85cc V3 - 85cc 52mm Bore Shadow Complete Motorized Bicycle

**Engine Specifications:**

- **Displacement:** 85cc with a 52mm bore and 40mm stroke

- **Cylinder & Head:** One-piece design for improved power output, lower operating temperatures, and increased rider weight capacity

- **Carburetor:** High-performance Speed carburetor for enhanced fuel delivery

- **Reed Valve:** Controls air-fuel mixture for optimized performance

- **Cylinder Lining:** Ceramic lining for durability, reduced friction, and lower operating temperatures

- **Exhaust:** New ultra-quiet exhaust pipe with an oversized exhaust port

- **Ignition System:** High-performance CDI using Yamaha components, paired with a performance magneto

- **Fasteners:** Equipped with high-end stainless steel Allen bolts for added durability

- **Additional Features:** Includes an improved gas cap.

**Complete Engine Kit Includes:**

- **Engine:** 85cc 2-stroke engine with integrated cylinder and head

- **Reed Valve Intake:** Enhances air intake efficiency

- **Bearings:** Upgraded needle bearing for piston wrist pin and thicker crankcase with reinforced bearings

- **Crankshaft:** Balanced crank with a stuffed crankcase, featuring a 40mm crank stroke for better power, efficiency, and reliability

- **Piston:** Double window piston paired with a long 89mm rod

- **Ports:** Large intake port with a 40mm bolt hole width and an oversized round exhaust port (28mm diameter, 60mm stud spacing)

- **Mounting Studs:** Engine comes with larger 8mm x 1.25 engine mount studs

- **Dimensions:** Engine measures approximately 9" x 9" x 5"

**Mounting Kit & Accessories:**

- **Ignition System:** High-performance CDI with Yamaha components

- **Fuel Tank:** 2L black tear-drop gas tank, complete with a new fuel cap, fuel valve, fuel filter, and fuel line

- **Chain:** Heavy-duty 415 chain with an included chain guard just like phantom 85

- **Chain Tensioner:** Ball bearing chain tensioner for smooth operation

- **Muffler:** Ultra-quiet stainless steel muffler with sound insulation cotton inside

Compare with: Phantom 85 motorized bike kit

- **Throttle Assembly:** Includes a gooseneck-style throttle cable, twist throttle, matching grip, and kill switch

- **Clutch Handle:** Quick-release clutch handle for easy operation

- **Mounting Options:** Large front mount to accommodate bicycles with large down tubes

- **Sprocket Options:** Available with 36, 44, or 48 tooth rear sprocket

- **Tools Included:** Spark plug socket tool and gear removal tool

**Fuel/Oil Ratio:**

- **Break-In Period (First 310 miles):** 20:1

- **Post Break-In:** 25:1

Requires top end assembly, takes about 15 to 20 minutes, no mechanical experience required. Simply slide piston partially out of cylinder, insert piston bearing and wrist pin, insert piston clips, and slide cylinder down and bolt on cylinder with four nuts.