Jingchong CD70 420 41T

The "precision punching CD70 420 41T" refers to the precision punching sprocket suitable for CD70 motorcycles, and the relevant information is as follows:

CD70： Usually refers to the Jialing CD70 motorcycle, which was a classic model widely used in China. It is known for its economy and practicality, and is deeply loved by consumers, especially in some urban-rural areas and rural areas. It is an important means of transportation for many people to travel

420： Representing chain specifications. The pitch of the chain in this specification is 12.7 millimeters, the roller diameter is 7.77 millimeters, the inner section width is 6.25 millimeters, the pin shaft diameter is 3.96 millimeters, and the chain plate thickness is 1.5 millimeters. This specification of chain is relatively narrow and suitable for motorcycles with small displacement and not particularly powerful power output. It can meet the transmission requirements of CD70 motorcycles, has certain strength and practicality, and is also relatively lightweight

41T： The number of teeth on the sprocket refers to the number of teeth on the rear sprocket. The combination of a 41 tooth rear sprocket and front sprockets with different numbers of teeth can form different transmission ratios. For example, if paired with a common 14 tooth front sprocket, the transmission ratio is 41 ÷ 14 ≈ 2.93. This transmission ratio enables the CD70 motorcycle to achieve a good balance between power and speed, suitable for daily riding and general road conditions. It has good power performance during starting, acceleration, and low-speed driving, and can also reach a certain speed on flat roads

Precision punching: refers to the manufacturing process of sprockets. Precision stamping is an excellent stamping process, which produces sprockets with fine dimensions and an accuracy of up to 0.05mm. They have the characteristics of being super flat and super round, with full gloss, good precision, and consistency. The small wheel adopts non oxidative co infiltration technology, with a high surface hardness; The large wheel adopts surface treatment technology for drilling parts, which improves performance stability. The precision punched sprocket can mesh well with the chain, reduce the jumping and noise of the chain during transmission, improve transmission efficiency and stability, and have a long service life, suitable for long-distance driving and smooth transmission with low noise conditions

Click to view the motorcycle model parameter table：

		Chain type	number of teeth
1	Alpha	420	36
2	Alpha	420	39
3	Alpha	420	41
4	Alpha	420	43
5	Alpha	420	46
6	pit bike	420	36
7	pit bike	420	39
8	pit bike	420	41
9	pit bike	420	43
10	pit bike	420	46
11	pit bike	428	36
12	pit bike	428	39
13	pit bike	428	41
14	pit bike	428	43
15	pit bike	428	46
16	CG/CB	520	36
17	CG/CB	520	39
18	CG/CB	520	41
19	CG/CB	520	43
20	CG/CB	520	46
21	CG/CB	520	49
22	CG/CB	525	39
23	CG/CB	525	41
24	CG/CB	525	43
25	CG/CB	530	39
26	CG/CB	530	41
27	CG/CB	530	43
28	dirt bike	520	36
29	dirt bike	520	39
30	dirt bike	520	41
31	dirt bike	520	43
32	dirt bike	520	46
33	dirt bike	520	49
34	dirt bike	525	41
35	dirt bike	530	41
36	139fmb	420	13
37	139fmb	420	14
38	139fmb	420	15
39	139fmb	420	16
40	139fmb	420	17
41	139fmb	428	13
42	139fmb	428	14
43	139fmb	428	15
44	139fmb	428	16
45	139fmb	428	17
46	CG/CB	428	13
47	CG/CB	428	14
48	CG/CB	428	15
49	CG/CB	428	16
50	CG/CB	428	17
51	CG/CB	428	18
52	CG/CB	428	19
53	CG/CB	520	12
54	CG/CB	520	13
55	CG/CB	520	14
56	CG/CB	520	15
57	CG/CB	520	16
58	CG/CB	520	17
59	CG/CB	520	18
60	CG/CB	520	19
61	CG/CB	520	13
62	CG/CB	525	14
63	CG/CB	525	16
64	CG/CB	525	18
65	CG/CB	530	13
66	CG/CB	530	14
67	CG/CB	530	16
68	CG/CB	530	18