How often should I change my front fork oil on my CB450 / CL450 / CB500T? December 17, 2018 05:33 Every 5,000 miles / 8,000 km or once a year, whichever comes first Related articles What type of fork oil and how much fork oil should I use in my CB450 / CL450 / CB500T? How to rebuild the Honda CB450 K5-K7 / CL450 K5-K6 internal spring with dampening rod forks How to rebuild the Honda CB450 K0-K2 & CL450 K0-K4 external spring forks Honda CB450 / CL450 / CB500T Factory Service Manuals CB500T Triple Tree Handlebar Riser Bushing Fitment