Mower Classification

MM (MINI MOW) Class
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

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

GPS Class
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

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

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

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