{"title":"transmission parts 4 speed","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFour gears, kick starter, and that raw, mechanical feel that gave old Harley-Davidson motorcycles their soul – before technology overcomplicated things. The 4-speed transmission is the basis of classic Shovelhead and earlier Harley-Davidson motorcycles, as well as many vintage custom builds. It's a simple, robust construction that generations of mechanics and riders know inside and out – but it's precisely this simplicity that makes it especially important for all internal components to be precise and in good condition, as these old systems have no electronic fine-tuning, only pure mechanics. In our offer, you will find 4-speed transmission parts for Harley-Davidson and classic custom motorcycles: gears, shift shafts, bearings, shift forks, shifter components, gaskets, and other internal parts. Factory-spec, period-correct replacement parts are available, ideal for restoration projects and preserving the original character of classic motorcycles. The quality parts are precisely manufactured from durable materials to reliably withstand continuous use, even in decades-old engines. Whether you are restoring a classic Harley-Davidson or repairing a transmission as part of an old-school custom project, you will find the parts that exactly fit your 4-speed transmission with us.\u003c\/p\u003e","products":[{"product_id":"close-ratio-valto-4-sebesseg-sullyeszetts-41-51-wl","title":"close ratio transmission 4 speed flatheads - 41-51 WL","description":"\u003cp\u003e4-SPEED 'CLOSE-RATIO' TRANSMISSION FOR 750CC FLATHEADS\u003c\/p\u003e\u003cp\u003eIdentical appearance to the stock 3-speed transmission. 1, 2, 3 are smaller and 4th gear is identical to OEM ratio. We all know that the power band of 45\" side valve engines is not all that wide and torque not that great. The original 3-speed transmission can, especially when accelerating up-hill with a sidecar, or cruising at a certain speed, give you the feeling that you'd like an extra gear to smooth things out. Especially shifting from 1st. to 2nd. is quite large and can result in a large RPM drop that takes you outside the ideal RPM\/torque range. This transmission comes with a bit smaller 1st., 2nd. and 3rd. 'close-ratio' gears but the 4th gear has the identical 1:1 gear ratio as the original 3-speed transmission. The only thing that will give the transformation to 4-speed away is the 4-speed shifter gate, which must be ordered separately. Transmission is fully assembled and ready to run. Just add oil after installation, invite your mother in law and take to the hills with confidence! Stock 3-speed ratios are: 1st = 2.47:1, 2nd. = 1.57:1, 3rd. = 1:1. This 'close-ratio' 4-speed transmission ratios are: 1st. = 2.67:1, 2nd. = 2.03:1, 3rd. = 1.42:1, 4th. = 1:1. Note: A 4-speed shifter gate must be ordered separately and is available as 909605 (chrome) and 909073 (black).\u003c\/p\u003e\u003cp\u003eFits: 41-51 WL \u003c\/p\u003e","brand":"SAMWEL","offers":[{"title":"Default Title","offer_id":57690817331532,"sku":"904891","price":3110.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1043\/4881\/1596\/files\/c02ab4_5b98043aceaa467f843ef701efae66b0_mv2.jpg?v=1780414535"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1043\/4881\/1596\/collections\/c02ab4_6ba2cb47fbf2405cb221d1418f6e2824_mv2.png?v=1781475691","url":"https:\/\/bobber.center\/collections\/motorcycle-transmission-parts-4-speed.oembed","provider":"bobber.center","version":"1.0","type":"link"}