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139QMB 139QMA Racing Secondary Final Drive Gears 17 49 Compatible with Automotive Motorcycle Parts ATM CY50 Evo Speed Thunder Zummer 50cc 4 Stroke in Saudi Arabia 139QMB 139QMA Racing Secondary Final Drive Gears 17 49 Compatible with Automotive Motorcycle Parts ATM CY50 Evo Speed Thunder Zummer 50cc 4 Stroke in Saudi Arabia 139QMB 139QMA Racing Secondary Final Drive Gears 17 49 Compatible with Automotive Motorcycle Parts ATM CY50 Evo Speed Thunder Zummer 50cc 4 Stroke in Saudi Arabia 139QMB 139QMA Racing Secondary Final Drive Gears 17 49 Compatible with Automotive Motorcycle Parts ATM CY50 Evo Speed Thunder Zummer 50cc 4 Stroke in Saudi Arabia 139QMB 139QMA Racing Secondary Final Drive Gears 17 49 Compatible with Automotive Motorcycle Parts ATM CY50 Evo Speed Thunder Zummer 50cc 4 Stroke in Saudi Arabia 139QMB 139QMA Racing Secondary Final Drive Gears 17 49 Compatible with Automotive Motorcycle Parts ATM CY50 Evo Speed Thunder Zummer 50cc 4 Stroke in Saudi Arabia

139QMB 139QMA Racing Secondary Final Drive Gears 17 49 Compatible with Automotive Motorcycle Parts ATM CY50 Evo Speed Thunder Zummer 50cc 4 Stroke

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Special Features

  • Model compatibility Designed for use with ATM CY50 Evo Speed Thunder Zummer 50cc 4 Stroke models proper fit and function
  • Replacement part type Racing Secondary or Final Drive Gears set includes both drive and driven gears for complete drivetrain upgrade
  • Gear specifications Features a 17 tooth front sprocket paired with a 49 tooth rear sprocket optimized for improved acceleration and track performance
  • Application purpose Ideal for riders seeking enhanced power delivery and responsive handling in racing or performance riding conditions
  • Direct installation Matches dimensions for straightforward replacement without the need for modifications or adjustments

Description

139QMB 139QMA Racing Secondary Final Drive Gears 17 49 For ATM CY50 Evo Speed Thunder Zummer 50cc 4 Stroke This gear set is designed for use with 139QMB and 139QMA engine models.It includes a 17-tooth drive gear and a 49-tooth driven gear, suitable for secondary or final drive applications.Compatible with ATM CY50 Evo, Speed Thunder, and Zummer 50cc 4-stroke.The gears are built to support performance use and provide power transmission.Installation requires standard mechanical tools and knowledge.proper alignment and chain tension during setup.

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