View Single Post
Old 01-23-2010, 12:41 PM
Cannonfish's Avatar
Cannonfish Cannonfish is offline
Motorized Bicycle Elite Member
Join Date: Apr 2009
Location: Maryland
Posts: 104
Default NuVinci installation on a Micargi cruiser

Step two - measure the rear triangles of your frame. My Micargi came with a rear dropout-to-dropout measurement of about 115mm. The Nuvinci hub is somewhere around 140mm wide (plus I added a rollerbrake, which made it even wider). It wouldn't fit no matter how hard I tried to cram it into my frame. One method of spreading the rear triangles is described in this website: Bicycle Frame Spacing. Since I already had an engine, shift kit, gas tank, etc installed on my frame, I didn't want to take the time to remove them in order to use this technique - instead I used a 12" piece of all-thread, two nuts, and some large washers. The picture shows the placement of the all-thread, and then I just turned the nuts, gradually opening up the frame. Note - only do this if you have a steel frame!! (see if a magnet will stick to your frame first). Aluminum frames apparently do not bend well.
Attached Images
File Type: jpg Step2.jpg (274.5 KB, 130 views)
Reply With Quote