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Scott Smallwood on his
little Honda RS125 in Sound of Singles Two-Stroke. (Photo: Matt
Benson) |
MODERN ROADRACE CLASSES
Sound of Singles® (SOS)
- Super Mono 2: Four-valve four-strokes to 510cc and two-valve
four-strokes to 610cc.
- Super Mono™: Unlimited displacement four-strokes.
- Production Singles.
Single-cylinder four-stroke motorcycles that are or were available for
sale to the general public and intended for street use in the U.S.
- Two-Stroke Singles: Two-stroke singles to 550cc.
Battle of Twins® (BOT)
- Formula 3 Twins: Pushrod OHV twins to
1000cc, OHC 2- or 3-valve to 800cc and OHC liquid-cooled 4-valve to 650cc.
- Formula 2 Twins: Pushrod OHV machines to 1250cc,
liquid-cooled OHC to 750cc, air-cooled 2-valve to OHC to 1000cc and
air-cooled 4-valve to 1000cc.
- Formula 1 Twins:
No displacement limits. Engine
modifications are unlimited, except on water-cooled 4-valve twins over
900cc.
- Open Two-Stroke: Air-cooled machines to 500cc, water-cooled
motorcycles with tubular frame to 400cc and modern 250cc GP type
machines.
Sound of Thunder®
Unlimited displacement four-stroke
singles; 4-valve demo twins to 1000cc, OHC twins to 1100cc and pushrod
twins to 1350cc; three-cylinder machines to 1000cc; and twin-rotor rotary
engines.
Download PDF of 2008 Handbook
AHRMA 2008
Michigan Engineering
Historic
Cup Roadrace Series
| Date |
Location |
Round |
Pre-entries close |
|
Feb.28 |
Roebling Road Raceway, Bloomingdale, Ga.
(Feb. 27, AHRMA-run practice day)
|
1 |
Feb. 15 |
| March 3-4 |
Daytona International
Speedway
Daytona Beach, Fla.
(Tech Day, March 2)
|
2-3 |
Feb. 15 |
|
April 12-13 |
Willow Springs International Raceway, Rosamond, Calif.
(April 11, AHRMA-run practice day)
|
4-5 |
March 28 |
| May 17-18 |
Talladega GP Raceway, Talladega, Ala.(May
16, AHRMA-run practice day)
|
6-7 |
May 2 |
|
June 14-15 |
Road America,
Elkhart Lake, Wis.
(June 13, AHRMA-run practice day)
|
8-9 |
May 30 |
|
June 21-22 |
Grattan Raceway Park, Grattan, Mich.
(June 20, Track-run practice day)
|
10-11 |
June 6 |
|
July 26-27 |
AMA Vintage Motorcycle Days, Mid-Ohio Sports Car Course, Lexington
(July 25,
AHRMA-run practice day)
|
12-13 |
July 11 |
|
Sept. 6-7 |
Bonneville Vintage GP, Miller Motorsports Park, Tooele, Utah
(Sept. 5,
AHRMA-run practice day)
|
14-15 |
Aug. 22 |
|
Sept. 13-14 |
Sandia Classic, Sandia Motorsports Park, Albuquerque, N.M.
(Sept. 12, AHRMA-run practice
day)
|
16-17 |
2008
post sandia results |
|
Oct. 18-19 |
Barber Vintage Festival, Barber Motorsports Park, Birmingham, Ala.
(Oct. 17, AHRMA-run
practice day)
|
18-19 |
Final Results are posted
11/20/08 |
Best
11
finishes count toward championship. Minimum of 2 events needed to
qualify.
For additional information, check these pages:
News Flashes |
Entry Information Page |
|
