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PostPosted: Tue Oct 04, 2011 9:01 am 
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Joined: Thu Jun 09, 2011 12:52 am
Posts: 360
Location: London, UK
Walms wrote:
The one and only Harley I'd be interested in owning/ riding would be the XR750... 8-)



How about one of these?

http://www.aermacchi-world.de/rr-250.html

http://www.classic-auctions.com/Auctions/08-06-2011-ThePavilionGardens-1298/1974Aermacchi-HarleyDavidsonRR350-32940.aspx


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PostPosted: Tue Oct 04, 2011 9:57 am 
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Joined: Sat Jun 11, 2011 10:08 am
Posts: 263
Location: North Shore, Massachusetts
axiom-r wrote:
Anybody caught one of the XR-1200 Racing Series events? Really, really good racing. The riders all seem to be loving it too...
http://www.vanceandhines.com/xr1200series/about.html

$3500 turns your off the floor XR into a competitive racer.....
http://www.vanceandhines.com/xr1200series/racekit.html

Some great shots of the racing action under the "Media" tab on the header bar at the Vance and Hines site.



I wonder why the V&H exhaust joins together, then splits apart into 2 separate mufflers?


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PostPosted: Tue Oct 04, 2011 12:39 pm 
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Joined: Wed Jun 08, 2011 10:04 pm
Posts: 2223
Location: Just north of Toronto, Ontario
Hal wrote:
Walms wrote:
The one and only Harley I'd be interested in owning/ riding would be the XR750... 8-)



How about one of these?

http://www.aermacchi-world.de/rr-250.html

http://www.classic-auctions.com/Auctions/08-06-2011-ThePavilionGardens-1298/1974Aermacchi-HarleyDavidsonRR350-32940.aspx



I'm sure it's a nice bike but only interested in XR for Flat track because of the natural drag when off the throttle... IMO there are better engine configurations for road racing.

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PostPosted: Tue Oct 04, 2011 1:39 pm 

Joined: Thu Jun 09, 2011 11:25 am
Posts: 3146
I personally have seen Vance ride, and that bike up close, and worked on the suspension.

there used to be a saying about the late, great Cal Rayborn, that "He rode that Harley faster than it would go". Same applies for Vance and the way HE rode his bike.

The absolute best road race Harley I ever saw was an air cooled one, NOT the KR's, called "Lucifer's Hammer".

My friend and former Harley factory road race mechanic, Craig Fillmer, whom now lives in Mason, Nevada, about 10 miles from me, always discuss different things about both the KR racers and Lucifer's Hammer when we run into each other around town. We both agreed that the biggest problem with the KR's was two-fold, the cams were too small, and the intake tract too long, and that Steve Schiebe, a former Roush Mustang parts washer and Harley race team manager, was not good for anything. All Scheibe wanted to do was copy a Roush 5.0 Mustang engine that had two cylinders cut off it, so those two cylinders would fit in the HD chassis. I met Craig at Daytona the first year they ran the KR's, they were pitted right next door to us. Miguel DuHamel, and, the late Fritz Kling were riding for them then.

I came onto the pit wall in one test session that Daytona, and sat next to Craig, and said "You guys are out of camshaft, specifically, the exhaust cam". He asked me how I KNEW that, I said "Can't you hear it in the engine, listen". We've been friends, and pals in engine design ever since. By Elkhart Lake that same year, with new 'Fillmer'-Maga-Cycle Cams in place, Miguel and Fritz in a very tight pack of 4, leading the race, and pulling away from everybody else, and Miguel almost won the race.

Vance's bike was leaps and bounds past every other HD for its time, great work.


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PostPosted: Wed Oct 05, 2011 2:58 am 

Joined: Sun Jun 12, 2011 1:49 am
Posts: 348
Location: Pacifica, CA
Saw Vance run one of his Harleys, could have been the one in the mag, at Fremont Drag Strip a long time ago. He was there doing some tuning, watched him chop 2" off the exhaust pipes, swap some jets and go again. Bike ran and sounded awesome!

Don

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PostPosted: Wed Oct 05, 2011 8:10 am 
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Joined: Wed Jun 08, 2011 11:34 pm
Posts: 9840
Location: North Central NC
Ric wrote:
Also, you can get something similar today in the XR1200.

It looks like the XR1200 is 215 lb. heavier and somewhere between 18 and 30 hp weaker than the 1290cc bike in the article.

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If it surges, that's normal, upshift.


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PostPosted: Wed Oct 05, 2011 8:17 am 
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Joined: Thu Jun 23, 2011 12:20 pm
Posts: 32
Location: Northwest Connecticut
Walms wrote:
The one and only Harley I'd be interested in owning/ riding would be the XR750... 8-)

Image



:clap: I agree sir! the only harley worth the $20K+ :crazy: they charge for their bikes....


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PostPosted: Mon Oct 10, 2011 10:18 am 
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Joined: Thu Jun 09, 2011 12:25 pm
Posts: 66
Location: Philadelphia
smoff83 wrote:
axiom-r wrote:
Anybody caught one of the XR-1200 Racing Series events? Really, really good racing. The riders all seem to be loving it too...
http://www.vanceandhines.com/xr1200series/about.html

$3500 turns your off the floor XR into a competitive racer.....
http://www.vanceandhines.com/xr1200series/racekit.html

Some great shots of the racing action under the "Media" tab on the header bar at the Vance and Hines site.



I wonder why the V&H exhaust joins together, then splits apart into 2 separate mufflers?


Scavenging effect for four strokes. Like an "X" pipe for a performance car.


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