I am listing this Cannondale Jekyll 400 as used since it was working perfectly the last time I rode it, which was before it sat unused for a period of time causing the battery to discharge, becoming inoperable. Since I don’t have a working battery to test the bike, I am declaring the bike as nonworking. I assume all the bike needs is a new battery and everything will work as it should, but I unfortunately have no way to test it. Therefore again I emphasize nonworking. Everything does work properly on the bicycle side of it except the lock-out does not work on the front shock…I just have no way to test the electrical side of it. When I purchased a medium size used 2004 Cannondale Jekyl full suspension MTB frame with Headshok fork in early 2009, I modified my Heinzman electric bike conversion kit having a 500W geared hub motor, by building a battery and controller enclosure and mounting it underneath the frames top tube to balance the bike comfortably. I had purchased the German made Heinzmann kit in 2006 and originally installed it on a hardtail frame where the battery and controller were mounted on a luggage style rack above the rear wheel. It worked really well but it was rather unbalanced with too much weight at the rear of the bike. For this reason as well as my desire to have full suspension, guided me to upgrade the frame. In case you have never heard of Heinzman, they were the leader and industry standard in bicycle hub motors for many years prior to the Chinese market take over causing super popularity. Heinzmann is known for its high-quality German engineering and producing bulletproof DC hub motors. I also used high-quality/high-end components in this build to keep the weight down and keep the performance level up with an emphasis on comfort. Heavy duty Mavic ceramic rims and Avid Ultimate v-brakes provide excellent braking for the rear wheel even while wet. There is a ceramic rim on the front wheel also but I used disc brakes up front. The complete bike weighs 53 pounds. I built the battery and controller enclosure mainly out of aluminum and it houses the standard 36 V Heinzman NiCad battery pack. In front of the battery pack, within the enclosure, the Semifusion controller is mounted to a heat sink for cooling purposes. The Semifusion controller is an upgrade from the standard Heinzman controller that typically comes with these kits and requires a 40 amp fuse as opposed to a 30 amp fuse needed for the standard Heinzman controller. I purchased the kit from LEVT(Light Electrical Vehicles Technologies) located in Pocatello, Idaho. They are the US dealer for Heinzman international. Heinzmann produced several different hub motors and kits with different voltages, gearing and specifications. You would choose which motor and other components you desired for your kit. The Heinzman hub motor contained in this kit is known as  their “City” 500W motor that runs at 268 RPM at 36 V. This propels the bike without assist to around 23 mph which is fairly quick for a bicycle. Much higher speeds can easily be obtained by pedaling while also using the motor. The upgraded controller supplied in the kit produced increased acceleration and performance over the standard controller. I purchased a spare new controller with the kit in the event of a failure but I never needed to use it. The spare Semifusion controller is included in the listing. I used the bike mainly riding around my small coastal town and on occasional trails while I generally used it in a pedal-assist role. The NiCad battery in the enclosure is inoperable due to non-use and is completely dead and the cells will need to be replaced. Lithium batteries were not main stream back in those days but would make an excellent option currently for battery replacement as they  are now much more lightweight and compact than nicad. The bike currently weighs 53 pounds with the NiCad battery but would be a few pounds less if you used a lithium battery. You could keep it old school and have a new NiCad battery made to replace the worn out one if you wanted. Included is the original Heinzman battery charger which plugs into an XLR fitting on the backside of the battery enclosure. The wires you see protruding from the lower portion of the enclosure consist of a main positive disconnect and a fuse holder. These parts tuck away into the enclosure during use but I would expose them and disconnect them during charging for additional safety. I am also including with the bike: the wiring diagram and other documentation/receipts and paperwork as well as the spare controller. I will ship this bike in two packages, one containing the wheel set and one containing the frame set. Therefore you must  message me for a shipping quote as the shipping calculator within the listing is always overpriced and incorrect. The shipping calculator also reflects only one of the two packages that will be shipped, so please contact me for a shipping quote. The shipping quote will definitely save you lots of money on delivery.  Please look at all the photos as they are part of the description. Additional photos are available upon your request. Please ask all questions before purchasing. Your feedback is very important to me! Please contact me if you have any concerns prior to leaving negative feedback. I will happily work with you and correct any error I may have made. Thank you, Mike