Mystery Motorcycle - what is it?

Racing K Models

Re: Mystery Motorcycle - what is it?

Postby themike » Thu Jul 20, 2023 8:39 pm

That IS a BIG TWIN Flathead top end = 74 c.i./80 c.i., on a Sportster bottom
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Re: Mystery Motorcycle - what is it?

Postby Rubone » Thu Jul 20, 2023 9:47 pm

themike wrote:That IS a BIG TWIN Flathead top end = 74 c.i./80 c.i., on a Sportster bottom

The green bike yes, but not the original one he asked about, the KR hybrid.
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Re: Mystery Motorcycle - what is it?

Postby EKHKHK56 » Sat Nov 25, 2023 6:17 am

I have supplied heads and jugs over time to people with custom 45” W projects. 45” & 55”. Used K cams. The photo posted shows my friend Jonas Wickman’s Capitol “K” with new BigTwin mill built in conjunction with Anders and Co at FlatHead Power Sweden. Based on modern XL cases, the top end is 80” UL but all new and all alloy. Erik
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