RATCHET RINGS, 42 TEETH, PRESS-IN AND THREADED TYPE, MATERIAL: STEEL, FOR HUB XD642SB USED ON NOVATEC MTB WHEELS (X4 SYSTEM) AND FOR HUB D542SB, DH42SB (XS SYSTEM - SYNERGY CANTILEVER).
THREADED TYPE WAS DISCONTINUED THREFORE RECENT HUBS ARE USING ONLY PRESS-IN TYPE OF RATCHET RING.
SPECIAL TOOL IS NEEDED TO REMOVE / INSTALL RATCHET RINGS.