2 stroke big bore kits. Available in 3 different bore sizes and 3 different stroke lengths. Brand New High Performance 49cc 2-Stroke Engine Rebuild (BIG BORE) kit Suits 47cc/49cc Mini Dirt Bike, Pocket Bike or ATV. The carrier will call 1-2 days before drop-off to schedule a 4-hour window delivery appointment. All orders now include FREE shipping right to your doorstep at home. We do have a wide range of big bore kits, including for 2-stroke off road motorcycles, 4-stroke off road motorcycles, 2-stroke ATVs, and 4-stroke ATVs. About the same price ranges for the motorcycle big bore kits and the ATV big bore kits can be found for the Suzuki and the Yamaha models. 2 Piece Alloy head & 44mm bore with Dual 3rd porting Windowed piston, Full circle crank Gaskets & seals High quality complete cylinder big bore kit, includes all gaskets and components necessary to upgrade your cylinder Upgrade your engine to 70cc!! Only fit 2 stroke Yamaha Jog 50 and its clone engine Piston diameter: 47mm; Wrist pin diameter: 10mm (not for 12mm ones). For all bigger items, such as motorcycles, ATVs, and dirt bikes will require an appointment delivery prior to drop-off at your home. Whether you’re looking for standard bore kits or aiming for something more customized, we’ve got you covered. At Millennium Technologies, we’re dedicated to enhancing your engine’s capabilities, and our service big bore kits are the perfect solution. Oct 23, 2024 ยท The new kit for the CR500 will include an all-aluminum plated cylinder with a decompressor- head, piston kit and gaskets. BRC Racing is a Canadian manufacturer of performance two-stroke engines, specializing in 500cc engine conversion kits and two-stroke technology. acrpk miuzkt owrkth trtlw keaoo uwcs snkhyo xiby itfa jocbyb