1.Materail of the sprockets:1045 steel. 2. Hardness: 45-50 HRC 3. CNC finish line in both sides.

Informations about our sprocket:
Specifications:	Rear sprocket: 34T/35T/36T/37T/38T/39T40T/41T/42T/43T…...58T etc.
	Front sprocket: 13T/14T/15T/16T/17T etc.
	Chain: 415,420,428,428H,520 etc
Material:	A3# steel(SAE Q235), 45# steel(SAE 1045) and 16Mn steel.
Surfacefinishing:	Plate zinc, Sandblasting, Dull polish, Painting, Electrophoresis Paint, with the CNC machine line in the surface or as your requirement.
Heat treatment:	High frequency quenching and carburizing.
Packing:	Blister card, Slide blister, Poly bag, Color box, etc.
MOQ:	1000pcs per model
Main market:	South America,South Asia,  Africa, Mid-east, America, Europe,and worldwide.
Main Model:	SUPRA,SUPRA FIT NEW, JUPITER-Z, JUPITER MX, GRAND, RXK, SMASH,SHOGUN, VEGAR, GL100,SATRIA, TORNADO, KAZE, WIND, NEDTECH, LZG, KARISMA, GLPRO,GLMAX; TITAN 125,TITAN 150,TITAN FAN, BIZ100,BIZ125,BROS100,YBR2004; A100,AX100,BAJAJ, CG125,CGL125, CD110,YB100,RS125,WY125,V80,C50,C75,BS125,SY125, B120,TVS STAR,MB100,XL125,FR80,MB100,GN125 etc.

Sprockets