Bos STOY RARE User Manual

We thank you and congratulate you for choosing BOS product, designed and developed by enthusiasts and handmade with care in France. Please refer to the user manual available in the download section at bosmtb.com. It contains the important safety, maintenance, and warranty information you need in order to safely install and use your BOS suspension as well as the detailed set-up, tuning, and service information.

Coil spring

The spring rate depend of the body weight and of the frame kinematic. Refer to the «Stoy chart list» available in the downlad area at bosmtb.com for details.

Spring preload

The SAG recommandation should be set to 30 – 40% of the shock stroke. The preload must not be exceed 4mm. Beyond, change the coil spring for a stronger rate.

Starting point adjustments from the fully tighten position

Quick start

handmade in France

Low speed compression (a): 12 clicks High speed compression (b): 15 clicks Rebound (c): 10 clicks