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Wheel description TR polyurethane tread; hardness 95+/-3 Shore A. Aluminium centre. Ball bearing bore The housing is obtained by moulding and contains ball bearings series Z. Axle Axle composed of ground steel bush with bolt according to UNI EN 24017 and nut according to UNI EN 24032. Fixed bracket type EP Fixed bracket type EP. The fork is made of forged steel zinc plated finish. |