Rear shock rebuilding

Truckedup · February 05, 2018, 04:35:03 PM

I have a 96 900 monster and the rear shock seems to have lost some of it's dampening...The nitrogen has leaked out.I have worked on many bike shocks and front forks...The factory manual shows the procedure... Were can I buy a shock rebuilding kit?

ducpainter · February 05, 2018, 05:22:07 PM

What brand do you have?

It's my understanding parts are not available fort all of them.

Speeddog · February 05, 2018, 05:37:19 PM

AFAIK, no rebuild parts are available.

ducpainter · February 05, 2018, 05:42:48 PM

Quote from: Speeddog on February 05, 2018, 05:37:19 PM
AFAIK, no rebuild parts are available.

I think Eric had a source for seal blocks for some. I'm likely flashing.

Truckedup · February 05, 2018, 06:31:00 PM

I don't see a brand name on the shock but it looks just like pictures of a Sachs...So...not really any rebuild parts? That sucks...So the only option is a 600 buck Ohlins?

ducpainter · February 05, 2018, 07:30:35 PM

Quote from: Truckedup on February 05, 2018, 06:31:00 PM
I don't see a brand name on the shock but it looks just like pictures of a Sachs...So...not really any rebuild parts? That sucks...So the only option is a 600 buck Ohlins?

How about a used unit?

If the length is similar, the original spring might make it close enough.

Truckedup · February 06, 2018, 03:45:38 AM

Many used rear shock assemblies on Ebay for less than 150 bucks....But are they any better than what I have? Shocks are often removed because they are worn.. Or removed from a wrecked bike,but no guarantee it was good when the bike was crashed...A new basic Ohlins looks like the best bet right now...hey, it's only $550 ...................

ducpainter · February 06, 2018, 03:48:16 AM

...and many are replaced for a new stock Ohlins.

At least they are rebuildable.

koko64 · February 07, 2018, 09:48:19 AM

My local suspension bloke rebuilt the Sachs shock on a 95 M900.
I think he used modified Sachs and Showa parts.

Blackout · February 07, 2018, 10:04:02 AM

I should probably do that to my little 800 and keep it on the road. The registration just came due and I'm considering turning in the plate.

booger · February 07, 2018, 10:30:41 AM

If no rebuild parts available, then how do shops like Cogent and Traxxion and Race Tech go about rebuilding these? I've got the piggyback reservoir adjustable Sachs that I was thinking of getting revalved & rebuilt. Way cheaper than an Ohlins.

Howie · February 07, 2018, 10:36:23 AM

Parts are, or maybe were available from Race Tech and they are rebuildable. They are not available from Ducati. Question is: is it worthwhile? Probably not, since the chrome on the shaft is often worn away at 30K miles or so and, if you spring for better valving rather pricy. IMO better to go for new aftermarket.

Truckedup · February 08, 2018, 06:38:07 AM

Quote from: howie on February 07, 2018, 10:36:23 AM
Parts are, or maybe were available from Race Tech and they are rebuildable. They are not available from Ducati. Question is: is it worthwhile? Probably not, since the chrome on the shaft is often worn away at 30K miles or so and, if you spring for better valving rather pricy. IMO better to go for new aftermarket.

Worth while? If it cost $200 to have it rebuilt and lasts another 20 years , I'll be 90 or dead so no problem

I dislike putting a $600 shock on a $3000 bike...But I like the bike...

Truckedup · February 08, 2018, 09:31:36 AM

I wrote to Cogent...They replied back in a few hours

Quote

Hi Tony,

Thank you for contacting us about your suspension needs.

I can't tell with reasonable certainty whether the 96 M900 has a monotube or piggyback shock and it's been years since we have worked with one. There are even some references to Boge shocks on this bike. The shame of it is that I used to sell Ducatis and I can't remember now.

It may be rebuildable, but with Sachs we never know and there can be serviceability and parts issues and it can get expensive. We wouldn't be sure or be able to estimate repair until we had it in hand. I'm going to guess here, considering the issues/challenges we see with Sachs that you could be looking at about $400+ in rebuild costs.

Ohlins shows 2 replacements (infinitely serviceable with great performance) available and in stock. DU 044 is an S46DR1 monotube with rebound adjustment which retails @ $600 and we can sell @ $570 +shipping. The DU 440 is an S46HR1C1 with remote reservoir with compression and rebound adjustment which retails @ $875 and we can sell @ $790 +shipping.

Feel free to give a call M-F 10-5pm eastern if you have questions or would like to order. We're looking forward to working with you.

booger · February 09, 2018, 10:18:48 AM

So I just picked up a brand new-in-box OE Ohlins piggyback for S4RS off eBay for $500. Came with the wrench and a neoprene shock cover. Did I win? And should I fit it or send it out now for a rework before I install it?

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Rear shock rebuilding