UltraStar 3 5.9g.
Third generation of the trickiest expander ever.
Weight: 5.9gr.
Expander: 7075 T6 CNC.
Compatible: standard 1'1/8 steer tubes, standard M6 preload bolts.
Diameters: min. 22.8mm max. 25.2mm.
Its safe and cool to insert and tune your expander anytime you need without damaging fork steer tube inner surface.
Carbon fiber steer tubes require it, steel insert sharp edges can induce fatigue failures.
Tunable in the standard internal diameters range, min. 22.8mm max. 25.2mm.
100% made in Italy
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user manual