Gear Set 1st 17/31T 5KE (F) $ 420.00 SKU: GEAR SET 1ST F Back to: Transmission & Driveline ×Close Yamaha Yamaha is a leader in businesses ranging from musical instruments and audio & video products to information technology products, new media services, home furnishings, auto components, specialty metals, music education and resort facilities. http://www.global.yamaha.com/ Description Race kit option 1st gear set F 17/31T Ratio: 1.824 Yamaha part numbers: OWK8-17411-F0 & OWK8-17211-F0 It will suit all of the 5KE engines.