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Buell Forum » XBoard » Buell XBoard Archives » Archive through June 24, 2005 » How much is an xb12 flywheel/crank assembly? « Previous Next »

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Cryptic1911
Posted on Thursday, June 23, 2005 - 03:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm curious.. thinking about doing a nallin 1420cc kit &stg 3 heads on my xb9 but would need the xb12 crank/flywheel for the stroke. anyone got any insight into doing this?

i was looking at the baker xl6 kit the other day only to be dissapointed when i found that the xb's don't have the trapdoor tranny assembly : ( talk about being let down! the thought of 1420cc's and a 6spd was wicked
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Fullpower
Posted on Thursday, June 23, 2005 - 04:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

if you are gonna stroke it, go all the way. use the S&S 4-5/16" stroker flywheel assembley.with a 3-5/8" bore that gives 89 cubic inches, and they WILL rev to 7000 rpm anytime you want.
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Shazam
Posted on Thursday, June 23, 2005 - 05:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Cryptic, you won't need a six speed if you put an XB12 primary in it and a Freespirits "speed" pulley set on the back.

2800 rpm @ 80mph roughly

I would highly recommend the work.
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Wyckedflesh
Posted on Friday, June 24, 2005 - 02:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

FP I was unaware the S&S 4-5/16" kit would work in the XB cases...is that a new listing in S&S's stuff?
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Fullpower
Posted on Friday, June 24, 2005 - 03:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

you may be right, piston cooling jets could interfere. have to call S&S to verify.
makes a fun motor though.
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