No longer manufactured. Only one last core left in stock. Soon there will be a new core of Bcomp. Probably in February 2020.
bCore QX Ski – light balsa wood 190 cm long, 14 cm wite, 1.5 cm thick
weight about 1100 g ( about 300 g more than bCore D200 )
Bcomp developed this core material for the ski industry. The engineers took the successful bCores D200 and D250 as a template and used balsa wood in four directions.
The balsa wood is processed lengthwise, upright and +/- 45 ° upright. Thus, the core connects the upper and lower belt.
With this core material, Bcomp sets new standards for freeride and touring but also piste skis for women. Wherever weight and handling is important.
QX Ski features
– Lightweight with an average density of 240 kg / m3
– High thrust intake
– Very high pressure resistance
– Good tear resistance of the straps
– High damping properties
– Incredible smoothness at high speed
– FCS certified balsa wood
How to calculate the right core thickness?
The bCores have a lower flexural stiffness than classical wood core.
Therefore the bCore has to be slightly thicker in order to reach the same flex stiffness as with a standard wood core.
For calculating the right thickness of the QX Ski you can use following core bending stiffness: 1950 MPa. Bcomp provides a tool for thickness calculation on their website. I have it also available.
The core thickness can be calculated compared to a conventional ash core ski with the same fibre layup.
Just sent the thickness and the width of the corresponding ash core and your fibre layup.
I’ll try to write a manual for the tool a plan to provide both on skibaumarkt.de, the tool and the manual.
The surface of the cores is quite porous. Thus, to minimize weight, the amount of resin used to glue the face has to be controlled.
Typically, count on 100-150 g/m2 resin for core-to-skin bonding. Additional resin will not improve the core-skin bonding.
Apply the resin just to the fibres and not directly to the core.
The core can be planed but it’s a bit sensitive. Just use very sharp blades and leave the core longer when planing.
Due to the vertical flax layer orientation the cores become a lot stiffer than you’ll expect before lamination. The flax bonds to the upper and lower fibre layer during lamination building strong torsion boxes.
Those skis we build with flax are very light and behave really well.
Tips for processing and assembly of the binding you’ll find here and here.
Within my “tipps” you’ll find two pictures showing how
to design the binding area. When not realizing it
tapered this will result in a predetermined breaking
point of your skis.
Price per piece