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Old 10-30-2012, 02:44 PM   #44
Airhead Wrangler
Adios Mexico
 
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Joined: Mar 2008
Location: Back in Seattle, FINALLY
Oddometer: 6,426
Quote:
Originally Posted by lucky6600 View Post
According to this, it has 40 mm and the 2 into 1 exhaust has a cat box under though?

http://www.motorcyclespecs.co.za/mod...r100r%2092.htm
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.
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Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
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