Manco thunderbird

#1
Good morning, I picked up a Manco thunderbird roller. Was told it’s a 1975 but seems all the ones I can find online are 80’s 90’s. The frame only has one rear shock mount hole on frame (not 2 like all others) and no rear sprocket guard on frame ( was not removed). Has old style serial number tag with just serial numbers no model. Trying to identify the vintage. Any info would be greatly appreciated. Can’t find any info online. I’ll try to attach pictures. Started restore and mods.
 
#4
Also it had a clamp on kill switch on the handlebars that was chrome and a black plastic or bakelite lever. Not the welded toggle bracket
 

markus

Well-Known Member
#5
Also it had a clamp on kill switch on the handlebars that was chrome and a black plastic or bakelite lever. Not the welded toggle bracket

I edited and added some other info in your other post that had the actual photos (didnt see that one until after I posted what was above)
 
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