Classes

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NW Minibike National Classes

BUBBLE TIRE  -   For Z50 style bikes. Air cooled, horizontal 4 stroke engines only. 88cc max cylinder size. 8" max wheel size front and rear. Must Z50/CRF50 style frame, and must have twin shocks. 13 years of age or older 


50 STOCK/MOD  -   For bikes such as CRF50, TTR50, XR50 etc. 49cc-72cc air cooled, horizontal 4-stroke engines. Must use stock head. Auto clutch only, no manual clutches. Max 10" wheels front and rear, drum brakes only. No aftermarket, H style or extended swingarms. Fork extensions are allowed, no aftermarket forks. Stock frame only, no aftermarket or extended frames. 13 years of age or older 


50 MOD  -  For bikes such as CRF50, TTR50, XR50 etc. horizontal air cooled 4-stroke engines. 10" rear wheel and 12" front wheel max size.  13 years of age or older 


110 STOCK/MOD  -   For bikes such as KLX110, TTR110 etc. 143cc max cylinder size, air cooled, horizontal 4-stroke engines. Must use stock head. Max 14" wheel front and 12" rear wheel size. Drum brakes only. No aftermarket, H style or extended swingarms. No aftermarket forks. Stock frame only, no aftermarket or extended frames. 13 years of age or older 


110 MOD  -    For bikes such as KXL110, CRF110, DRZ110 etc. horizontal air cooled 4 stroke engines, 12" rear wheel and 14" front wheel max size. 13 years of age or older 


OPEN $$  -   Same rules as both 50 and 110 mod, horizontal air cooled 4 stroke engines, 12" rear wheel and 14" front wheel max size. Max bike length 69". 100% cash payback unless otherwise noted as more. 16 years of age or older 


150 STOCK  -   For bikes such as XR100, TTR125, CRF150F etc. Air cooled 4 strokes only. No aftermarket bore kits, swingarms, forks or frames. 16" rear and 19" front wheel max size. 13 years of age or older 


150 MOD  -   All midsize bikes including 150R and 85 2-strokes. 16" rear and 19" front wheel max size. 100% payback unless otherwise noted as more.16 years of age or older 


YOUTH -13  -   Same rules as 50 and 110 mod. 12" rear and 14" front wheel max size. 13 years and younger 


150 YOUTH -13  -   Same rules as 150 Stock. 16" rear and 19" front wheel max size. 13 years and younger 


B.O.O.  -   Same rules as 50 and 110 mod. 12" rear and 14" front wheel max size. B.O.O. stands for "Big or Old", for riders atleast 35 years of age, or atleast 220lb in street clothes (NOT GEAR).  WE WILL HAVE A SCALE TO CHECK!


GEEZER  -  Sames rules at 50 and 110 mod. 12" rear and 14" front wheel max size. For riders 45 years of age or older


WOMEN  -   Same rules as 50 and 110 mod. 12" rear and 14" front wheel max size. Ladies only 


3 WHEELER  -   For bikes such as ATC70 or 110. Air cooled, horizontal 4 stroke engines only. 10" max wheel size. 

Sponsors

TB Parts

JJW Designs

One10 Clothing

U of MX

Riverdale Raceway

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