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Thunderbolt

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bsa thunderbolt chopper
Here's my 1967 BSA 650 Thunderbolt rat chopper. Found it in a shed and hadn't seen sun for 40 years. Replaced the K/Q seat with a solo moved way back and up since I'm 6'4''.
chopper 650 BSA
Note the chop work where the swingarm was extended and tubes added to connect the swingarm to the backbone. Haven't seen one like this before. But hey back in the day this was done by a machinist owner so maybe the new chops can learn a trcik here. Engine rebuilt by the mechanic standing there. He's much shorter than me BTW. 10" extended forks and 4" extended swingarm. Tank back raised up to flow with the seat. I don't like forward controls since you can't stand to jump facing pending disaster so kept em stock.
    Chris


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