Harley Davidson Xr 750 Engine

If we ever run out of ideas and succumb at EXIF you can guarantee that the Harley-Davidson XR750 flat tracker will be in our list.

Harley davidson xr 750 engine. XR750 Specs Using the bottom end of the Sportster XLR motor Harley engineers achieved the desired 750cc displacement by decreasing stroke length from 381 to 2983 ad increasing the bore. The AMA approved the Harley-Davidson XR-750 an updated version of the XR for Class C competition on April 12 1972. Also these special frames and XR-750 engines are not built to withstand many miles when ridden on pavement.

The engine was mated with a factory rolling chassis provided by High Speed Motors run by John Steele the. And wed lament that it was never street legal. CC by 20 Wiki Commons HD XR750 Performance.

This period was when Harleys XR-750 became the OffyCosworthHemi of motorcycle racing. Interestingly current well-tuned XR engines are giving over 90 hp which is not bad for a two-valve 750. This was more than enough to reintroduce Harley Davidson as a serious competitor in AMA racing and then later on to dominate it.

The Harley-Davidson XR750 A History Speed Run. So this streetable XR750 from Brad Peterson is right up our er street. In fact its the winningest production racebike in history.

Photo courtesy Todd Horner from Lethbridge Canada. 5 hours ago This XR750 has been autographed by the legends of Harley Davidson flat track racing Scott Parker Jay Springsteen Roeders all 3 Bill Werner Joe Koop and Carl Patrick. And its no replica or.

With the KR750 now at a disadvantage Harley-Davidson swapped the side-valve KR motor for a de-stroked XL Sportster engine and the KR750 became the XR750. Show any 1970 Harley-Davidson XR 750 for sale on our Bikezbiz Motorcycle Classifieds. Model Harley-Davidson XR750 Year 1972-1980 Engine 45 Degree V-twin Aluminum Barrels OHV Bore and Stroke 3125 X 298 Inches Displacement 45 Cubic Inches 750cc Brake Horsepower 90 Transmission 4 Speeds Wheelbase 5675 Inches Weight 295 Pounds Wheels 19 Inches Tires 400 x 19 Brakes Rear Disk.