The tail section and fiberglass seat, nicknamed “the boat-tail” was introduced for the 2nd and last year. The lineup transferred the distributor to the interior of the gear case, now using an automatic advance mechanism to help with the starting. 1971 Harley Sportsterġ971 was a special year for Sportsters, marking a transition from the 900cc to new engine cases. The engine was fueled by 70% nitro-methane and the pilot was renowned Harley Davidson rider Cal Rayborn, whose 265mph record speed lasted for 15 years! 4. There was a small cockpit inside with a customized XLR motor, stroked and bored to 1480cc. The streamliner featured a 15′-long aluminum body, with just 23 inches cross section. It is here, in 1970, that a Sportster-operated streamliner motorbike smashed the world speed record. The northwest Utah-based Bonneville Salt Flats have always been known for high speed competition. With the long frame, the seat post tubes were set 1 1/2 inches towards the back. The XLH kicked back the frame just above the arm pivot to support electric start as well as the new battery box. In 1970, all the XL models were fitted with the same engine cases. Between 19, two cases were made for the Sportster: one for the electric start bikes and the other for the kick-start models. The new model came with revised engine cases to incorporate electric start. 1967 Harley Sportster XLHīefore the 1967 XLH, all the previous models were kick-start only. Integrated within the back of the engine cases was a “unit” 4-speed transmission while the motor, which was almost hidden perfectly behind the gas tank, featured twin cylinder jugs separated by about 45 degrees. Individual valves were controlled by a separate cam to simplify the valve train geometry, while both the front and back cylinders were fed by a single carburetor. One crank pin was used for both connecting rods, and was called a “knife & fork” design. The Sportster legend began with the 1957 Harley XL Ironhead, featuring a new overhead valve motor that worked with a 3.81-inch stroke and a 3-inch bore to produce 883cc displacement.
Here are our picks for the top 10 Harley Davidson Sportster models ever (in no particular order). The lineup was received by the US motorcycle market affectionately. The design was conspicuously reminiscent of the dominating British motorcycles of the 1950’s, particularly the Triumph Thunderbird. The Sportster was one of the first Harley Davidson models to include a rear suspension and a high performance, overhead valve engine. Levels Of Modifications, After-Market Parts And Part Customizingīuilds & Modifications To Fit Nearly Any Budget.ĭesign.The introduction of the Harley Davidson Sportster into the American market in 1957 was more of a strategy to counter the increasingly successful British motorcycles being sold in the U.S. Ground Up Custom Builds - Customizing Stock Harleys - All Make Sure It Is Done Right The First Time. Mods, Custom Mid Shift Controls, Through Primary, Over Primary,įabrication Modification Manufacture - Stock Harley Customizing -Ĭovered With Highly Experienced Techs, Fabricators and Builders. Motorcycle Spoilers, Oil Tanks, Battery Boxes, Custom Headlight Motorcycle Frameįabrication, Modification, Custom Frame Mods, Frame and Neck Stretching, Necking,Ĭustom Exhausts, Custom Front Ends, Custom Handle Bars, Custom Motorcycle Neck Fabrication Modification. The Right Way!Ĭustom Fitting Frame Necks For Baggers, Bobbers, Choppers. We Can Fabricate & Mount Just About Anything. Modifications, Frame Stretching, Hard-Tailing. Hawg Custom Cycles Specializes In Custom Motorcycle Frame Hardtail Motorcycle Frame Modifications - Custom Hardtail Hardtail Motorcycle Frames Modifications, Hardtail Sportsters, Custom Motorcycle Frame Fabrication Has been fabricating and modifying Harley motorcycleįrames, making hardtail frames for decades.Īnother hardtail ready for pickup.
Motorcycle Fabrication Shop Iron Hawg Custom Cycles If you would like to badass your bike stop on in and let the sin begin!įabrication Modification - We Can Hardtail Anything! A few hours later had it stripped and snipped and I have her welded up and ready to dress. It's a good day to hardtail! Customer brought us a custom hardtail kit and a complete 88 evo Motorcycle Neck Modifications, Custom Motorcycle Frame Hardtailing Frames, Hardtail Sportsters Frames, Frame Fabrication Modifications - Iron Hawg CustomĬycles Specializes In Custom Motorcycle Frames,
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