Bonneville America Forums Forums Technical Forums Performance Mods FCR 39's

i have heard a little about these. a guy with a thrux over on the rat site has them and really likes them. but he had additional motor work. i also heard they can be a tad tricky to dial in. i have mikuni 42's on my bike, i feel they are to big for a stock motor to take advantage of them. althought my bike runs better with them i did not gain anything on a dyno. but that will all change this year. so in short if you plan on future mods then go for them, if not it may not be worth the expense unless you have the money and its not a big deal to you financially

Frank