Monday, September 20, 2010

I added a larger chain ring to the crank set. It will help me catch the freewheel sooner. It will help keep the speed up going up hill and take some stress off the motor.

The 12v switch works very well. Between the 12v setting, the 18v setting and the 24v setting I pretty much have a throttle without buying a throttle or controller. The way to do it is simple run you end ground on the battery pack to the motor's ground (black lead). then run one wire from the ground (black lead) on the front battery to the hot (red) wire on the battery you previously grounded to the motor.

Now run a wire (through a switch) to the unused positive (red) terminal on the front battery. You should use a fuse or breaker on this circuit. This will be your 24v circuit and it is the fast one. Now run a wire through another switch to the positive or red terminal on the second battery in line. This will be your 12v circuit best used for starting the bike from a stop.

12v on/ 24v off = 12v slow speed
12v off/ 24v on = 24v fast speed
12v on /24v on = 18v or medium speed.

12v off /24v off = stop....\

With the new chain ring, I might not need to get a geared bike for the 24v motor. Then again I might.

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