85 mm

NEW V4- now with 2 piece cylinder design for more power and better cooling! New Phantom 85 Features Include:52mm Bore, 40mm Stroke - Actual U.S. engine displacement: 85cc2 piece cylinder and head (Lower operating temps, increased rider weight capacity, improved power output across varied rpm range)High performance Speed carbCeramic lined cylinder (Significantly improves cylinder durability, reduces friction, lowers operating temps, increases performance)All new ultra-quiet exhaust pipeOversized exhaust portHigh performance CDI with Yamaha componentsPerformance magnetoHigh end allen boltsImproved gas cap ZTMOTO Phantom 85 Complete Engine Kit Includes:85cc v4 2 stroke engine with 2 piece cylinder and headCNC intakeNeedle bearing for piston wrist pinHigh performance Speed carbPerformance magnetoStainless steel allen boltsBetter balanced crankUpgraded bearings / 60% thicker crank case around bearingsStuffed crank caseLarge intake port (40mm bolt hole width)Oversized round exhaust port - 28mm diameter, 60mm stud spacing40mm crank stroke (more powerful, efficient, and reliable)Long rod (89mm)Larger 8mm x 1.25 engine mount studsApproximate engine dimensions: 9" x 9" x 5" Mounting Kit & Accessories Included:High performance CDI with Yamaha componentsBlack tear drop gas tank (2L) w/ new fuel cap, fuel valve, fuel filter, and fuel line415 Heavy duty chain with chain guardBall bearing chain tensionerUltra quiet muffler (Stainless steel with sound insulation cotton inside)Throttle assembly w/gooseneck style throttle cableTwist throttle and cable with matching grip and kill switchNew quick release clutch handleLarge front mount for bicycles that have large down tubesAvailable with 36, 44, or 48 tooth rear sprocketSpark plug socket tool and gear removal tool Fuel/Oil RatioNew Engine (<310 miles): 20:1After Break In: 25:1