The truth is in the tooth! KARATA Rear Belt Drive Kits bring the latest belt drive technology to all Harley-Davidson Big Twins back to 1936. All of our rear drives feature Karata precision gear machine cut pulley teeth and Gates HTD Polychain belts. Kits include all the necessary hardware—and in some cases, special tools—for a fast and hassle-free installation. Special 4 and 5 speed assemblies are available on request.