AHRMA: Dinsmoor Takes Both Wins At Pittsburgh

AHRMA: Dinsmoor Takes Both Wins At Pittsburgh

© 2025, Roadracing World Publishing, Inc. From a press release issued By AHRMA

August 19, 2025, Knoxville, TN – The 2025 Vintage Cup Series continued August 16 and 17 at Pittsburgh International Race Complex in Wampum, PA, as part of the 2025 AHRMA National Roadracing Series presented by Motobilia. 

Sponsored by Roadracingworld.com, and NYC Norton (nycnorton.com), AHRMA’s 2025 Vintage Cup features the 500 Premier class which includes 500cc four-stroke machines built up to and including 1968. Featured bikes from this era would include the 500cc Manx Norton, Matchless or Seeley G50, BSA Goldstar or 500cc BSA Twin “works” replica, Benelli “works” four, Harley KR, Honda Drixton Twin, and more. 

On Saturday, three beautiful examples of the premier 500 era lined up for the 2025 AHRMA 500 Premier Vintage Cup race: Kevin Dinsmoor, riding John Turner’s impeccably turned out BMW R50 seated on pole position, joined by Brian Larrabure on an NYC Norton Seeley G50, and Tim O’Donnell on his 1968 BSA B44. At the drop of the green flag, Larrabure got a fantastic launch and took the hole shot into T1, holding onto a close lead until about mid-race.  Never more than a few bike lengths behind, Dinsmoor got Larrabure on the brakes in the back section. Battling fiercely, Larrabure and Dinsmoor exchanged leads several times for the duration of the race, with Dinsmoor making the final move as they rose over the hill in Turn 14, and the race culminated with a full-out drag race to the finish line. Dinsmoor got the win, with Larrabure a mere .066 seconds behind. O’Donnell rounded out the race taking 3rd.

At the start of Sunday’s race, Dinsmoor put his head down and was able to take the lead from the beginning and held it to the checkered flag. For a period in the last third of the race it seemed Larrabure was chipping away at Dinsmoor and would have to pull off some serious moves to make it happen. Unfortunately, one shifting mistake in the last lap put Larrabure several bike lengths back, and Kevin rode home to a flag-to-flag victory uncontested. Larrabure finished in second place, with O’Donnell in third.

“Pittsburgh was a tough weekend for all of the AHRMA family and the tone in the paddock was understandably subdued. Having said this, the 500 Premier class put on quite a fireworks show giving us all the reassurance that we do this simply because we love the sport and know a single great race can last forever in our hearts. This was a classic 500cc GP dust-up, and the riders were quite complimentary of the other’s race craft.” said Kenny Cummings of NYC Norton.

“Kevin Dinsmoor was putting in some fantastic lap times in practice on that stunning red Boxer, and Larrabure knew he had his work cut out for him. I was a proud sponsor AND builder to see the two of them go at it as closely as they did. Good stuff. Looking forward to seeing what the fast, flowing lines Nelson Ledges will bring to the penultimate weekend of our 2025 Vintage cup”

“Pitt Race and the program of support of the Roadracing World Air Fence Fund is a perfect example of how the system works. Through donations from individuals and N2 Track Days fundraising efforts there are several sections of Air Fence, and a large number of Soft Barriers kept and maintained on site by Pittsburgh international Race Complex giving AHRMA racers protection in potential impact zones. AHRMA fundraising efforts since March have collected over $30,000 from our members to support the 501(c)(3) Roadracing World Action Fund. A new Alpinestars Tech Air 10 suit donated by Chris Jensen, long time AHRMA racer was auctioned off in the awards ceremony and raised $750.00 going directly to the fund. To donate please go to roadracingworld.com/actionfund/donate/”, shared Bob Robbins, AHRMA Safety Committee Chair.

Rounds seventeen and eighteen of the AHRMA National Road Race Series Presented by Motobilia will be September 6-7 at Nelson Ledges Raceway in Garrettsville, OH.

The annual Vintage Cup spotlights one of AHRMA’s road racing classes with extra attention on competitors in the selected class during each race event. Enhanced awards for the Vintage Cup competitors are presented separately from other class trophies during the Saturday awards ceremony at each AHRMA National Road Race event. Highlights from each Vintage Cup race will be reported in RoadRacingWorld.com’s online edition. At the conclusion of each season, the perpetual Vintage Cup trophy will be engraved with the national champion winner’s name and presented to the winner at the National Awards Banquet to keep for one year.

2025 AHRMA Roadracing Series Presented by Motobilia, 500 Premier – Vintage Cup Results

 

Saturday, August 16, 2025

  1. Kevin Dinsmoor, 1962 BMW Turner R-50, Colchester, CT
  2. Brian Larrabure, 1962 Norton Manx, Calabasas, CA
  3. Tim O’Donnell, 1968 BSA B44, Indianapolis, IN

 

Sunday, August 17, 2025

  1. Kevin Dinsmoor, 1962 BMW Turner R-50, Colchester, CT
  2. Brian Larrabure, 1968 Seeley G50, Calabasas, CA
  3. Tim O’Donnell, 1968 BSA B44, Indianapolis, IN

 

About AHRMA:
The American Historic Racing Motorcycle Association (AHRMA) is a not-for-profit organization dedicated to competing on fantastic classic and true vintage along with a wide range of modern motorcycles.  With over 3,000 members, AHRMA is the largest vintage racing group in North America and one of the biggest in the world. The association has grown steadily over the years, reflecting the increasing interest in classic bikes.

 

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