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A new transmission, with the primary drive sealed in an oil bath, was introduced for 1961. [ 4 ] The Topper H was introduced in 1961 (sold through 1965) with a new alloy cylinder head that increased the compression ratio to 8.0:1, a reusable foam air filter, and revisions to the cylinder ports and air intake tube.
The clutch in a manual-shift motorcycle transmission is typically an arrangement of plates stacked in alternating fashion, one geared on the inside to the engine and the next geared on the outside to the transmission input shaft. Whether wet (rotating in engine oil) or dry, the plates are squeezed together by springs, causing friction build up ...
The Tri Glide Ultra Classic is the first three-wheeled motorcycle produced by Harley-Davidson since the Harley-Davidson Servi-Car, which was manufactured from 1932 to 1973. [ 1 ] The Tri Glide is based on the Harley-Davidson Electra Glide Ultra Classic , a conventional two-wheeled touring motorcycle . [ 1 ]
The Harley-Davidson RL 45 is a model of the R-series range produced from 1932 to 1936, preceded by the DL range (1929–1931), which was Harley-Davidson's first 45 cubic-inch and first flathead V-twin motorcycle, and succeeded in 1937 by the WL. The R-series range included 45-solo, R, RL and RLD models.
By 1937, all Harley-Davidson flathead engines were equipped with dry-sump oil recirculation systems similar to the one introduced in the "Knucklehead" OHV engine. The revised 74 cubic inches (1,210 cm 3 ) V and VL models were renamed U and UL, the 80 cu in (1,300 cm 3 ) VH and VLH to be renamed UH and ULH, and the 45 cu in (740 cm 3 ) R to be ...
A derivative of the Revolution engine called the Revolution X was later used on the entry-level Harley-Davidson Street, first released in 2014. Unlike other Harley-Davidson production motorcycles, the VRSC's radiator and the hydroformed frame members support the round-topped air cleaner cover. The fuel tank on the V-Rod is located underneath ...
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With limited time and money in 1969, Harley-Davidson's racing manager Dick O'Brien and his team used elements of existing designs to put together a new OHV racer, but rather than start from scratch they decided to modify their existing OHV racer: the Sportster-based 900 cc (55 cu in) XLR magneto-equipped race engine with a 3.0000 in (7.620 cm ...