Class Specifications

2018 Stock Outboard Classes: Age, Weight, Height, Engine, Restrictor and Tuck Specifications

Class Min. age Min. wt. Height Engine Restrictor Plate/Tuck
JR/JH 9 – 16 300 1 3/4″ OMC15ss, Merc 15 OMC .562 – Merc “J” slotted JH 1/2″ Tuck – 1″ Set Back
AXH 12 325 1 3/8″ OMC15ss, Merc 15 OMC .650 – Merc-none
1/2″ Max Tuck
AXR 12 330 1 3/8″ OMC15ss, Merc 15 OMC .650 – Merc-none
1/2″ Max Tuck
ASH 14 345 1” OMC15ss 1/2″ Max Tuck
ASH 14 330 1” Merc 15 1/2″ Max Tuck
ASH 14 345 1 3/4″ Sidewinder A 1/2″ Max Tuck
ASR 14 350 1” OMC15ss
ASR 14 335 1” Merc 15
ASR 14 350 1 3/8″ Sidewinder A
15SSH 15 365 1/2″ HR15
15SSH 15 365 1″ Sidewinder 20S SW 20S 3/4″R
15SSR 15 360 1″ HR15 “Bottom Fin”
15SSR 15 360 1 3/8″ Sidewinder 20S SW 20S 3/4″R, “Bottom Fin”
15SSR 15 375 1 3/8″ HR15 “Side Fin”
15SSR 15 375 1 3/4″ Sidewinder 20S SW 20S 3/4″R, “Side Fin”
BSH 16 400 1/2″ Sidewinder 20S Unrestricted
BSH 16 420 3/4″ Merc 25SX Restricted (Through 2020)
BSH 16 400 1/2″ Y80 (Through 2020)
BSR 16 395 1″ Sidewinder 20S Unrestricted, Any Fin Mount
CSH 16 440 3/4″ Y102/Y302/Y321
CSR 16 475 3/4″ Y102/Y302/Y321
20SSH 15 400 1/2″ Y102/Y302 7/16″R
20SSH 15 400 3/4″ Y321 7/16″R
25SSR 16 395 1 3/8″ Merc 25XS Unrestricted
25SSR 16 405 3/4″ Y102/Y302/Y321 1/2″R
25SSR 16 430 3/4″ Y102/Y302/Y321 9/16″R
DSH 18 480 0″ Merc
DSH 18 480 1/2″ TOHATSU
DSR 18 515 3/4″ Merc/TOHATSU Marathon ONLY Class
300SSH 14 420 1 3/8″ Y302/Y321 Sealed 1/2″ Max Tuck – 5″ Set Back
(Min 8’9″L – 35″W Bottom, 5’9″ AP)
OSY400 14 396 Y80, 102, 202, 302, 321 APBA PRO Class