{"product_id":"4-speed-transmission-in-3-speed-case-for-harley-davidson","title":"4-Speed Close-Ratio Transmission for 750cc Flathead Engines for Harley-Davidson","description":"\u003cp\u003e Identical in appearance to the stock 3-speed transmission. 1, 2, and 3 are smaller, and 4th gear is identical to the OEM ratio.\u003cbr\u003e We all know that the power band of 45\" sidevalve engines isn't as wide and the torque isn't as good.\u003cbr\u003e The stock 3-speed transmission can, especially when accelerating uphill with a sidecar or while driving at speed, give you the feeling that you'd like an extra gear to smooth things out.\u003cbr\u003e Especially the shift from 1st to 2nd is quite large and can result in a large RPM drop that takes you out of the ideal RPM\/torque range. \u003cbr\u003eThis transmission comes with slightly smaller \"close ratio\" 1st, 2nd, and 3rd gears, but 4th gear has the same 1:1 gear ratio as the stock 3-speed transmission.\u003cbr\u003e The only thing that will give the conversion to 4-speed is the 4-speed shift gate, which must be ordered separately.\u003cbr\u003e The transmission is fully assembled and ready to operate.\u003cbr\u003e Just add oil after installation, invite your mother-in-law over, and hit the hills with confidence!\u003cbr\u003e The stock 3-speed ratios are: 1st = 2.47:1, 2nd = 1.57:1, 3rd = 1:1.\u003cbr\u003e The \"close ratio\" 4-speed gear ratios are: 1st = 2.67:1, 2nd = 2.03:1, 3rd = 1.42:1, 4th = 1:1.\u003cbr\u003e Note: A 4-speed shift gate must be ordered separately and is available as 909605 (chrome) and 909073 (black).\u003c\/p\u003e\n\n\u003cp\u003e Compatible with: \u0026gt; 41-51 WL\u003c\/p\u003e","brand":"Samwel","offers":[{"title":"Default Title","offer_id":23050227810389,"sku":"MC904891","price":3249.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1606\/2595\/products\/904891k.jpg?v=1571314584","url":"https:\/\/california-motorcycles.com\/en\/products\/4-speed-transmission-in-3-speed-case-for-harley-davidson","provider":"California Motorcycles","version":"1.0","type":"link"}