K75 / K100 Swingarm Bearings

[Scud]

So glad that worked out - thanks for the update. That race looks perfect. Does this now imply that one of your siblings is the parent of a simian?   :hehehe   (i.e. you are a monkey's uncle)

I'll be following you on this procedure soon (well, as soon as my Guzzi gets back together*) - very helpful posts.  :2thumbup:

On the gearbox - I recently put Redline Shockproof heavy duty gear oil in my K75 transmission. It smoothed everything out noticeably.


*footnote - the swingarm bearings on my Guzzi LeMans are shot, and I am swapping the entire swingarm from a low-mileage bike. That's what made think of the suggestion for you.

[TimTyler]

... I recently put Redline Shockproof heavy duty gear oil in my K75 transmission. It smoothed everything out noticeably.

Thanks for the tip! I picked up two quarts today at Cycle Gear (branded as Red Line V-Twin Transmission Oil with ShockProof)

I'm pretty sure it's the same stuff. Red Line's site says "Same fluid as our unique Heavy ShockProof® Gear Oil".

[Scud]

Yeah - I think Redline is going after the large Harley market with that branding.

Anyway, since you have so much experience with your K75, I'l be especially interested to hear if you notice a difference with that oil in the tranny.  Wait till you see how sticky it is.

FYI - I run the same stuff in the final drives of my bikes. It's convenient to have just one type of oil for three trannys and three final drives.

[TimTyler]

I'm tempted to use it in the final drive but I'll probably stick with Mobil 1 75W90. I've had no problems with it for the 60k miles I've ridden the K75, and info I've read in this post.

[TimTyler]

Took a 60 mile ride today with the Red Line Heavy in the gearbox and I can't say I noticed any obvious improvement. Sure, it shifted smooth, but it did before anyway.

I did have an issue when I was downshifting from 3rd gear as I approached a red light and the the gearbox brought me all the way to 1st gear with just a single foot action. Good thing I had the clutch engaged and wasn't going too fast.

[Scud]

Good to know. Thanks for reporting your experience.

I think my bike had been neglected - so now I will assume that the big difference I noticed was due to other factors, such as old and degraded oil the transmission - or maybe not enough oil.