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Midwest Factory Mod/Pro Mod Weights

Midwest Factory Mod 1 for Haydays, Princeton 2022

Open Mod 440 250 lbs chassis weight

Heavy Mod 500 500 lbs

Pro Stock/Mod 600 2cyl @ 565 lbs 3cyl @ 600 lbs

Pro Stock/Mod 700 2cyl @ 620 lbs 3cyl @ 675 lbs

Retro 700 2cyl @ 550 lbs 3cyl 575 lbs

Improved Stock 700 no minimum weight

Improved Stock 800 2cyl @ 685 lbs 3cyl @ 740 lbs

Improved Stock 1000 2cyl @ 735 lbs 3cyl @ 835 lbs



Midwest Factory Mod 2 for Haydays, Princeton 2022

Open Mod 600 @ 500 lbs

Heavy Mod 700 2cyl @ 550 lbs 3cyl @ 575

Pro Stock 800 2cyl @ 575 lbs 3cyl @ 650 lbs

Imp Stock 1000 2cyl @ 685 lbs 3cyl @ 750 lbs

Retro 800 @ 600 lbs



Midwest Factory Mod 3 for Haydays, Princeton 2022

Classic Pro Stock 700 @ 575 lbs 2cyl, 600 lbs 3 cyl

Stock 800 @ Required ISR weight

Imp Stock 600 @ 645 lbs. 2 cyl /675 lbs. 3 cyl /4 stroke 750 lbs

700 Imp Stock @ 675 lbs. 2 cyl / 700 lbs. 3 cyl

Pro Stock/Pro Mod 500 @ 550 lbs.

Retro 700 @ 575 lbs. 2 cyl / 600 lbs 3 cyl

Vintage Pro Stock 440-500 no weight

Midwest Factory Mod 4 for Princeton 2022

Vintage Mod Stk 440-500 no weight

Stock 700 @ Required ISR weight

Imp Stock 600 @ 665 lbs. 2 cyl /695 lbs. 3 cyl /4 stroke 775 lbs

Classic Improved Stock 700 @ 600 lbs 2cyl / 625 lbs 3 cyl

Classic Pro Stock 600 @ 575 lbs 2cyl / 600 lbs 3 cyl

Classic IMP Stk 600 no weight

Improved Stk 500 no weight

Retro 600 no weight



PRO MOD Challenge for Princeton, Haydays

Pro Mod 4 stroke 685 lbs 2 cyl / 720 lbs 3 cyl / 725 lbs 4 cyl



Pro Mod 2 stroke weights

Up to 825cc 2 cyl 500 lbs

Up to 825cc 3 cyl 515 lbs

Up to 825cc 4 cyl 530 lbs

826 to 925cc 2 cyl 515 lbs

826 to 925cc 3 cyl 530 lbs

826 to 925cc 4 cyl 545 lbs

926 to 1025cc 2 cyl 530 lbs

926 to 1025cc 3 cyl 585 lbs

926 to 1025cc 4 cyl 615 lbs

1026 to 1125cc 2 cyl 550 lbs

1026 to 1125cc 3 cyl 610 lbs

1026 to 1125cc 4 cyl 630 lbs

1126 to 1225cc 2 cyl 560 lbs

1126 to 1225cc 3 cyl 630 lbs

1126 to 1225cc 4 cyl 655 lbs

1226 to 1325cc 2cyl 570 lbs

1226 to 1325cc 3 cyl 645 lbs

1226 to 1325cc 4 cyl 670 lbs

1326 to 1425cc 3 cyl 670 lbs

1326 to 1425cc 4 cyl 685 lbs

1426 to 1725cc 3 cyl 700 lbs

1426 to 1725cc 4 cyl 720 lbs


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