system is working like a normal sungear . parts are custom made , don't think they are easy to find off the self . Renago
  6. R

    Ebike "The Resurrection"

    I'm doing something similar , but don't have any pic at the moment. one thing that is not clear is about the balancing wires : here we have 10 battery packs , but only 5 exit for balancing ? how can this be ? when you want to recharge all packs , you must break up the wiring and ri fix them...
  7. R

    375Volts Celllog

    very cool :shock: :shock:
  8. R

    C discharge rate

    I think I'll go for the LIPO , at least on my first bike. there is also a second in the pipe line , with a central motor. the experience on the first one will a good learning curve . Renago
  9. R

    C discharge rate

    having a capacity of 15Ah , doest mean I must ride full throttle all the time . in most cases the track is difficult so the average speed in motorcycle is only 25km/h . in some point we speed up till 80km/h , but this is very short . mainly I need the power to make some short acceleration, or...
  10. R

    C discharge rate

    ok, this is clear , but which type of battery would you choose , Rc lipo , or A123 ? renago
  11. R

    C discharge rate

    next week I will finally have almost all components for my first e-bike . BUT...... I am very unsure on which batteries :| the bike will be used for fun , 90% off road , single track , on hills. motor Cry ht 3525 . Lyen controller, 18 fet . I was thinking to have aprox 15-20 Ah of capacity...
  12. R

    which used DH-frame for mid-drive build?

    I would go for the Kona Kahuna , and change the forks . in the frame you should have enough space for some good batteries , 15 ah.,and the controller . but ..... if you really want to make a nice job , cut the frame and add the battery container ecc , Scott Nitrous . Renago
  13. R

    C rating Batteries

    forgot to say 88 V
  14. R

    C rating Batteries

    let's say I want a 20 Ah pack . keep it simple . what kind of volume-size and money I need for A123 Vs RC Lipo ? Renago
  15. R

    C rating Batteries

    as said most of things are already set . I must take a decision on what kind of batteries to run. the RC lipo are relative cheap , and offer the best ratio of power to Kg and volume. the A123 , and Kokam are nice but , we have some big disadvantage : power / volume per Kg of battery is lower...
  16. R

    C rating Batteries

    sorry guys , I missed some important info. the voltage I think to run is 88 V my weight is 88 kg speed , well all depends from the terrain , but lets say 25 as average with peaks on 70 , very short . and many parts between 10-20 km/ H all off road , like enduro single track , I have 2...
  17. R

    C rating Batteries

    I am working on my e-bike , got the motor Cry HT 3525 , got the controller 18 Fet Lyen . bike is on the way . which battery should I choose ??? which C rating and what kind of Ah should I allow ? thinking to start with 10 AH the use will be mainly off road , wheel 26 . thanks for any...
  18. R

    Crystalyte HT 3525 Intense Uzzi

    Hi very nice job , I have ordered Cry 3525 as well and a controller that just arrived , actually 2 sets , because I want to make a central version and a hub classical. the final use will be on mountain rides as well . I am interested to understand how you would compare the ebike drive , vs the...
  19. R

    Super monster T Downhill Dual cyclone Cnc Watercool motors

    you have a very nice ad clean bike . do you have the two motors in the rear hub ? can't see much from the picture . what about the batteries , in the back pack or in the frame ? Renago
  20. R

    New serious Offroad bike : The Chainer

    what about the Cr/mo tubes I highlighted to you . were they open to sell some to you ? or maybe you are using this as a prototype frame ? I will start mine at the end of August after visiting the bike show in Germany . Renago
  21. R

    New serious Offroad bike : The Chainer

    very nice job mate :wink: the SS 316 is a very nice steel, if you weld it with the right wire , welding is a piece of cake . also the final result will be nice smooth and elegant . may I ask what kind of angle did you decide on the front ? Renago
  22. R

    New serious Offroad bike : The Chainer

    looks to me that the pivot point is a "bit" too high . mt personal impression . Renago
  23. R

    New serious Offroad bike : The Chainer

    all old bike were braised , because at that time TIG welding was costy and not so commune . If you brase the joints I would not go over 1 mm thickness for joints . pls consider that the final thickness will be the joint and the wall thickness , in CoMo steel , so aprox 2,2 mm !!! that is...
  24. R

    New serious Offroad bike : The Chainer

    I would go with CoMO tube from Columbus , very strong and light , here is the link http://www.trafiltubi.com/doc/eng/chisiamo1.htm . they have many tubes and size on stock , so you should find yours . generally thickness on these tubes is 0,7-0,9 mm . in some cases they also have thicker at top...
  25. R

    enduro E-Bike ,need HELP !

    Hi Incememed nice video you have posted . that's more or less the idea . In my area we have more hills and mountain tracks . so the goal will be even more difficult. after going through almost all treads on this and other forums ,over 2 mounths of reading I have made up my mind on the motor...
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