XR750 Pics and Info

The Harley Davidson XR750

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1977 Harley Davidson XR750

The successor to the KR model, the XR750 dominated flat track racing from 1970 until the present. Producing 90 bhp @ 8,000 rpm, this model featured twin Mikuni carburetors and alloy cylinder heads. This bike was ridden by Grand National racer, Davey Durelle.

This picture and info courtesy of the Allen Vintage Motorcycle Museum
http://www.allenmuseum.com/

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1972 Harley Davidson XR750TT

As raced by George Roeder, this example of the famed XR750TT which dominated road racing in the United States, was restored by Herb Harris and Stan Gillis. The machine received "Best of Show" at the prestigious Del Mar Concours in 1995 and "Best of Show" at the Daytona Concours that same year.

This picture and info courtesy of the Allen Vintage Motorcycle Museum
http://www.allenmuseum.com/

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Yet another XR750TT

This alloy XR was spotted at Sears point

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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This is a 1970 XR750 ridden by national #73 Sid Carlson. This was at an outlaw 1/2 mile race in Nebraska. Note the non-factory megaphone exhaust.

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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Larry White's XR750 - Sturgis

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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Mark Brelsford's 1972 XR750

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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Nine time AMA National dirt track champion Scott Parker on his XR750 - San Jose mile-1998

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Another shot of Scott Parker on the mile track aboard his Factory XR75O

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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This 1972 Alloy XR750, ridden by amateur Chubby Armour of Denver Co., was one of the first alloy XR's to see track action after being released from HD Racing Dept. to their Dealers who had Racers w/credentials. If you were a Hotshoe you got some of the 1st ones released in the summer of 72

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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National # 73 Keith Ulicki changing gearing on his XR in 1981

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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Juniors (amateurs) at one time were required to have restrictor plates on their XRs which limited their Carb Venturi opening to 25 mm (1 inch). Picture circa 1980 - Sturgis S.D.

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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Mike Collins and his National #39 XR.

This is a good shot of the huge 38mm Mikuni Carbs. This was a mile track XR and a lot of the racers would run the larger 38mm carbs instead of the standard 36mm Mikunis. Mikuni Carbs worked flawlessly on the XR and made tuning much simpler in the intake dept. Case in point, Mike won both days at STURGIS 1/2 MILE with this bike.

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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This was an early example of Racers who started using the cast aluminum spoked wheels over the traditional laced spoke type. Circa 1981

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!
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"This bike converted Triumph racing legend Eddie Mulder and now he is on our (The Shop's) team riding it in all of
the vintage series races."

Picture and info courtesy of "The Shop" http://www.cycleshop.com

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Now this is a nice XR750!

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For more pics and info on this bike, go to Coy's home page and click on the XR750 link

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Steve Morehead National #42 aboard his XR750.

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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Current Grand National Champion Carr aboard his Factory XR.

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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Yes you are seeing right. Ronnie Rall had the heads on his alloy XR machined to have the Mikuni Carbs on the left side of the engine where normally you would see the exhaust pipes exiting.

Ronnie Rall was a well known veteran National DT Racer from Ohio who carried National #52 for many years.

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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A picture of Kevin Atherton (national #23) on his XR750. He had to wear that gizmo on his leg for months resulting from a disastrous crash at DuQuoin which took the life of fellow racer Davy Camlin. Atherton recovered enough to ride in the 2000 Springfield event but crashed after someone left oil on the track. Fortunately he wasn't hurt. He hopes to be able to compete in the 2001 season. Lets wish him luck.

Courtesy of Steve Matz - Billings, Mt. MATZ1949@aol.com Thanks Steve!

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