Showing posts with label Dave Roper. Show all posts
Showing posts with label Dave Roper. Show all posts

Monday, August 1, 2011

Team Obsolete Harley-Davidson XRTT Mid Ohio 2011

The Brooklyn based Team Obsolete may be best known for it's stunning MV Agusta collection, but there's a deep affection for Harley-Davidson racers too. Owner Rob Iannucci has one of the best collections in the world, including the ex-Cal Rayborn XR-750 machine that was brought out last year with Cal's son to lay down some parade laps on.

This year, it was back to business with TO regular rider Dave Roper, one of the fastest, most consistent winners on the vintage scene for the last couple of decades. But every now and then, even an experienced pilot like Dave can get caught out. Turn one at Mid Ohio is no joke. It's a blind apex left hand turn under the bridge at the end of the short front straight. Overnight rain had left the traction level dicey during the brief practice session Sunday morning.  Dave had a low-side get off that he was able to walk away from and the bike was only lightly damaged.




Roper saw to it to amend the sign that was hastily tacked on the team's George Beale built Bennelli 350/4 replica when that machine also was damaged earlier in the weekend.  A race  fan knocked the bike off it's stand in the pits. Ouch !

" Cheep !  1975 Harley 909 XRTT for sale" proclaimed the sign.  It helps to have a sense of humor about these things.

Within an hours time the team was hard at work, getting the machine ready again for the next race.




 What a brutish bike it is ! Jam packed with that booming V-Twin and  a couple of enormous carbs hanging off the side. The other side sports two equally massive exhaust pipes up high for exceptional ground clearance.   

The KR and the XR series of Harley-Davidson road racers are as American as it gets and proved their worth during their time in the late 1960's and 1970's. They are desirable and highly sought after collectibles too.


Thursday, March 10, 2011

Dondolino Debut - Classic Moto Guzzi Racing in USA

  A joyful Dave Roper fills in John Cronshaw on the details of his "new" 1946 Moto Guzzi Dondolino.  The bike would  make its classic racing debut in the capable hands of Mr. Roper the next day at the opening round of the AHRMA classic racing series. In the second day of racing, Dave grabbed the holeshot and led for several laps before being overtaken by Alex McLean on the McKeever Champagne Racing SRS Norton Special, a bike with hundreds of classic racing victories.


Don't let the age fool you, these bikes had many 'state of the art' features.
Check out those magnesium hubs front and rear. These bikes also run a girder front fork as good telescopic forks suspension did not rival the performance of the proven girder design yet.


This Guzzi may actually pre-date WWII and was likely a Condor model built to Dondolino specs. Lovely details typical of the Italian bikes of that era like the exposed flywheel.

Seeing and hearing a Dondolino Guzzi racing here in the USA is a rare event.
It was a sensory delight for Italian bike lovers.


Another interesting feature is the  parallelogram rear suspension similar to the Gilera Saturno design.


Heel and Toe right side shifter and tach drive above it and a Magnetti Marelli magneto.


Interesting fuel tank design and of course, the obligatory exposed hairpin valve springs on the front of the single cylinder engine. This is a push rod engine running thru a muffler which still rivals a Norton Manx for loudness.

click this link to see and hear this Moto Guzzi in action on the dyno last week in preparation for this race




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