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  • guys, how to find out the mfg date of a tyre? i know there is a digit code with month and year but what other things does it consist of and where exactly is it situated?

    also, i heard there are two kinds of TL valves rubber and stainless steel? what should be the ideal price of these valves?

    and lastly, among zapper Q and C, which offers better grip? (i heard Q is bad on wet surfaces)
    If you can't explain it simply, you don't understand it well enough - Albert Einstein

    I think i know less than what you think i know.

    Comment


    • Hey guys, I own a Unicorn(one with alloys) its done about 25k kms and I am planning to change the tyres.

      Could you guys please suggest me the tyres that I should go for? I drive mostly in the city. Also please let me know the price.

      Comment


      • Originally posted by Aneesh@4GHz View Post
        Get Sirac Street 2.75 * 18 for front,had used it in a hunk,Good grip,in wet and dry conditions.
        thanks man

        Is it ok to put 3.0*18 ZaperQ on front tyre? in karizma?

        Comment


        • Originally posted by Praful View Post
          Has anyone seen the Michelin Sirac 120/90-17 in their city in the last 1 week or so?

          Please lemme know if you know there is a Sirac available anywhere,I'll pay for the shipping+tyre
          Michelin Sirac Tire. Size: 120/90-17 - 2,750.00Rs
          ____________________________
          If you think you don't need a helmet, you probably don't have anything in your head to save...
          http://oomphians.wordpress.com/
          A weekend in God's own country
          Monsoon ride to coorg-mysore
          Horsley Hills

          Comment


          • I just got these tyres an hour back:
            Michelin Sirac Street 2.75 * 18 for front
            Michelin Sirac Street 100/90-18 for rear
            Total 3300/- with bill and fitting. Dunno how good a deal it is. Any idea?

            Comment


            • Originally posted by nelson_sanjoy1 View Post
              I just got these tyres an hour back:
              Michelin Sirac Street 2.75 * 18 for front
              Michelin Sirac Street 100/90-18 for rear
              Total 3300/- with bill and fitting. Dunno how good a deal it is. Any idea?
              Nothing to worry bro,Its a good deal.Post pics of tire after fixing it!

              Comment


              • Rear tyre for Pulsar 220 F

                Hello guys!
                I own a Pulsar 220 F which has done almost 10,000kms so far with IRC tyres. The rear tyre has only 30% thread pattern left and i no where find the confidence to count on it. So here i am in the market to look out for the tyre. Please suggest me the options i have and along with price list if possible.
                Rear tyre size: 120/80 - 17
                Ride Safe
                Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, "Wow! What a Ride!"

                Ride Safe

                Comment


                • Originally posted by Anoop Desai View Post
                  Hello guys!
                  I own a Pulsar 220 F which has done almost 10,000kms so far with IRC tyres. The rear tyre has only 30% thread pattern left and i no where find the confidence to count on it. So here i am in the market to look out for the tyre. Please suggest me the options i have and along with price list if possible.
                  Rear tyre size: 120/80 - 17
                  Ride Safe
                  You have Zapper Vyde 120/80-17,Soft compund tires,offers good grip will wears out a bit faster.Then Pirelli Sport Demon 130/70-17 ,nearly 3600 or 3700rs,140/70-17 for 3800rs,Good grip in wet and dry conditions on road.Only lasts 15k.

                  Comment


                  • P220.. go for pirelli, they are the best...
                    sigpic

                    Tyre Sizes _ Spark Plugs

                    Headlight Focus _ Fork Oils

                    All India xBhp Couple Riders Thread

                    Ashtavinayak + Shirdi
                    Purandar
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                    Aurangabad
                    Kaas Plateu & Thoseghar Waterfalls
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                    • Originally posted by gautam_k View Post
                      guys, how to find out the mfg date of a tyre? i know there is a digit code with month and year but what other things does it consist of and where exactly is it situated?

                      also, i heard there are two kinds of TL valves rubber and stainless steel? what should be the ideal price of these valves?

                      and lastly, among zapper Q and C, which offers better grip? (i heard Q is bad on wet surfaces)
                      bump bump
                      anyone?
                      If you can't explain it simply, you don't understand it well enough - Albert Einstein

                      I think i know less than what you think i know.

                      Comment


                      • Originally posted by naren_mk View Post
                        Hey guys, I own a Unicorn(one with alloys) its done about 25k kms and I am planning to change the tyres.

                        Could you guys please suggest me the tyres that I should go for? I drive mostly in the city. Also please let me know the price.
                        Can anyone please help me out?

                        Comment


                        • Originally posted by princesirohi View Post
                          My earlier post was scrambled due to poor editing and xbhp not supporting tables......so i am posting again.....i m not able to delete that post....dont know why..?? ....anyway here it is ....
                          ------------------------------------------------------
                          @ Moderators: can you delete my earlier post, i am not able to delete or edit it.
                          -------------------------------------------------------------


                          While in this thread, a lot has has been discussed about tyres....the basics are still missing, so i thought its time to provide some basic info..

                          Deciphering a Tire Size

                          Motorcycle and dirt bike tire sizes can be expressed in 3 basic formats: Alphabetical, Metric and Inch. Each format tells you the tire and rim size.

                          Alphabetical Size Format

                          The alphabetical size format is mostly used on older bikes. Some current touring bikes still use the alpha size system. Most tire manufacturers use the metric tire size designations now. The size we will use in our example is MU90-16 B.

                          M====Motorcycle Code
                          U====Tyre Width Code
                          90===Aspect Ratio
                          16===Rim Size or Diameter
                          B====Load Range

                          The Motorcycle Code means exactly what it says. Tires made specifically for motorcycles are coded with an M.
                          The tire Width Code is just a letter to substitute for the width of the rim. The width codes below are for motorcycle tires with an aspect ratio of 80 or greater. A code of U means this tire will fit on a rim that is between 2.75 and 3.50 inches wide. Please note that the values in this chart are the RIM width not the Tire width.

                          Width Code-------Rim Size Range in inches
                          G ----------------> 1.60 - 1.85
                          H ----------------> 1.60 - 1.85
                          J ----------------> 1.85 - 2.15
                          L ----------------> 1.85 - 2.15
                          M ----------------> 2.15 - 2.50
                          N ----------------> 2.15 - 2.75
                          P ----------------> 2.15 - 2.75
                          R ----------------> 2.15 - 2.75
                          S ----------------> 2.15 - 2.75
                          T ----------------> 2.50 - 3.00
                          U ----------------> 2.75 - 3.50
                          V ----------------> 3.50 - 4.00

                          The Aspect Ratio is the tire section height divided by the section width (not tread width), multiplied by 100. The section height is measured at the center of the tire crown. The tread width is usually greater than the section width. The section width is measured from the middle side walls (above the bead, below the tread). It is multiplied by 100 to give you a whole number for the tire. So instead of .9 the tire is stamped 90.
                          Rim Size or Diameter is the outside diameter of the rim, also called the wheel size.
                          I have so far been unable to find a complete description and value set to explain the Load Range. When I find an adequate explanation, I will put it here.

                          Metric Size Format

                          The vast majority of tires manufactured and sold today come with metric sizing. The tire size we will use for our example isa 120/70ZR-17TL. It can also be written as 120/70Zx17TL or 120/70ZR17TL.
                          Some manufacturers put the speed rating at the end of the size and do not indicate if the tire is tubeless or not. In that case the size would look like this 120/70-17Z.

                          120 / 70 Z R - 17 TL

                          120====Section Width (MM)
                          70=====Aspect Ratio (%)
                          Z======Speed Rating
                          R======Tyre Type
                          17=====Rim Size or Diameter
                          TL=====Tubeless

                          The Section Width is the width of the tire measured from the middle of the side walls (above the bead, below the tread).
                          The aspect ratio is the same as for alphabetical sizes and is defined above.
                          The Speed Rating is explained in detail below. For our example a speed rating of Z means this tire is rated for speeds exceeding 149mph.
                          The Tire Type can be either B for bias or R for radial. Most newer bikes use radial tires. Bias are still available for older bikes if you are going for authenticity.
                          Rim Size or Diameter is the outside diameter of the rim.
                          TL is a descriptive abbreviation. It indicates that the tire is meant for a tubeless application. The majority of modern motorcycles use tubeless tires. If your bike has wire spoke wheels you need to use a tire designed for use with a tube inside. All those spokes and nipples are not air tight. Not all manufacturers will add the TL to indicate that it is tubeless. It was used more when they were not as common as today.

                          Inch Size Format

                          The majority of modern motorcycles and dirt bikes do not use these tires. These were standard equipment on older machines. The Inch or Standard Inch Size Format does not include an aspect ratio. The aspect ratio on these tires is 100. Meaning the section width and section height are equal.
                          Also, inch size format tires are all bias type. They do not come in radial. The size we will use for this example is 4.60x17H 4PR. You may also see this written as 4.60H-17 4PR.

                          4.60 x 17 H 4PR

                          4.6====Section Width (Inches)
                          17=====Rim Size or Diameter
                          H======Speed Rating
                          4PR====Ply Rating or Bias Casing Strength

                          The section width and rim size are defined in the same manner as described for the Alpha and Metric size formats.
                          The speed rating is explained in detail below, but in our example, a speed rating of H means this tire is rated for speeds not to exceed 130mph or 210kph.
                          The Ply Rating is a descriptive abbreviation. It refers to the number of plys (layers) that make up the tire. For more on descriptive abbreviations, see sections below. For specific strength of the different ply tires, refer the tire manufacturers literature.

                          Dirt Bike Tires

                          Dirt bike tires are sold in both metric and inch sizing format but do not always have a speed rating. More often they are rated by terrain.
                          Descriptive Abbreviations
                          Sometimes a catalog will list a tire as TL, BL or RWL. These have nothing to do with the size or handling. They are strictly descriptive. They describe the look or another feature of the tire.

                          Abbreviation--------------Meaning
                          B -----------------------> Belted
                          Blk ---------------------> Black
                          BW ----------------------> Black Wall
                          NWW ---------------------> Narrow White Wall
                          OWL ---------------------> Outlined White Letters
                          PR or Pr ----------------> Ply Rating
                          RBL ---------------------> Raised Black Letters
                          RWL ---------------------> Raised White Letters
                          SW ----------------------> Slim Whitewall
                          TL ----------------------> Tubeless
                          TT ----------------------> Tube-type Tire
                          WW ----------------------> White Wall
                          WWW ---------------------> Wide White Wall

                          Tire Load Index Ratings in Pounds

                          In addition to the information listed above, tires can contain Load Index or Rating info on the sidewall. This refers to how much weight a tire can safely transport. It includes the weight of the bike and rider(s). Not all tire manufacturers make tires in all load indices. Dunlop, for example, starts at 33.

                          Load Index Rating = Carrying Capacity in Pounds

                          LI------lb ******LI------lb *****LI------lb
                          20------176 ****42------331 ****64------617
                          21------182 ****43------342 ****65------639
                          22------187 ****44------352 ****66------661
                          23------193 ****45------364 ****67------677
                          24------198 ****46------375 ****68------694
                          25------204 ****47------386 ****69------716
                          26------209 ****48------397 ****70------736
                          27------215 ****49------408 ****71------761
                          28------220 ****50------419 ****72------783
                          29------227 ****51------430 ****73------805
                          30------234 ****52------441 ****74------827
                          31------240 ****53------454 ****75------853
                          32------247 ****54------467 ****76------882
                          33------254 ****55------481 ****77------908
                          34------260 ****56------494 ****78------937
                          35------267 ****57------507 ****79------963
                          36------276 ****58------520 ****80------992
                          37------282 ****59------536 ****81------1019
                          38------291 ****60------551 ****82------1047
                          39------300 ****61------567 ****83------1074
                          40------309 ****62------584 ****84------1102
                          41------320 ****63------600 ****86------1168

                          Speed Ratings

                          SPEED SYMBOL: This indicates the maximum safe speed corresponding to its given load index at which the vehicle can be plied, under specified conditions.

                          Speed Symbol-------Speed Km / h
                          A1------------------ 5
                          A2------------------ 10
                          A3------------------ 15
                          A4------------------ 20
                          A5------------------ 25
                          A6------------------ 30
                          A7------------------ 35
                          A8------------------ 40
                          B------------------ 50
                          C------------------ 60
                          D------------------ 65
                          E------------------ 70
                          F------------------ 80
                          G------------------ 90
                          J------------------ 100
                          K------------------ 110
                          L------------------ 120
                          M------------------ 130
                          N------------------ 140
                          P------------------ 150
                          Q------------------ 160
                          R------------------ 170
                          S------------------ 180
                          T------------------ 190
                          U------------------ 200
                          H------------------ 210
                          V------------------ 240
                          W------------------ 270
                          Y------------------ 300


                          Load Ratings in Kg

                          LOAD INDEX: Index figure indicating the maximum load (mass), the tyre can carry under specified conditions.

                          Load Index--- TLCC* Kg
                          60----------- 250
                          61----------- 257
                          62----------- 265
                          63----------- 272
                          64----------- 280
                          65----------- 290
                          66----------- 300
                          67----------- 307
                          68----------- 315
                          69----------- 325
                          70----------- 335
                          71----------- 345
                          72----------- 355
                          73----------- 365
                          74----------- 375
                          75----------- 387
                          76----------- 400
                          77----------- 412
                          78----------- 425
                          79----------- 437
                          80----------- 450
                          81----------- 462
                          82----------- 475
                          83----------- 487
                          84----------- 500
                          85----------- 515
                          86----------- 530
                          87----------- 545
                          88----------- 560
                          89----------- 580
                          90----------- 600
                          91----------- 615
                          92----------- 630
                          93----------- 650
                          94----------- 670
                          95----------- 690
                          96----------- 710
                          97----------- 730
                          98----------- 750
                          99----------- 775
                          100----------- 800
                          101----------- 825
                          102----------- 850
                          103----------- 875
                          104----------- 900
                          105----------- 925
                          106----------- 950
                          107----------- 975
                          108----------- 1000
                          109----------- 1030
                          110----------- 1060
                          * Total Load Carrying Capacity.

                          Tyre Size Conversion

                          Tyre size conversion from metric to inche is very confusing and can not be done by simple conversion from MM to Inch. please use the table below to find out equivalent size. the major difference is that tyres with metric size are generally low profile tyres and Inch system was used earlier when tyres had square profile i.e. aspect ratio of 100%. Approximate equivalent tyre sizes are mentioned below


                          Motorcycle Tire Size Conversion Chart

                          Street Tire Sizes - Front

                          Alphabetical---Metric-----Std Inch
                          MH90-----------80/90------2.50/2.75
                          MJ90-----------90/90------2.75/3.00
                          MM90-----------100/90-----3.25/3.50
                          MN90-----------110/90-----3.75/4.00
                          MR90-----------120/90-----4.25/4.50
                          MT90-----------130/90-----5.00/5.10

                          Street Tire Sizes - Rear

                          Alphabetical---Metric-----Std Inch
                          MN90-----------110/90-----3.75/4.25
                          MP85-----------120/80-----4.50/4.75
                          MP85-----------120/90-----4.50/4.75
                          MT90-----------130/90-----5.00/5.10
                          MU90-----------140/90-----5.50/6.00
                          MV85-----------150/80-----6.00/6.25
                          MV85-----------150/90-----6.00/6.25

                          The above tire size conversion chart does not mean that these tires are universally interchangeable. They are to give you a point of reference when upgrading your older tires. Consult your motorcycle's manual or manufacturer's customer service department for correct replacements for original equipment tires.
                          Critical clearances, motorcycle compatibility and stability, load-bearing capacity, speed rating, radial vs. non-radial, pattern and tread compound requirements, inflation recommendations, and front-to-rear tire matching will all vary with tire selection.
                          Wrong selection can result in tire failure, loss of control with serious injury or death. You can also contact the manufacturer of the tires you want to put on your bike. They have reps dedicated to this stuff.

                          Check out this cool link for motorcycle tyre tread wear patterns......

                          http://www.rattlebars.com/tirewear/index.html

                          ________________________________________

                          I have Royal Enfield Thunderbird the stock tyre sizes are Front 3.25 x 19", 6/4 PR and Rear 3.5 x 19", 6/4 PR. Now a days tyres have sizes like 100/90,110/90 etc. How do i convert 3.25 x 19" size to 100/90 or 110/90 whatever it is?

                          Comment


                          • ^^ you can try 100/90 for front and 110/90 for rear, but i think you should get bullet tyres in india in inch size also.
                            sigpic

                            Tyre Sizes _ Spark Plugs

                            Headlight Focus _ Fork Oils

                            All India xBhp Couple Riders Thread

                            Ashtavinayak + Shirdi
                            Purandar
                            Raigad
                            Dapoli
                            Aurangabad
                            Kaas Plateu & Thoseghar Waterfalls
                            Purandar

                            Comment


                            • Originally posted by Aneesh@4GHz View Post
                              Nothing to worry bro,Its a good deal.Post pics of tire after fixing it!
                              Yes I will -after around 100km looks like Sirac streets are made for Indian Streets ...

                              Comment


                              • Hey guys.
                                I am using using Michelin Sirac 120/80 as my rear tyre on my Karizma-R. I am thinking of upgrading the front to the Michelin Sirac Street 2.75 * 18. I need your opinion guys.
                                HH Karizma (2007 - 2012)
                                RE Classic 500 (2012 - 2014)
                                Bajaj Dominar 400 ABS (2017 - Present)

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