a breather filter like this is required to cap the crankshaft breather hose

you can order the "HeadStraight Only" for your 1090 and 1290 SAR in "BRP compatible" version

F 2013 2022 CBR500 R/RA-K 2019 2022 CBR600 FM

2020-23 TE150i-300i/TX300i

Supersprox - Sprocket 50 Rear Suzuki Gold (RST-808-50-GLD) K-Type-Protective Gear Replacement Parts a breather filter like thisDrive Sprocket Front Drive Sprocket Supersprox front sprockets are the best on the market today, with a balance between performance and longevity. Features SCM435 Ni Chrome Molybdenum low corrosion steel. Case hardened surface for maximum water resistance. Low carbon core to prevent breakage. Has the ultimate combination of strength and hardness. Rear Drive Sprocket (many style available) Stealth Sprocket (aluminum & steel) Longer system life without