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the new bee hive springs
i am involved building a 1921 board track V Twin harley and it has that type spring they were interduced as early as 1909 i believe to the performance buss they are new but in 1914 harley with 30 lbs of closed spring pressure on the valve was racing around wooden tracks at 115 MPH the fastest car @ the time was around 25 MPH and max speed in a fighter plane was 65 in a dive hahahahaha jz
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