DrkAngel wrote: ↑
Dec 02, 2017 9:32 pm
Me ... I've been stocking up on projects to keep me busy this Winter ...
3-5 eZip rear wheel rebuilds:
2 with broken spokes, to be respoked with 13ga SS spokes and washers to pull spoke elbow close to thin hub flange.
3 with broken bearing cups. Will need to cut out old and, hopefully seat in replacements.
Got bored after work so dragged out the old eZip wheels.
Laced up 2 wheels with the 13g SS spokes.
Drilled out the rim for good spoke angles and added SS washers to the spoke elbows. EZip spoke flanges are too thin, leaving elbow flex and eventual breaking. I place washers on the spoke at the flanged end. This pulls the elbow tight to the flange, eliminating flex.
Replaced 1 bearing cup.
Left\right threaded hub. Not so easy!
End is pressed over the cup, I had to grind off 1/16"+ then drive out the old cup, trim and rework the threads then shim the cup.
Got me 3 spare eZip wheels! ... Got 1 more bearing cup of proper size ...
1st 13g re-lace
, I crossed spokes so that they rub against each other.
I laced so that the spokes never touched each other, which proved much simpler.
13g spokes were tightened to somewhat snug and wheels true, with need proper tightening after initial "run in" then later again when fully seated and tensioned.
Have enough 13g SS spokes for 2 more wheels.
Think I have 1 more eZip wheel with 1 broken spoke?
2 eZip wheels have never needed re-spokeing and will probably run till needed ... have spares now!
I do have 12g SS spokes for 1 more HD build but will need to find worthy-capable L\R hub, the oem eZip bearing cups aren't tough enough.
after thousands of miles are not perfect, but laced properly. If and when new rims are needed, or I find a bargain, rim replacement is simple!
22g insulated copper on small spool is used to wrap every spoke intersection
All nipples removed
Hub spoke assembly slid out of old rim and slid into new
Spokes are proper size and threaded evenly, so I place finger nail at thread end and tighten nipples with VSR cordless drill till touches fingernail
This typically leaves wheel straight and with light tension on spokes
All spokes tightened evenly 1 turn each ... till fairly tight
Time to place on stand or bike for final trueing
Same method used to replace rim on hub motor.
Tip for - Double rim replacement
After spoke-hub assembly placed, getting nipples properly inserted can be tricky.
Use spare spoke
Back thread nipple partially onto spare spoke - couple turns
Insert into doublewall spoke hole
Finger thread nipple onto new spoke, this will unthread from "spare" spoke