S&S, 3-7/16" bore 9:1CR piston kit. Std - 41-78 1200cc/74" Knuckle, Pan, Shovel (NU) Wheels axle nuts 30-34 Rockwell hardened 24 series

30-34 Rockwell hardened 24 series stainless

Progressive Suspension Shock 425 Rzr Rear

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S&S, 3-7/16" bore 9:1CR piston kit. Std - 41-78 1200cc/74" Knuckle, Pan, Shovel (NU) Wheels axle nuts 30-34 Rockwell hardened 24 seriesStandard replacement was 8: 1 (46cc dome), these come with a 9: 1 (57cc dome) compression ratio for a bit more oomph. S&S forged pistons with an advanced alloy and skirt profiles, resulting in a quiet engine and long life, previously only achievable with cast pistons. Used as replacement, with a higher compression ratio, for 1200cc (74") Shovel, Pan and Knucklehead models. 3 7 16" bore with stock 3 31 32" stroke. Pistons include wrist pins, wrist pin