We carry a huge inventory of 2-stroke and 4-stroke bicycle engine kit parts and performance upgrades at bikeberryshop.com. Browse through our huge selection of bicycle gas engine parts for your 38cc, 48cc, and 66/80cc bicycle engine kit. Better yet, super charge your motorized bike kit with any number of performance parts from BBR Tuning, HuffyDavidson, NGK, and more! Whatever you need for your 2-stroke or 4-stroke motorized bike engine to get it up, running, and flying faster than ever before you can find here.