Shop name: Chong Qing Shuo Yue Ke Ji You Xian Gong Si FEATURES: New, not remanufactured or refurbished, with no wear and tear. High-quality field coils provide strong performance for fast starts and reliable operation. Designed for dependable motor performance over extended periods. Engineered to match original specifications for individual vehicle power systems, allowing for quick installation. Color: Silver Material: Metal Suitable for: YZF-R1 R1 2004 2005 2006 2007 2008 Built to original equipment standards for seamless integration. New armatures are precision-manufactured and tested for long service life. Direct replacement for existing motor; simply install and use. Professional installation is highly recommended. Installation instructions are not included. SPECIFICATIONS: Condition: Aftermarket Fitment Type: Direct Replacement Surface Finish: Heavy Duty Part: UNIT Unit Type: Piece Number of Teeth: 9 Gear OD: 11.6mm / 0.46 in Gear Length: 18.8mm / 0.74 in Ear 1 Hole: 6.4mm Unthreaded Ear 2 Hole: 6.4mm Unthreaded Replacement Part Numbers: 5VY-81890-00, 5VY-81890-01, 4C8-81890-00, 4C8-81890-01 Package Contents: 1 x Motorcycle Motor Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3cm.