Steel spring

Bos brings you a full range of springs for the Stoy, but also fitting to most of the other downhill shock availableon the market.
To purchase a spring, please check the two tables below.
Datas are listed as : rate (lbs/inches)  / stroke (mm) / lenght (mm).
The first table helps you to check the correct stroke and lenght depending of your Stoy.
If the spring you wanna purchase is intented for another shock, please refer to the manual to check the minimum strokee and the maximum lenght it can accept.
The second table lists all the springs available in our range.
Choose the rate you need, and check if you can find the correct stroke + lenght to fit to your shock. Then, select your spring below.

EXAMPLE :
You are the proud owner of a 222 mm Stoy ! You wanna change your spring for a  425. You can check in the first table that, for your shock, the stroke must be, at the minimum, 67,5 mm. The maximum lenght can't be more than 157,5 mm, to fit on your shock. In the second table you can see that a 425/73/150 shock is available. You just have to select it below to place your order !