Ducati Monster Forum

The manual says the factory setting for rebound damping is 14 clicks out. Can we assume the maximum clicks out and therefore minimum damping is 28? The factory setting for the compression damping is 12 clicks out of 24-25 and then the knob ceases to turn, but the rebound knob will keep spinning and give clear clicks to over 50 clicks! Can we work on the assumption that the factory settings are close to half way? The rebound knob does not appear to freewheel. Is this evidence of the shock having been modified and would one expect the knob to freewheel sooner?
Got the shock working well btw.
Cheers

I think the pushrod bottoms out at some point and then the knob is freewheeling even if it's clicking.

Cheers mate [thumbsup]

I don´t know specifically about the DU 440, but on the fully adjustable shocks with external gas canister (the proper english word eludes my right now) I´ve worked on, the system looks like this:

(https://farm5.staticflickr.com/4836/44087015590_1bd20b4822_b.jpg) (https://flic.kr/p/2aaPtLs)P6290024 (https://flic.kr/p/2aaPtLs) by torbjörn bergström (https://www.flickr.com/photos/125016045@N02/), on Flickr

The crosspin runs in a slot in the shock shaft and "clicks" against the serration in the bottom of the adjuster knob.The adjuster pushrod rests against the crosspin, and is pressed against the crosspin by the internal gas pressure.

Usually the crosspin bottoms out after maybe 40 clicks, but the adjuster knob can turn several turns more before it bottoms out against the mounting eye (i.e., no clicks).

I´m not familiar specifically with the DU440, but I think it´s the same type shock as other DU46´s.

  

Thanks [thumbsup]

Further testing indeed has the rebound wheel/knob freewheeling at nearly 45 clicks. I note for a fact that the rebound adjustment indeed effects both rebound and low speed compression while the compression adjustment knob on the gas canister effects high speed compression. Once I understood this via testing I have been able to make meaningful adjustments. I have gone to extreme settings to gain an understanding of the effects on my bikes handling. It has been a learning experience and I appreciate the advice from my cousins around the world.

I was reducing rebound to get compliance but this also effected low speed compression damping to the point of allowing the rear to collapse on corner entry which unweighted the front end and tyre with all the consequences you can imagine. I underestimated the effect the rebound had on low speed compression. Front forks have been replaced with spare forks which had been resprung/revalved. No more rocking horse effect and a stable platform to attack corner entries .
The shock is old but must have been serviced at least once as a single click can be felt with two clicks obvious, more so on the rebound adjustment. I can max out the rebound adjustment and make the bike a rigid frame showing how strong the damping is.