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What should I know before byuying a new tyre?

Speed Rating

Load Index

When do I have to replace the tyre?

How to maintain the tyres?

 

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What should I know before byuying a new tyre?

Most of the information you need to know about your new tyre is already visible on your current tyre or in your motorbike user manual. It is very important to always follow the manufacturer recommendation.

Choose a new tyre with the same:

  • Size
  • Load index
  • Speed Rating

Expert advice: The manufacturing date is stamped on the tyre. Locate the "DOT" number, the last 4 digits is the date you need to look for (1st 2 characters represent the week while the last 2 characters are the year). When buying new tyres, always check this number and don't accept anything which is older than 3 years.

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Speed Rating

Code km/h Code km/h Code km/h Code km/h Code km/h Code km/h Code km/h
B 50 E 70 J 100 M 130 Q 160 T 190 V 240
C 60 F 80 K 110 N 140 R 170 U 200 Z 240+
D 65 G 90 L 120 P 150 S 180 H 210 W 270
  (W) 270+
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Load Index

Index kg Index kg Index kg Index kg Index kg Index kg Index kg
30 106 40 140 50 190 60 250 70 335 80 450 90 600
31 109 41 145 51 195 61 257 71 345 81 162 91 615
32 112 42 150 52 200 62 265 72 355 82 175 92 630
33 115 43 155 53 206 63 272 73 365 83 187 93 650
34 118 44 160 54 212 64 280 74 375 84 500 94 670
35 121 45 165 55 218 65 290 75 387 85 515 95 690
36 125 46 170 56 224 66 300 76 400 86 530 96 710
37 128 47 175 57 230 67 307 77 412 87 545 97 730
38 132 48 180 58 236 68 315 78 425 88 560 98 750
39 136 49 185 59 243 69 325 79 437 89 580 99 775
  100 800
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When do I have to replace the tyre?

1. When it is worn.

The legal limit for the tread depth on the 3/4 of the tyre surface is to be more than 1mm at any point. While the rest of the 1/4 should have visible tread.

2. Has a damaged sidewall.

Sidewall is not allowed to have any cracks, damages or tears even if it is repaired.

3. Too old

As rubber doesn't age with grace, the older the tyre is the harder it is hence it loses it's grip. As a rule of thumb, any tyre older than 10 years old, irrelevant of the tread depth, is recommended to be replaced.

Expert advice:

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How to maintain the tyres?

Protect your tyre from:

  • Sun
  • Agressive chemicals and petrol
  • Oils, greases

Use special tyre care products and regularly check the tyre pressure (refer to the manual for the required pressure for your bike).

Expert advice: Always measure the tyre pressure before riding as the heat generated by the travel could increase the pressure by up to 0.5 bar.

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