CIF Primary Sprocket, 65 Teeth – Vespa PX200 and Rally200
The CIF primary sprocket with 65 teeth is designed for the helical-toothed primary drive of the Vespa PX200 and Rally200. It serves as a replacement for a worn or damaged original primary sprocket and can be combined with a helical-toothed clutch pinion compatible with the 65-tooth primary sprocket.
- Manufacturer: CIF
- Primary sprocket: 65 teeth
- Toothing: helical
- Compatible with Vespa PX200 and Rally200
- For stock and compatible primary drives
Original PX200 gear ratio
The classic combination for the PX200 and Rally200 uses a 23-tooth clutch pinion with the 65-tooth primary sprocket. This results in a primary gear ratio of 23/65, or 2.83. Thus, the primary sprocket corresponds to the stock gear ratio configuration of these 200-cm³ large-frame engines.
For Overhauling the Primary Drive
The large primary sprocket is part of the spring-loaded primary drive on the auxiliary shaft. During an engine or transmission overhaul, the sprocket should be inspected for wear, damaged tooth flanks, and excessive play.
If the primary sprocket is replaced, it is recommended to simultaneously inspect the condition of the primary springs, cover plates, and mounting hardware. This allows the entire primary drive to be properly overhauled in a single operation.
Compatible with
- Vespa Rally200
- Vespa PX200
- Vespa P200E / PX200 E
- Vespa PX200 Lusso
Note: The primary sprocket has helical teeth. The clutch pinion used must match the 65-tooth primary sprocket in terms of tooth count and tooth profile. The corresponding 65-tooth version is used on the PX200 and Rally200.
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