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10-06-07, 08:47 PM
Here's my Sun EZ Sport AX (aluminum) with a Crystalyte 405 front hub kit.
http://img223.imageshack.us/img223/2570/index001003db2.th.jpg (http://img223.imageshack.us/my.php?image=index001003db2.jpg)
I just got it all assembled and wired this morning and went for my first test ride this afternoon. The kit came with a 48 volt SLA battery pack, 35A controller, e-brakes, and a thumb throttle. As you can see from the picture I still need to dress the wires and cables. In addition I have to permanently mount the controller and adjust the brakes as well as make a bunch of other minor adjustment.
The installation wasn't too difficult, but I ran into a couple of problems. With the new front wheel/hub, I find that the wheel is closer to the right side of the fork than the left side. No amount of fiddling corrected the problem and the hub spindles are fully set into the dropouts. I have been able to re-tension the front brake springs to make the brake work, but I'll have to find a better solution next week. Earl Witcher at the Poweride Store suggested that I adjust and tighten all of the spokes on the left side, but I'm not sure that will do the trick.
The other problem I encountered was the battery charger burned up shortly after I plugged it in. Earl is sending me another one, so in the meantime I'll have to curtail my check rides so I don't run the battery down.
Performance wise, the bike exceeds my expectations. On the level with full throttle and hard peddling it goes faster that I am comfortable with in my neighborhood. After I charge the battery I'll put my GPS on the bike for a true measurement, but my gut tells me that I've already broken 30 MPH.
http://img223.imageshack.us/img223/2570/index001003db2.th.jpg (http://img223.imageshack.us/my.php?image=index001003db2.jpg)
I just got it all assembled and wired this morning and went for my first test ride this afternoon. The kit came with a 48 volt SLA battery pack, 35A controller, e-brakes, and a thumb throttle. As you can see from the picture I still need to dress the wires and cables. In addition I have to permanently mount the controller and adjust the brakes as well as make a bunch of other minor adjustment.
The installation wasn't too difficult, but I ran into a couple of problems. With the new front wheel/hub, I find that the wheel is closer to the right side of the fork than the left side. No amount of fiddling corrected the problem and the hub spindles are fully set into the dropouts. I have been able to re-tension the front brake springs to make the brake work, but I'll have to find a better solution next week. Earl Witcher at the Poweride Store suggested that I adjust and tighten all of the spokes on the left side, but I'm not sure that will do the trick.
The other problem I encountered was the battery charger burned up shortly after I plugged it in. Earl is sending me another one, so in the meantime I'll have to curtail my check rides so I don't run the battery down.
Performance wise, the bike exceeds my expectations. On the level with full throttle and hard peddling it goes faster that I am comfortable with in my neighborhood. After I charge the battery I'll put my GPS on the bike for a true measurement, but my gut tells me that I've already broken 30 MPH.