Originally Posted by Airhead Wrangler
That's a South African website. The rest of the world got 40mm bings on r100 models up through '95, but bikes built for the US market stopped getting them in '84. That collector box is only to increase exhaust system volume (volume as in cubic ____s, not noise level) for better running and has no catalytic converter function to it, despite people commonly referring to it as a cat.
This is correct. My 1992 is a UK model with 40's and the Euro switch gear were I can turn the head light on and off. Those are the only 2 differences that I am aware off... It was a lucky find, thank you for the GI that bought the bike in England and brought it back to the States. Thank you, thank you. I hope to never have to sell it.