Before order... 350W and 500W kits already include a thumb throttle by default.If you are looking at 250W Geeko kits and also want a thumb throttle, you can add this to your cart.If you already have a 250W Geeko kit and now want a thumb throttle, you can also purchase this but you will need to pay for shipping, usually $20-25. Accessories Pre-installation/Post-installation If Geeko kit and accessories you purchased were sent from China, usually we have already installed the accessories for you, you just need to connect the cable for the accessory. If Geeko kit and accessories were sent from EU warehouse, or you have been using the Geeko kit for some time and want to extend the accessories for the Geeko, such as head light, rear light, handlebar display, or phone holder with USB charger. In the above cases, you need to extend the cables for the Geeko bracket controller by yourself. Don’t worry, this job is easy. Expand Accessories Myself