Thermoformed top-shell and bottom-shell
Stepped equal-length headers – 1-3/4" to 1-7/8" designed for maximum performance
equalized seal pressure creates less drag and longer seal life
2024 BMW F 900 GS Adventure - - 2021-2024 BMW R 1250 GS Adventure - - 2021-2023 BMW R 1250 GS - -
DRAG SPECIALTIES Knurled Primary Bolt Kit - XL MK685 Replacement Master Cylinder Assembly Thermoformed top-shell and bottom-shellSocket head bolt sets to meet virtually any custom need Complete motor sets for 07 and later Big Twin include bolts for primary, cam, cam sensor, derby, rocker box, transmission top, transmission side, lifter block and clutch covers Complete motor sets for 87 94 Big Twin include bolts for cam, primary, point, clutch, inspection and chain covers, lifter base, inner primary, top front and rear motor mounts, timing plug and header mount screws Complete