RJD Spare Battery Holder Kit for Stacyc 12e/16e
Directly fits onto Stacyc 12e and 16e bikes. Easy mounting and no major modification.
Instead of walking around the track with a big awkward battery or carrying it in a bag when you are far from your truck just swap it and keep the ride going. I made this out of necessity for the 5 mile trail system we ride primarily and for when he rides the Stacyc at the MX track. The added battery weight is directly in the center of the bike and doesn't affect the ride by any visible amount. When the battery is removed the holder is negligible in weight (2.4oz). Printed to perfection using high quality ASA (same material as OEM plastics) this part has extreme UV, heat, weather, and impact resistance just like the RJD foot pegs. 

INSTALLATION:
 Required tools - Phillips head screw driver, side cutters, 7/64 drill bit (recommended)
All required parts included
Screws - #8 x 1/2" Phillips Head
Zip Tie - 8" long x 0.19" wide