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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: 6.5 on December 26, 2012, 12:22:47 PM

Title: K75 Rear shock
Post by: 6.5 on December 26, 2012, 12:22:47 PM
I just bought a used k75 with 59,000 miles on it. The machine has a shortened rear shock because the previous ovner was short. I am 6 ft and could use the full lenth stock shock once again. I am wanting to purchase a new shock but am on a budget. Could you please reccomend a decent shock for the bike. I see a few aftermarket shocks on ebay for under $200.

Also I need to tackle the clutch and final drive splines as well as check valvle clearances.
 :mm
Matt
Title: Re: K75 Rear shock
Post by: Lawrence on December 26, 2012, 04:51:26 PM
I'm surprised you can find new rear suspension units for under $200.  I paid about double that sum for my Progressive Suspension unit, and I did a fair bit of shopping around before I pulled the trigger on that purchase. 
As for the spline lube and clutch service, if you do a search you'll find all the info you'll probably need to guide you through those procedures. Good luck.
Title: Re: K75 Rear shock
Post by: Chaos on December 26, 2012, 06:46:56 PM
Progressive 412's are decent shocks, Amazon has them for about 220 http://www.amazon.com/Progressive-Suspension-412-4016B-Standard-Replacement/dp/B0012TSYXS/ref=au_pf_ss_2?ie=UTF8&Make=BMW%7C31&Model=K75S%7C18267&Year=1987%7C1987&carId=006&n=15684181&s=automotive (http://www.amazon.com/Progressive-Suspension-412-4016B-Standard-Replacement/dp/B0012TSYXS/ref=au_pf_ss_2?ie=UTF8&Make=BMW%7C31&Model=K75S%7C18267&Year=1987%7C1987&carId=006&n=15684181&s=automotive)

If your short shock is in decent shape you should be able to get some $$$ out of it, especially if it is rebuildable and or one of the better brands.  (ohlin, works, wilber)
Title: Re: K75 Rear shock
Post by: frankenduck on December 26, 2012, 06:51:49 PM
Why do people feel need to say rear shock?  There's only one of them. 

Not picking on you as I do it too.  It's just a humorous observation.
Title: Re: K75 Rear shock
Post by: Ocelot on December 29, 2012, 05:12:56 PM
Why do people feel need to say rear shock?  There's only one of them. 

Not picking on you as I do it too.  It's just a humorous observation.

Possibly because there are so many oilheads around with a single front shock on the telelever.
Title: Re: K75 Rear shock
Post by: Chaos on December 30, 2012, 01:09:14 AM
Why do people feel need to say rear shock?  There's only one of them. 

Not picking on you as I do it too.  It's just a humorous observation.

Possibly because there are so many oilheads around with a single front shock on the telelever.

Not picking on anyone, but why do people say "front" telelever shock?  Oilheads only have one telelever and it's on the front.

Oh wait, maybe I am picking on anyone.  Or it's 1am and there's no beer left...........
Title: Re: K75 Rear shock
Post by: Ocelot on December 30, 2012, 10:03:36 AM
Why do people feel need to say rear shock?  There's only one of them. 

Not picking on you as I do it too.  It's just a humorous observation.

Possibly because there are so many oilheads around with a single front shock on the telelever.

Not picking on anyone, but why do people say "front" telelever shock?  Oilheads only have one telelever and it's on the front.

Oh wait, maybe I am picking on anyone.  Or it's 1am and there's no beer left...........
Perhaps because the odd doodad on the rear is a paralever.

Without beer, there is only chaos.

Title: Re: K75 Rear shock
Post by: Chaos on December 30, 2012, 12:04:25 PM
Paralever, telelever, front, back, it's all to much to comprehend.  Did you know my Ural has 5 shocks? :yow  :hehehe
Title: Re: K75 Rear shock
Post by: rut3556 on December 31, 2012, 09:02:29 AM
>>Progressive 412's are decent shocks, Amazon has them for about 220<<

I put the same one on mine, and it works just fine. Probably the best bang for the buck.
Title: Re: K75 Rear shock
Post by: Liverpool Brick on January 04, 2013, 05:06:28 AM
Hi Each,
Just posted about changing my "rear" [don't want to upset Chaos :)] shock without seeing this post first. Does the Progressive 412 change the ride height at all? I like the set up of the bike so don't want to change that, its just that the shock is done. I'm on the hardest setting and the back up is spongy as hell. The 412 does seem to be a good price.
Cheers
Andy
Title: Re: K75 Rear shock
Post by: Ocelot on January 04, 2013, 05:52:40 AM
The Progressive comes in a shorter version for a lower ride. Easier to get off the side stand. Harder to get up on the center stand. Harsher ride because the shock has less travel. My factory lowered 1990 K75C has the lower shock.
Title: Re: K75 Rear shock
Post by: Beemer01 on January 04, 2013, 04:35:18 PM
Check eBay - I've had a Works on my 85 and it was fine - also rebuildable when needed.