R bike designation question - BMW Luxury Touring Community
 
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post #1 of 4 Old Jul 21st, 2009, 3:32 pm Thread Starter
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R bike designation question

Being new to the "R"'s I am looking at getting a 1976 R75/6.

The designation is what I have a problem with

R = Air head (Air Cooled)
60 = 600cc
75 = 750 cc
80 = 800 cc
90 = 900 cc
100 = 1000 cc

What is the /3, /6, /7 mean?

Garry

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post #2 of 4 Old Jul 21st, 2009, 4:11 pm
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Re: R bike designation question

Quote:
Originally Posted by garry_kramer
Being new to the "R"'s I am looking at getting a 1976 R75/6.

The designation is what I have a problem with

R = Air head (Air Cooled)
60 = 600cc
75 = 750 cc
80 = 800 cc
90 = 900 cc
100 = 1000 cc

What is the /3, /6, /7 mean?

Garry
Those are model names, they don't have a meaning that translates into anything. I have a 1970 /5...

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post #3 of 4 Old Jul 21st, 2009, 5:59 pm
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Re: R bike designation question

Easiest way to answer is go to Wikepedia for BMW motorcycles. They show how it is designated and by what year.
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post #4 of 4 Old Jul 21st, 2009, 6:23 pm
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Re: R bike designation question

Quote:
Originally Posted by garry_kramer
Being new to the "R"'s I am looking at getting a 1976 R75/6.

The designation is what I have a problem with

R = Air head (Air Cooled)
60 = 600cc
75 = 750 cc
80 = 800 cc
90 = 900 cc
100 = 1000 cc

What is the /3, /6, /7 mean?

Garry
Actooly, the "R" refers to all horizontal opposed twins, whether air cooled ("airheads" (up to '95)) or oil-cooled ("oilheads" ('93-'04) and "hexheads" ('05-present -- evolved oilheads)).

The /2, /5, /6 and /7 were series or generation designations. In the U.S., the /7's were '77-'79, /6's '74-'76, /5's '70-'73. /2's were pre-'70 (back into the early '60's/late '50's? can't remember). From 1980 through the last of the airheads in '95, there were no "slash" designations.

Each "slash" change accompanied significant changes and upgrades over the previous series, and there were a couple significant changes/upgrades in the late '80's and early '90's (depending on your point of view, you may not view all of the changes as "improvements").

The next step is to learn what the letters after the model designations mean , i.e., R90S. R100S, R100RS, R100T, R100RT, R80G/S, R1150GS, R1100R, and a rather rare one: R100M. Then you can figure out which of these were /7's!

Welcome to fun and games with BMW trivia!

Mark Neblett
Fairfax, VA
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