FYI, the outside width of the box is 3.75" with a usable interior width of 3". The frame is powder coated aluminum, the side covers are ABS textured plastic. This close up photo shows covers made of expanded PVC sheeting rather than the textured ABS that I settled on, nor does it show the three screws that attach the sides. The photos of the three bikes shows the final version of the cases. Stay tuned.
Hi guys. Yes, the battery boxes are quite the nice feature for the Tidalforce bikes. I'm packing them with 48V 10AH LiPo cells from Tenergy. I'm not able to sell any of the boxes with or without batteries right now; I've only got enough for the remaining frames I have. Owing to the interest that these postings have stimulated, I'm going to look into having a quantity of additional boxes and covers made. Once I have the pricing details worked out I will post them here.