New JCOSTA gliding rollers BLUKIT composed by rollers.Blukit is the ultimate development from JCOSTA,a special set of rollers realized with a new raw material that grant a better increase of power and at same time a long life with a warranty of use till 8/10.000 Km. The BLUKIT can mount even on the oldest JCOSTA variators cause design and sizes are not changed, only the raw material..
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