Seeking 10 lb Coil Balance

A quick learner from Brooklyn ny says:
January 10, 2020

i looking for balance spring series 180 & 10lb. the maximum i saw was 9 lb.
thank you..
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Paul from SWISCO responded:
January 13, 2020

Thanks for reaching out to us. Unfortunately, 9 pounds is the absolute strongest option that the manufacturer makes for the Series 180.

In order to get to 10 pounds, you'll have to use two 5 pound springs on each side. That'd be our S180-5. You'll also need a 15-086 secondary housing to accommodate the extra spring.
Tandem Coil Housing
Tandem Coil Housing
15-086
$1.68
5 lbs Series 180 Coil Balance
5 lbs Series 180 Coil Balance
S180-05
$4.37
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