Tuesday, June 09, 2009

Ironhead revenge



History is definitely on the side of the mighty Sportster. It's the lightest, sleekest, and inch-for-inch the powerhouse of the extensive Harley-Davidson history. Unveiled in 1957, the unit construction mill with trapdoor gearbox was the evolution of the K-models that ripped up the street and strip. A major innovation of the XL motor was the inclusion of overhead valves and the addition of the iconoclastic Shovelhead-style rocker-arm covers. Retained from the K were the four-cam configuration and transmission cavity cast into the crankcase. The quad-cam arrangement meant better valve control through reduced pushrod angles, and the one-piece motor/tranny case made the combo lighter and more rigid than a Big Twin.

( source from streetchoppers )

6 comments:

wra said...

XL POR VIDA...nuff said!!

Daddy Frisco said...

if these were chicks, i'd date them! love the top one, wheels reminds me of my old E36 Beemer with BBS rims!

rizky mandra said...

damn, i miss mine back at home... hopefully the not so ugly duckling would turn out a gracefull swan when i got back...

revdeckster said...

yeah all. i miss ridin' my ol MALTESEHEAD too....

dC said...

ok... i gotta get my ass moving on hunting one down... last one no deal =/

nicholai said...
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