I just passed 2000 miles, with my "Stepthrough", and thought I would post my review-impressions.
Ist off, I am satisfied.
The quiet, comfortable, ride is an nice alternative to my speed-power enhanced EZips.
Also, the stepthrough feature is almost a necessity, when carrying a load on the rack.
1. The battery drops into the rack and contacts with 2 brass(?) contacts.
Both of these sets of contacts melted the plastic retainers, that allowed the brass contacts to move freely.
This resulted in poor, but then, damaging contact.
I resolved the fault, by replacing, with the contacts, from a 2008 Mountain Trailz, which had been modified, for 37V.
I've never had a problem with the 2008 MT pack contacts.
Alternately, the 2008 Trailz, had cupped stainless contacts, which also suffered 1 failure.
From my first EZip, contacts seemed to be a problem, they got "dirty" and provided poor connection.
The pack rattled in the rack, with brief power loss and lock damage.
I bent-squeezed the rack slightly, with a tourniquet, so as to hold the pack tightly, and added a 1/2" bungee, around the rack, which also held the pack-packs firmly down. I also added "heatsink" conductive silicon grease, to the contacts to help maintain contact and prevent contact degradation.
2. Broken spokes!
I had about 4 instances!
I even resorted to buying 12ga spokes, not installed yet, a Winter project, may require drilling ...
Strangely ... the breaks were on the pedal sprocket side?
I say strangely, because all the 2008 Trailz's always suffered broken spokes on the motor side?
I didn't realize the significance, till I laced a new hub into a wheel.
After careful consideration as to directional torque and how the spokes were supported in the hub flange, I determined that the motor & pedal torque should be sustained by spokes with the elbows turned outward.
After looking at my other EZips, I was able to confirm that the spokes were breaking because the torqued spokes had their elbows turned inward!
A picture of my 2008 EZip MT w/16 mod.
As you can see, the inward turned elbows are poorly suited to survive torque.
14ga spokes might work satisfactorily with the EZips, if properly directionalized!
Well it's about time for me to pack away the Stepthrough, and put my Winter EZip back on the road.
Configuring my pack heaters ... now.
One last thing!
Whitewalls NOT recommended for the EZips!
The alloy wheels, combined with brake residue, road grime etc, creates some grungy, nasty black-gray staining.