Hastings, 2-3/4" bore piston ring set. +.030" - 50-73 45" (750cc) Flathead; all 52-56 K 45" (750cc) and KH, KHK 55" (900cc) Flathead models (NU) 561432 so you can legally scramblerize

so you can legally scramblerize your 1200 Sportster or Softail that needs to be driven off or on the road

*Type B' gasket was introduced on Evolution XL Sportster models in 1986

the maximum width is 27 cm and 14 cm at the back

This bar is great for people looking to split lanes and carve up the canyons

Featuring:-One-piece stamped 16-gauge steel top and bottom-TIG welded tank seams and mounting tabs-Lathe-turned

Hastings, 2-3/4" bore piston ring set. +.030" - 50-73 45" (750cc) Flathead; all 52-56 K 45" (750cc) and KH, KHK 55" (900cc) Flathead models (NU) 561432 so you can legally scramblerizeUsed with late style 1950 1973 type pistons with 1 16" gray iron parkerized compression rings and the 3 piece flex vent style chrome oil rings. Also fits 52 56 K, KH, KHK 55" (900cc) Flathead models. Std Bore: 2. 745" (69. 723mm). 1st ring: 1. 6mm. 2nd ring: 1. 6mm. oil ring: 4. 75mm. Note: OEM 1929 1949 pistons are equipped with 3 32" (2. 3mm) 1st. & 2nd rings and 1 8" (3. 2mm) oil ring, for these Hastings rings see 1950 1973 Flathead model years.