48V Ping - Brushless Wilderness Tests

engr_scotty's picture

11/16/2008 - 1st Long Ride (~5miles): Stable, smooth performance. About 23-24mph on flats. Very quiet. Some cogging at startup, but soon goes away. Some vibration up the steepest hills without pedaling. Pedal-first controller is smooth and kicks in about 3mph or less. May opt for the "shunt mod" in the future to double the current (40A). Bike uses a shimano internal hub shifter, which is a great match to the hub motor: very easy shifting. Highest gear is just barely acceptable for pedal assist on the flats & downhill. May opt to up the "front ring" of the bike for higher gearing...

      bike: ready for a MN winter

      my brushless rig

Development Background: Bought bike from Craigslist. Came with 400W BL-36 and no battery. Wanted to go to 48V, and quickly found out that the controller was only rated at 50V (50V caps). Bought C7220PF controller from ebikes.ca. Bought Ping 48V 16Ah V2 battery on ebay...

      pre assembly

Forks are welded aluminum, appear very strong, but still wanted a torque arm for safety. Ampedbikes seems to have a killer product...

      ampedbikes torque arm

      stealth ping battery & clyte controller
before comments

Comments

Hey, did you only mount a torque arm on one side? How do you mount a torque arm on the side with the motor wire coming out of it? The plug is too big to go through the axle slot in the torque arm, right? So, do you take the plug apart/off to get the torque arm on?

dogman's picture

On we motors, the axle slot allows the wire to exit through the space at the bottom of the dropout on the fork. On other motors, with the hollow axle, you might have the problem you describe.

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