Check the listing for details. Cruzin Cooler Upgrades-24v 300 Watt to 36v 800 Watt Conversion Kit!. Condition: New. Listed at 299.00 USD. Now comes with a new HD 41 1/2 link chain for 50 series only! Fast Scooters makes them fast and last.Waiting on controllers We also just got in 2 more of the 500 watt motors that everyone has been waiting for!..We only have 2,keep a eye out for them too..They are used to upgrade your existing 300 watt performance kits with no need to change anything besides the motor!..They are also used to change out 300 watts to 500 watts by simply replacing the motor and controller. Not available anywhere! 2 kits available until we get more stock,these sell FAST.. This is a conversion kit to transfer your 300 watt cooler to the 36 volt 750 watt..Let me explain this kit some.. This is a 36 volt 750 watt which will be super fast,speed of up to 18-20 mph, and a ton of torque.You will need to have 3 batteries in total for this to work,3,all fit in the back motor area to the left of the motor with one standing and 2 laying down on top of each other,we use a thick bead of heat temp silicone to keep them all in place.. Kit includes.. 1 new 36v 750 watt motor with bracket-your cooler will have to be torn apart,axle removed, rivets removed and replaced and such but it comes with directions.. 1 new 12v 12 ah Duaracell Ultras Best Battery ( If you want the other 2 Duracell the item number is eBay item number:135157566764..There is no shipping discount being they ship separate. 1-36 volt Pro Read throttle with matching grip 1-36 volt upgraded charger 1-Fast scooters performance 36 volt controller 1-new HD chain with half link installed 1-Xtra long 10 gauge wire, enough to custom cut each one to fit nice. 1-heavy duty breaker switch Modified screwdriver,motor mounting hardware,Spade wire ends,butt connectors,controller mounting screws,rivets,zip ties and tape.. This kit requires some skill and time to install but if you need help just call.. Pics for install above-Written directions includedNow comes with a new HD 41 1/2 link chain for 50 series only! Fast Scooters makes them fast and last.Waiting on controllers We also just got in 2 more of the 500 watt motors that everyone has been waiting for!..We only have 2,keep a eye out for them too..They are used to upgrade your existing 300 watt performance kits with no need to change anything besides the motor!..They are also used to change out 300 watts to 500 watts by simply replacing the motor and controller. Not available anywhere! 2 kits available until we get more stock,these sell FAST.. This is a conversion kit to transfer your 300 watt cooler to the 36 volt 750 watt..Let me explain this kit some.. This is a 36 volt 750 watt which will be super fast,speed of up to 18-20 mph, and a ton of torque.You will need to have 3 batteries in total for this to work,3,all fit in the back motor area to the left of the motor with one standing and 2 laying down on top of each other,we use a thick bead of heat temp silicone to keep them all in place.. Kit includes.. 1 new 36v 750 watt motor with bracket-your cooler will have to be torn apart,axle removed, rivets removed and replaced and such but it comes with directions.. 1 new 12v 12 ah Duaracell Ultras Best Battery ( If you want the other 2 Duracell the item number is eBay item number:135157566764..There is no shipping discount being they ship separate. 1-36 volt Pro Read throttle with matching grip 1-36 volt upgraded charger 1-Fast scooters performance 36 volt controller 1-new HD chain with half link installed 1-Xtra long 10 gauge wire, enough to custom cut each one to fit nice. 1-heavy duty breaker switch Modified screwdriver,motor mounting hardware,Spade wire ends,butt connectors,controller mounting screws,rivets,zip ties and tape.. This kit requires some skill and time to install but if you need help just call.. Pics for install above-Written directions included