Joined
·
1,669 Posts
If I had the guess, it's marketing fluff for shocks that have disc-type valving with two (or more) damping circuits.
The "low speed" or "low frequency" circuit is in play on roads with decent surface quality. The low-speed circuit would probably have a high damping rate to provide a firm ride and help control body movements during aggressive driving. The "high speed" or "high frequency" circuit, is basically a blow-off for the low-speed circuit if there is a sudden spike in pressure. Basically it is for when you hit a pothole, or are just driving on very rough roads. It will have a much lower damping rate to help isolate harsh bumps from the cabin.
This is just a guess though, it's hard to tell what marketing buzzwords mean a lot of the time. Might be worth sending Ralph a message on twitter or something to clarify.
Standard shocks typically have fixed porting, so if you make them soft for potholes, they may be too soft for normal driving. Fancier shocks add disc-type valves which offer more flexibility, but multi-circuit shocks are a step above yet.
The "low speed" or "low frequency" circuit is in play on roads with decent surface quality. The low-speed circuit would probably have a high damping rate to provide a firm ride and help control body movements during aggressive driving. The "high speed" or "high frequency" circuit, is basically a blow-off for the low-speed circuit if there is a sudden spike in pressure. Basically it is for when you hit a pothole, or are just driving on very rough roads. It will have a much lower damping rate to help isolate harsh bumps from the cabin.
This is just a guess though, it's hard to tell what marketing buzzwords mean a lot of the time. Might be worth sending Ralph a message on twitter or something to clarify.
Standard shocks typically have fixed porting, so if you make them soft for potholes, they may be too soft for normal driving. Fancier shocks add disc-type valves which offer more flexibility, but multi-circuit shocks are a step above yet.