XTZ250 520-40T/13T

XTZ250 520-40T/13T "is a motorcycle model from Yamaha. Here is the relevant introduction:

Vehicle features: XTZ250 is an off-road vehicle based on the Feizhi 250 platform, which is quite common in the Brazilian market. It is equipped with a 249cc single cylinder engine that can output 20.5 horsepower and 20.6Nm of torque, paired with a five speed gearbox. Adopting a double cradle frame, the suspension system consists of a 220mm stroke periscope front fork and a 204mm stroke single gun rear suspension. The braking system is equipped with front and rear single discs and ABS system. In addition, it is equipped with an LCD dashboard that supports smartphone connectivity

Chain and sprocket specifications: "520" represents the chain specification, where "5" indicates that the length of each link in the chain is 5/8 inches, approximately 15.875 millimeters; 20 "indicates that the inner width of the chain is 2.0/8 inches, which is 6.35 millimeters. 40T "and" 13T "are the number of teeth on the front and rear sprockets, with 40 teeth on the large sprocket and 13 teeth on the small sprocket. This tooth number combination determines the transmission ratio of the motorcycle, affecting the vehicle's power output and speed performance. A larger transmission ratio can provide stronger torque, which is beneficial for acceleration and climbing, but may reduce high speeds; A smaller transmission ratio can increase high speed, but torque output may decrease

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