Stage6 Cylinder R/T 47.6mm 70cc Aluminum LC Kit Horizontal (Aprilia, JOG, Zuma 50)
Description: Stage6 Cylinder R/T 47.6mm 70cc Aluminum LC Kit Horizontal for Aprilia, JOG, Zuma 50, and many other 50cc Minarelli Horizontal base engines. The cylinder that has been breaking records! It set new best times in the Italian Open Cup and also broke the 6-second barrier in scooter drag racing. Regarding transfer port layout, Stage6 has maintained GP standards, refraining from cross-section reducing 7- or 8-port designs. After all, "more" isn't necessarily "better". The 47.6 mm bore conforms to the rules of most 70 cc racing classes. The patented modular construction allows for quickly mounting the cylinder to different engines using adaptors. Sealing between adaptor plate and cylinder is realized via a Viton O-ring; this makes the tedious cleaning of sealing surfaces and replacing gaskets unnecessary. Once the adaptor plate has been mounted and adjusted via gaskets, it won't have to be readjusted later. The CNC-milled adaptor plate bolts to the engine case and accepts the cylinder via the external studs. The construction of the R/T 70cc cylinder doesn't use any continuous studs, so the design of exhaust and transfer ports isn't subject to the restrictions that conventional racing cylinders face, and further tuning and porting reserves are available. Particular attention has been paid to the cylinder's thermal properties. The CNC-milled inner cylinder head is bolted at five points, each of them thermally stabilized by its own cooling pocket. Thus the critical areas at the studs that tend to lead to piston seizures have been eliminated. Attention: In order to be able to install the cylinder, it is necessary to open up the crankcase to 56.7 mm.
Specifications:
Includes the following Cylinder, Base gasket, Piston, Rings, Piston pin, Circlips, Cylinder head, Head gasket, Exhaust gasket, Exhaust studs, and Intake studs.
1. Includes Cylinder 47.6mm, Piston + Rings, Gaskets (base gasket, steelhead gasket), Wrist pin, and Circlips.
• 1x Cast-Alumin Piston: 47.6mm
• 1x Piston Rings: 47.6mm
• 1x Wrist Pin w/G-clips: mm x mm x mm
• 1x Cast-Iron Cylinder: 47.6mm
• Outer Sleeve Diameter: mm
• Overall Height (w/sleeve): 85mm
• Cylinder Height (w/o sleeve): mm
2. Includes Cylinder Head 47.6mm, Valve Assembly.
• 1x Cylinder Head Stud Space: 47.6mm / H: mm / Intake Port: mm / Exhaust Port: mm
• Overall Height (w/valves) H: mm
• Cylinder Height (w/o valves): mm
• 2x Intake Studs
• 2x Exhaust Studs
• Made in Italy
• Fit Aprilia 50
• Fit JOG 50
• Fit Zuma 50
Supported Models: Aprilia Amico 50, Aprilia Area 51, Aprilia Gulliver 50 AC, Aprilia Rally 50 AC, Aprilia SR 50 AC, Aprilia Scarabeo 50, Aprilia Sonic 50 AC, Benelli 491 GT 50, Benelli 491 RR 50, Benelli 491 ST 50, Benelli 491 Sport 50, Benelli K2 50, Benelli Naked 50, Benelli Pepe 50, Beta Ark 50 AC, Beta Ark 50 LC, Beta Chrono 50, Beta Eikon 50, Beta Quadra 50, Beta Tempo 50, Buffalo Fox 50, Buffalo Rex 50, Buffalo Wind 50, Italjet Dragster 50, KTM Ark 50, Kreidler Florett 50, MBK Booster 50, MBK Flipper 50, F10 50 Jetline, Malaguti F12 Phantom 50 AC, Motobi Pesaro 50, Motowell Magnet RS 50, Rex (Jinan Qingqi) Escape 50, Streak Access 50, Yamaha Aerox 50, Yamaha BWS 50, Yamaha Jog 50, Yamaha Zuma 50 and virtually any other scooter engine with these measurements.
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Item Weight & Product Dimensions:
• 1.456 Pounds | 4.567" (L) x 4.275" (W) x 2.776" (H)
• 2.193 Pounds | 5.227" (L) x 5.323" (W) x 2.598" (H)