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Well, the 41mm FCR is a performance version of the production models.
The 39 + 40mm FCRs come on a lot of the new motocross bikes, mostly 250 and 450cc fourstrokes.
The 41mm FCRs you see for sale are on a rack and real easy to install.
The single carbs you'll see for sale on Ebay will be a bitch for someone who's not mechanically inclined to install.
That clear?
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'95 M900, '87 750 F1b, '95 GL1500, '86 Concours
Live to ride, ride to Lunch !
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