Oversize Intake Valve Guide. Fits Twin Cam 2005-17 & Sportster 2005-2021. +.001in. Outside Diameter. NMZ-N-OBD-II using precision load rated wave

using precision load rated wave springs

Drop tree design allows you to ride your bike at stock ride height or lift up to 1" for increased ground clearance

prevents oil pump damage

5″ center on center riser spacing

Oversize Intake Valve Guide. Fits Twin Cam 2005-17 & Sportster 2005-2021. +.001in. Outside Diameter. NMZ-N-OBD-II using precision load rated wave* Designed for Harley Davidson heads * Also fits Buell 2005up * Use with OEM style AV V7MMOE Viton Guide Seal or * AVV HV 7MM Viton Guide seal for double spring application * Manganese Bronze * Tapered & shorter nose for high performance * High temp viton o ring seal * Smooth lead in * CNC machined * Guide ID unfinished * OD = . 5635" (+. 001" Oversize) * ID = 7mm . 273" * AV VGRC 2766 Reamer recomended for AV&V guides & valves (+. 001" on OEM valves)