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  1. J

    Light, high torque, powerful mid drive motor choices

    For gearing I have been using a 5.8 reduction. 13 front and 76 rear. But on the 1000w motor I am going to start with a 16 on the motor and work out what suits best for my needs. I have not tested top speed for a while but I have had 48mph with a different ratio on the smaller motor. All my...
  2. J

    Light, high torque, powerful mid drive motor choices

    I am currently just sorting out the wider 1000watt rickshaw or GNG type motor for left side direct drive, I have been running the 500w version direct drive to the rear freehub for over a year with 5000 watt peaks and no issues using kart 219 sprockets with a Lyen 12 Fet. So far I have 2 of the...
  3. J

    LightningRods mid drive kit

    We had the same problem on the gng when we started upping the power about 18 months ago, we welded a plate between the 2 upper sheets on the front to make them 1 piece, took out all flex even at 4200 watts Think needmorespeed posted pictures somewhere
  4. J

    GNG, 1000W 48V BB-drive, $400

    Jackshaft bearings are 32mm o/d 12 mm I/d easy enough to get! I tried running without chain guard and had too many problems I think chain guard is a must on this kit!
  5. J

    GNG, 1000W 48V BB-drive, $400

    I am using 24" rear wheel with a 3" tyre so almost same size as a 26 Needmorespeed has 26" on his Controller is not standard on either bikes I run 63v Max at 44amp Needmorespeed has 68v at 35 amp That is why we changed the ratio more top speed, also we couldn't use the largest 2 rear sprockets...
  6. J

    GNG, 1000W 48V BB-drive, $400

    We used standard bore and enlarged it ourselves to 10mm for the 12t 57t comes with 12mm bore which is the right size for the jackshaft we had technobots put 2 taped holes in each for grub screws and put small flats on the motor shaft cheers Justin
  7. J

    GNG, 1000W 48V BB-drive, $400

    We also have got rid of the belt, in the UK mud this time of year was killing belts on average every 8 miles, if it gets wet and slips it snaps the belt. We have changed to BS 04b chain and sprockets 12t on motor & 57t on the jackshaft. With this setup there is no need for a tensioner or...
  8. J

    GNG, 1000W 48V BB-drive, $400

    Hi all Needmorespeed and I have both added another sprocket on the gng, 46t on mine & 48t on his. Both bikes are running over 2000w. Really made a big improvement for both of us even riding cross country
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