CRF250R/X 520 120 Link Chain O-ring

How to Install a Chain Master Link

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Honda CRF O-ring Chain from CZ Chain's. For most riders choosing this CZ O-Ring motorcycle chain makes a lot of sense. A hard-wearing sealed chain at good price. O-ring motorcycle chains are excellent in dusty, wet, muddy and grimy conditions. The O-Ring seals ensure dirt, sand and mud are kept out of the chain links and chain rollers. The O- ring design also contains a special lubricant inside the chain joints to ensure maximum wear life and excellent performance.

For chain specifications click Specs tab above.

Specially designed to work perfectly with all brands and any material front and rear sprockets.
CZ Motorbike Chain proudly made in Europe for more than 80 years.
Chain 120 links - Can be cut to length.
520 chain pitch.
Rated up to 55hp. 34,000 kN strength break.
Supplied with chain joining link.
Actual image of chain in gallery.
Note: This chain comes with a spacer for the CRF's to ensure clearance from the engine case. Check specs tab above for the dimensions of this chain.

(CZ520ORM105)

Chain	Pitch (mm)	Inner width (mm)	Roller diameter (mm)	Pin length (mm)	Plate thickness inner/outer (mm)	Middle static strenght (N)	Weight of 100 links (kg)	Connecting link	Type of sealing ring	Plates colour outer-inner
520 DZX	15.875	6.35	10.2	20.9	2.2/2.2	37800	1.78	RIVET (CLIP)	Active-ring	silver-black
520 ORH	15.875	6.35	10.16	20.9	2.2/2.2	35800	1.63	CLIP (RIVET)	Active-ring	yellow-black
520 ORMX	15.875	6.35	10.16	20.4	2.2/2	34500	1.59	CLIP (RIVET)	Active-ring	gold-black
525 DZX	15.875	7.94	10.3	22.8	2.4/2.2	40000	1.98	RIVET	Active-ring	silver-black