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Thank you for accepting me in this group. So much to learn from this forum. -- Daigo

Great article, Mac. I’d forgotten that SS full name included Tourist Trophy. Thanks Scott True terror is to wake up one morning and discover that your high school class is running the country. Kurt

See https://vintagebmw.org/forum/viewtopic.php?f=17&t=16549 Mac Kirkpatrick Glenmoore, PA "After all, what is adventure, but inconvenience, properly regarded?" C. Donahue

Thanks Mac I will follow up with Deves tomorrow to get the rings. Denny

More re Deves rings: For a Nikasil lined cylinder theirs is a cast ring with a 3 piece oil ring. Mac Kirkpatrick Glenmoore, PA "After all, what is adventure, but inconvenience, properly regarded?" C.

Clarifying: I used Deves rings in my non Nikasil engine rebuild and am happy with them. They replaced a set of BMW OEM rings that were not satisfactory in my case. Again, in the case of a Nikasil'ed

Deves rings were recommended by Randy Long for this application, ask them for the specific set number. They work great. See http://www.deves.com Mac Kirkpatrick Glenmoore, PA "After all, what is

Not trying to be too rude but maybe all the people who suggested you get Nikosil can now pipe in where to get the correct rings and the correct size. I love it when you get half the story. If my

My cylinders are currently being refinished and Nikosil coated at Powerseal. Powerseal does not carry the replacement rings needed to match this new coating. I would appreciate advice regarding who

There are many references now posted online at vintagebmw.org For instance, you can now see the R90S parts manual and owner's manual as well as many other reference materials for other models. Mac

A big factor in my decision to go with Siebenrock was the difficulty in finding somewhere in NZ that had compression plates to use while boring the cylinders. I have put my original barrels and

Siebenrock makes great kits such at that one, I have fitted two to my R80G/Ss and they run very well, more balanced than the stock 800 cc set up IMO. I wish I had known about that kit when I rebuilt

I fitted one of these when I was faced with a similar situation. https://www.siebenrock.com/en/ engine-parts/power-kit-1000cc/ 3035/power-kit-extra-1000cc- 97mm?c=691 (

Following the advice of this group to my earlier email, I have now sent my cylinders to PowerSeal to re-bore the cylinders and coat with Nikosil. The reason that I am having this work done is that the

"Overall, who makes the best quality motorcycle shocks?” Ohlins shocks for 90S?. What? I quite agree with Mac, with a different approach or point o view The questions are more likely for each of us

Harold, reference Ohlins products: About a year ago, I came across a person who worked within the motorcycle suspension business for years so I asked him to tell me frankly, "Overall, who makes the

Thank you Mac, I put Konis on my R75/5 and they were a huge improvement over the worn stock shocks. Ohlins are great, but they are sure proud of their product! Harold

Hi Harold, some time ago I bought a set of the last of the Koni shocks and fitted a set of original aluminum covers over these shocks. Koni is now out of business, but I hear good things about the

Mac, Thanks so much for sending this out and for doing the extensive work needed to compile all of this information in one place. I've been meaning to subscribe for a long time, and this was the nudge

Greetings to all members of the R90SWorldnet. I started this group over 20 years ago, and you are therefore special to me as we have a long successful history together. I would like to ask the