Naraku Variator Kit for 50cc 4-Stroke 139QMB Chinese Honda Cloned Scooters, Kymco, SYM INCLUDES: Variator Variator Back Plate Variator Pin Roller Weights COMPATIBILITY: Amigo – 50cc 4-Stroke Scooters Apollo – 50cc 4-Stroke Scooters Baotian – 50cc 4-Stroke Scooters Baron – 50cc 4-Stroke Scooters Bintelli – 50cc 4-Stroke Scooters BMS – 50cc 4-Stroke Scooters Coolster – 50cc 4-Stroke Scooters CSC – 50cc 4-Stroke Scooters Diamo – 50cc 4-Stroke Scooters Flyscooter – 50cc 4-Stroke Scooters Ice Bear – 50cc 4-Stroke Scooters Italica – 50cc 4-Stroke Scooters JCL – 50cc 4-Stroke Scooters Jonway – 50cc 4-Stroke Scooters Kandi – 50cc 4-Stroke Scooters Kinroad – 50cc 4-Stroke Scooters KMD – 50cc 4-Stroke Scooters Kymco – 50cc 4-Stroke Scooters Lance – 50cc 4-Stroke Scooters Leike – 50cc 4-Stroke Scooters Linhai – 50cc 4-Stroke Scooters Longbo – 50cc 4-Stroke Scooters Motobravo – 50cc 4-Stroke Scooters Motofino – 50cc 4-Stroke Scooters Motorino – 50cc 4-Stroke Scooters NST – 50cc 4-Stroke Scooters Peace – 50cc 4-Stroke Scooters Puma Cycles – 50cc 4-Stroke Scooters Redstreak – 50cc 4-Stroke Scooters Roketa – 50cc 4-Stroke Scooters Scootstar – 50cc 4-Stroke Scooters Schwinn – 50cc 4-Stroke Scooters SSR – 50cc 4-Stroke Scooters SUNL – 50cc 4-Stroke Scooters Supermach – 50cc 4-Stroke Scooters SYM – 50cc 4-Stroke Scooters Tank Sports – 50cc 4-Stroke Scooters TaoTao – 50cc 4-Stroke Scooters Trailmaster – 50cc 4-Stroke Scooters Veloz – 50cc 4-Stroke Scooters Verucci – 50cc 4-Stroke Scooters Vitacci – 50cc 4-Stroke Scooters Viva – 50cc 4-Stroke Scooters Wolf – 50cc 4-Stroke Scooters Xingyue – 50cc 4-Stroke Scooters ZNEN – 50cc 4-Stroke Scooters NARAKU Race Variator 139QMB and KYMCO 50cc 4T models. RP-NK900.81 variator – vario kit Naraku sport – GY6, Kymco 50cc 4-stroke. This model comes with 6 gram 16 X 13 rollers which work better on all Kymco 4T Vitality, Agility, Filly, People 50 4T, Super 8 50cc 4T, models. Suitable for GY6 and Kymco 50cc 4-stroke engines. Matched this variator provides good acceleration at higher top speed. The barrier at 45km / h is repealed and the roller rotates in the original state up to about 70km / h. The set comes with 16x13mm 6g vario Mati pulleys in the dimensions, these weights are suitable for scooters, which are largely in their original condition. Should already be installed other tuning components (eg exhaust system back pressure, or spring), we recommend that you tune your scooter with new lighter pulleys Vario Mati. Various tuning set and 16x13mm vario rolls are also found in our program. Item Nr.: NK900.81 EAN/UPC: 4250362419392 Note: Please make sure this scooter engine part fits your particular scooter model. Many scooters have the same name but use different engine parts depending on the year of manufacture. nother advantage for tuners without much experience is the fact that the Naraku HS variators come already pre-adjusted. This version comes ready to install for all standard 50cc engines without modifications. Using a stronger torque spring is not recommendable for 50cc engines without further tuning. However, if other tuning parts are used, a new setup may be required. Included in the delivery are the complete variator, open variator bushing with speed control washer as well as a set of variator rollers (16 x 13mm) suitable for 50cc original cylinders. Note: Please make sure this scooter engine part fits your particular scooter model. Many scooters have the same name but use different engine parts depending on the year of manufacture. **