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Tyre Help
Free DVD
In conjunction with Bike Tyre Store, we're offering all customers the opportunity to download what's the best tyre for my bike? absolutely free. This is an mp4 format rip of the original DVD featuring motorcycling journalist Chris Moss (Mossy). (43MB, estimated download time for 512Kbps broadband is 21 minutes).
You will need an mp4 player in order to view the video. You can download DivX Player free.
Top Speeds
| Speed symbol |
J |
K |
L |
M |
N |
P |
Q |
R |
S |
T |
U |
H |
V |
Z |
W |
Y |
| Speed (km/h) |
100 |
110 |
120 |
130 |
140 |
150 |
160 |
170 |
180 |
190 |
200 |
210 |
240 |
>240 |
270 |
300 |
| Speed (mph) |
62 |
68 |
75 |
81 |
87 |
93 |
99 |
106 |
112 |
118 |
124 |
130 |
149 |
>150 |
168 |
186 |
Load Index (LI)
| LI |
lbs |
KG |
LI |
lbs |
KG |
LI |
lbs |
KG |
LI |
lbs |
KG |
LI |
lbs |
KG |
| 19 |
112,7 |
77,5 |
36 |
181,7 |
125,0 |
53 |
299,4 |
206 |
70 |
487,0 |
335,0 |
87 |
792,2 |
545,0 |
| 20 |
116,3 |
80,0 |
37 |
186,1 |
128,0 |
54 |
308,2 |
212,0 |
71 |
501,5 |
345,0 |
88 |
814,0 |
560,0 |
| 21 |
119,9 |
82,5 |
38 |
191,9 |
132,0 |
55 |
316,9 |
218,0 |
72 |
516,0 |
355,0 |
89 |
843,1 |
580,0 |
| 22 |
123,6 |
85,0 |
39 |
197,7 |
136,0 |
56 |
325,6 |
224,0 |
73 |
530,6 |
365,0 |
90 |
872,2 |
600,0 |
| 23 |
127,2 |
87,5 |
40 |
203,5 |
140,0 |
57 |
334,3 |
230,0 |
74 |
545,1 |
375,0 |
91 |
894,0 |
615,0 |
| 24 |
130,8 |
90,0 |
41 |
210,8 |
145,0 |
58 |
343,0 |
236,0 |
75 |
562,5 |
387,0 |
92 |
915,8 |
630,0 |
| 25 |
134,5 |
92,0 |
42 |
218,0 |
150,0 |
59 |
353,2 |
243,0 |
76 |
581,4 |
400,0 |
93 |
944,8 |
650,0 |
| 26 |
138,1 |
95,0 |
43 |
225,3 |
155,0 |
60 |
363,4 |
250,0 |
77 |
598,9 |
412,0 |
94 |
973,9 |
670,0 |
| 27 |
141,7 |
97,5 |
44 |
232,6 |
160,0 |
61 |
373,6 |
257,0 |
78 |
617,8 |
425,0 |
95 |
1003,0 |
690,0 |
| 28 |
145,4 |
100,0 |
45 |
239,8 |
165,0 |
62 |
385,2 |
265,0 |
79 |
635,2 |
437,0 |
96 |
1032,1 |
710,0 |
| 29 |
149,7 |
103,0 |
46 |
247,1 |
170,0 |
63 |
395,4 |
272,0 |
80 |
654,1 |
450,0 |
97 |
1061,1 |
730,0 |
| 30 |
154,1 |
106,0 |
47 |
254,4 |
175,0 |
64 |
407,0 |
280,0 |
81 |
671,6 |
462,0 |
98 |
1090,2 |
750,0 |
| 31 |
158,4 |
109,0 |
48 |
261,6 |
180,0 |
65 |
421,5 |
290,0 |
82 |
690,5 |
475,0 |
99 |
1126,5 |
775,0 |
| 32 |
162,8 |
112,0 |
49 |
268,9 |
185,0 |
66 |
436,1 |
300,0 |
83 |
707,9 |
487,0 |
100 |
1162,9 |
800,0 |
| 33 |
167,2 |
115,0 |
50 |
276,2 |
190,0 |
67 |
446,3 |
307,0 |
84 |
726,8 |
500,0 |
- |
- |
- |
| 34 |
171,5 |
118,0 |
51 |
283,5 |
195,0 |
68 |
457,9 |
315,0 |
85 |
748,6 |
51 |
- |
- |
- |
| 35 |
175,9 |
121,0 |
52 |
290,7 |
200,0 |
69 |
472,4 |
325 |
86 |
770,4 |
530,0 |
- |
- |
- |
Conversion chart – motorcycle tyre sizes (approximation)
| Metric |
Inch |
Alpha |
| 80/90 | 2.75, (3.00) | (MH 90) |
| 90/90 | 3.00, (3.25), (3.60) | MH 90 |
| 100/90 | 3.25, (3.50), 3.60 | MJ 90 |
| 110/90 | 3.50, (3.75), 4.10 | ML 90 |
| 120/90 | 4.00, 4.25, 4.25/85, 4.60 | MN 90, MP 90 |
| 130/90 | 4.50, 5.00, 5.10 | MT 90 |
| 140/90 | 5.50 | MU 90 |
Please note: Values given in brackets are theoretically possible, but not recommended.
American Alpha-Indication
| Alpha | Size |
Alpha | Size |
| H | 3.15 inch |
R | 4.50 inch |
| J | 3.50 inch |
S | 4.75 inch |
| L | 3.65 inch |
T | 5.10 inch |
| M | 3.75 inch |
U | 5.60 inch |
| N | 4.10 inch |
V | 5.90 inch |
| P | 4.25 inch |
| |
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