Spare parts: Pulleys and belts...

I found this on Amazon after trying to find a new pulley where mine stripped out, as mine has the micro grub.

These pulleys have huge 1.5mm grubs and they come with an allen wrench!
You get enough pulleys and belt material to rebuild the whole thing if you need to for $20!!

http://www.amazon.com/gp/product/B0185D1OYY?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s00

Just an FYI.
Kent