• Products whose serial numbers has been altered, defaced or removed. Warranty procedure The owner should always refer to an approved BOS service center for any warranty claim. A proof a purchase is compulsory for any warranty claim. Otherwise the warranty claim will not be considered. Always contact BOS Suspension warranty department before returning any products that may fall under this warranty.
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1. Assembly Fitting your Idylle RaRe FCV onto your bike requires care and attention. For your safety, please follow these instructions. 1.1 The steer tube Before cutting the steer tube, first take some measurements: height of the headset, length of the frame’s head tube, height of the stem and then add 5 to 10mm.
To achieve the best performance from your BOS product, it is important to set your optimal pressure. The chart below will give you some base values based on your weight. Your specific pressure may vary based on your riding style and personal preference.
FCV System Your Idylle FCV is equipped with the frequency control valve system. This system has been carefully tuned at the factory to balance rider comfort and rider support. The system can be made more supple (and less supportive) or more supportive (and less supple) with an internal adjustment.
Caution : Oil changes and service should be performed at an official BOS service center. These are the only locations able to identify and resolve damaged or worn parts on your product, especially in the case of extreme shocks or premature wear...
IDYLLE Rare FCV 140mm Hydraulic side (right) 140 mm Air side (left) 20 ml Important : It is strongly recommended to use BOS Bi’oil. Changing the type of oil risks changing the fork’s performance and reducing the life of wear parts.
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Check the valve core tightness using a Schrader valve core tool. My fork has negative travel, is this normal? The BOS air spring is designed to lower the engagement threshold as much as possible. Therefore, it is possible on some bikes that there will be a small negative travel.
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My fork has been sitting for a couple of weeks and some oil came out of the seal when I rode it the first time. BOS seals can let out a little bit of oil when they have been sitting and dried out. Wipe off any oil, and none more will come out when the seal is lubricated again.
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