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Two-Stroke Classes
from 2022 AHRMA Handbook
by AHRMA
16.6.3 NEXT GEN 1 250: Certain two-stroke motorcycles 126-250cc that were produced within the guidelines of the Next Gen 1 class specifications. Eligible machines include, but are not limited to: • 1988-’93 ATK 250 • 1987-’96 Honda CR250R • 1989-’99 Husqvarna 250 • 1989-’02 GasGas 250 • 1986-’98 Kawasaki KX250 • 1986-’06 Kawasaki KDX200, KDX220, KDX250 • 1988-’02 KTM 250 • 1987-2000 Suzuki RM250, RMX250 • 1994-’98 TM Racing 250 • 1988-’98 Yamaha YZ250, WR250 16.6.4 NEXT GEN 1 500: Certain two-stroke motorcycles 256-500cc that were produced within the guidelines of the Next Gen 1 class specifications. Eligible machines include, but are not limited to: • 1988-’95 ATK 406 • 1987-’03 Honda CR500R • 1989-’91 Husqvarna 300xx • 1986-’04 Kawasaki KX500 • 1986-05’’ KTM 300, 360, 380 (up to MXC/EXC)
16.7 TWO-STROKE CLASSES
16.7.1 MILLENNIUM TWO-STROKE: Millennium Two-Stroke: machines incorporate nearly all features of current motorcycle technology. Class eligible machines shall consist of circa 1997 to 2008 two-stroke motorcycles which were factory-produced. These machines represent the era when two-stroke motocross bikes were nearing the end of their development cycles and were being phased out of the Japanese manufacturer’s model lines in favor of modern four-stroke motocross bikes. OEM engine and main frame combination/configuration must remain as produced by the original manufacturer for a given model. Motorcycles built using engines and frames from different models/displacements, even if from the same manufacturer, are not allowed. 16.7.2 MILLENNIUM TWO-STROKE 125: Certain two-stroke motorcycles 100-125cc that were produced within the guidelines of the Millennium class specifications. Eligible machines include, but are not limited to: • 1997-’07 Honda CR125R • 2000-’13 Husqvarna CR125 (Pre-Austrian) • 1999-’06 Kawasaki KX125 • 2001-10’ KTM 125 SX (PDS Shock, No Linkage) • 2001-’07 Suzuki RM125 • 1999-’07 TM Racing 125 MX (Steel Perimeter Frame) • 2002-’05 Yamaha YZ125 (Pre-KYB SSS Front Fork, No Ti Shock Spring)
