MM (MINI MOW) Class
(ages 6-11)
(ages 6-11)
USLMRA Mower Specifications:
- Cutting blades must be removed
- 6.5 hp maximum (212cc Predator motor is suggested)
- 3,650 rpm maximum
- 6:1 final drive ratio
- 39″ – 49″ wheelbase
- 5″ – 6″ diameter aluminum wheels
- 12″ maximum rear tire diameter
- 2-1/2″ minimum ground to frame distance
- centrifugal clutch only
JP Class
(AGES 9-15)
(AGES 9-15)
USLMRA Mower Specifications:
- Cutting blades must be removed
- 33 ci and under (stock)
- 3,650 rpm maximum
- 8:1 final drive ratio
- 39″ minimum unaltered wheelbase
- 42″ minimum for GP, which can be raced with gear changes
- 5″ minimum front wheels
- 8″ minimum back wheels
- 16″ maximum rear tire diameter as written on the sidewall
- 4″ minimum ground to frame distance
GP Class
(AGES 11 and up)
(AGES 11 and up)
USLMRA Mower Specifications:
- Cutting blades must be removed
- 33 ci and under (stock)
- 3,650 rpm maximum
- 42″ minimum unaltered wheelbase
- 5″ minimum front wheels
- 8″ minimum back wheels
- 16″ maximum rear tire diameter as written on the sidewall
- 4″ minimum ground to frame distance
GPT Class
USLMRA Mower Specifications:
- Cutting blades must be removed
- 44 ci v-twin and under (stock)
- 3,650 rpm maximum
- 42″ minimum unaltered wheelbase
- 5″ minimum front wheels
- 8″ minimum back wheels
- 16″ maximum rear tire diameter as written on the sidewall
- 4″ minimum ground to frame distance
AP (A-Prepared) Class
USLMRA Mower Specifications:
- Cutting blades must be removed
- 10.5 HP & under
- valve in block or OHV, 4 stroke engine
- 34″min. wheelbase
- 4″ min. front wheels
- 6″ min. rear wheels
- min. 4″ ground clearance to frame
- min. 2-1/2″ ground clearance to deck
- must appear stock
- billet flywheel is mandatory
CP (C-Prepared) Class
USLMRA Mower Specifications:
- Cutting blades must be removed
- 20 HP & under
- single-cylinder OHV or
- two-cylinder valve in block (opposed twin), 4 stroke engines
- 42″min. wheelbase
- 6″ min. front wheels
- 8″ min. rear wheels
- min. 4″ ground clearance to frame
- min. 2-1/2″ ground clearance to deck
- must appear stock
- billet flywheel is mandatory
SP (S-Prepared) Class
USLMRA Mower Specifications:
- Cutting blades must be removed
- OVER 8.5 HP
- valve in block, single-cylinder 4 stroke engine
- 39″min. wheelbase
- 5″ min. front wheels
- 8″ min. rear wheels
- min. 4″ ground clearance to frame
- min. 2-1/2″ ground clearance to deck
- must appear stock
- billet flywheel is mandatory
BP (B-Prepared) Class
USLMRA Mower Specifications:
- Cutting blades must be removed
- 20 HP & under
- OHV, V-twin 4 stroke engine
- 42″min. wheelbase
- 6″ min. front wheels
- 8″ min. rear wheels
- min. 4″ ground clearance to frame
- min. 2-1/2″ ground clearance to deck
- must appear stock
- billet flywheel is mandatory
FXS Class
USLMRA Mower Specifications:
- Cutting blades must be removed
- 33 ci maximum OHV single cylinder, or opposed twin 46 ci maximum
- 39″ minimum unaltered wheelbase
- 42″ sidewall to sidewall
- 5″ minimum front wheels
- 6″ minimum back wheels
- aluminum billet flywheel is mandatory
- hydraulic brakes are mandatory
- side/crash bars are mandatory
- 450 pounds WITH driver
FXT Class
USLMRA Mower Specifications:
- Cutting blades must be removed
- V-twin vertical or horizontal 24 hp max, 44ci max OEM rated 4 cycle lawnmower equip engines
- 42″ minimum unaltered wheelbase
- 42″ sidewall to sidewall
- 5″ minimum front wheels
- 6″ minimum back wheels
- aluminum billet flywheel is mandatory
- hydraulic brakes are mandatory
- side/crash bars are mandatory
- closed loop rear bumpers are mandatory
- 500 pounds WITH driver