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Thread: 70 alter - Quest For Top Speed

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    Default 70 alter - Quest For Top Speed

    bahi log aik gear dalta hy 70cc bike main jis ko alter gear khty hain wo kahin sy mily ga aur kitne ka mily ga
    aur bahi log jab bike bahot zeyada vibration karte hoto iska koi hal hy keya


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    Quote Originally Posted by wheelman84 View Post
    It is very easy. First thing to do is to check how fast can a CD70 go. Then take a marker and write 120 at that certain point on the speedometer. and Bamn!!! next time you go fast, CD70 will touch 120. Lol

    Jokes aside, a friend of mine owns a modified 1985 CD70 which he used for a very long tour of several borders of Pakistan in early 2000's. He is not into street racing and I am not sure if that bike can clock 120 km/h, but I have seen that bike easily keep up with CG125s even when carrying a pillion rider. Next time he is around, I shall ask him the details.
    An old cd70 in house it feel quite fast for a cd-70 I think the reason is old model cd-70 have shorter wheel base

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    sari kahani aik taraf.

    ye batao - cam timing aur valve lift kya hai aap ke "alturr" engine pe - ya "aik no. jenyan cam" chal rahi hai?
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by saboor73 View Post
    An old cd70 in house it feel quite fast for a cd-70 I think the reason is old model cd-70 have shorter wheel base
    shouter wheel base increases pickup but reduces speed mien is 1990
    i think weight also effect because old models weight less.....

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    Quote Originally Posted by saboor73 View Post
    An old cd70 in house it feel quite fast for a cd-70 I think the reason is old model cd-70 have shorter wheel base
    I dont think shorter or longer wheelbase has anything to do with a bike being fast or feeling fast. He modified his bike for riding in harsh conditions. One look at the bike and you know it means business. I dont remember all the details but he had replaced shocks, carb, and ignition system. Modified the exhaust, replaced tyres with fat ones. I dont know what else he had changed in the engine or modified. I never saw him racing anyone or riding fast but I can tell you one thing from personal experience, it was way more quicker than your run of the mill CD70.

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    Quote Originally Posted by Hassan1991 View Post
    shouter wheel base increases pickup but reduces speed mien is 1990
    i think weight also effect because old models weight less.....
    It is all relative to the centre of mass and power on tap. Bikes with shorter wheelbase are easier to wheelie than a bike with relatively longer wheelbase with same power and torque. So shorter wheelbase makes a bike feel quicker but in case of CD70, I dont think this will make a significant difference. Experts like Sir Xulfiqar can explain this better than I could.

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    Quote Originally Posted by wheelman84 View Post
    It is all relative to the centre of mass and power on tap. Bikes with shorter wheelbase are easier to wheelie than a bike with relatively longer wheelbase with same power and torque. So shorter wheelbase makes a bike feel quicker but in case of CD70, I dont think this will make a significant difference. Experts like Sir Xulfiqar can explain this better than I could.
    But weight effects.....older models were lighter then new ones
    The first step towards knowledge is to know that WE are IGNORANT

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    Friends Main ny apne super power main qingqi ka piston dala tha,bike pick aur long dono main ok thi,pr ajj bike seez ho gai hy,phly zoor ka jatka leya phir tick tick ki awaz start kr dee,maknic ny tapet etc check keye pr msla piston main hy
    plz kal suba tk jawab dain kah kon sa pistoin dlion bike main jis main bike phly sy zeyada speed maree

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    Quote Originally Posted by imrd.rd View Post
    Friends Main ny apne super power main qingqi ka piston dala tha,bike pick aur long dono main ok thi,pr ajj bike seez ho gai hy,phly zoor ka jatka leya phir tick tick ki awaz start kr dee,maknic ny tapet etc check keye pr msla piston main hy
    plz kal suba tk jawab dain kah kon sa pistoin dlion bike main jis main bike phly sy zeyada speed maree
    Cd100 yan United 100
    The first step towards knowledge is to know that WE are IGNORANT

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    110 ka kesa rahy ga

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    Quote Originally Posted by imrd.rd View Post
    110 ka kesa rahy ga
    110 konsi?
    The first step towards knowledge is to know that WE are IGNORANT

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    sd 110 ka piston

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    Quote Originally Posted by imrd.rd View Post
    sd 110 ka piston
    Dakh lena ka piston ki fitting same hai rod to nae change krna para ga sath chota cylinder ma jitna bara bore karo ga utni hi zeyada bike garam ho gii or seiz hona ka chance bhi zeyada ho ga
    The first step towards knowledge is to know that WE are IGNORANT

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    piston to bara hoga bro.aur cylinder ko bore ya zeyada hoga ya sleev dale ga

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    Quote Originally Posted by imrd.rd View Post
    piston to bara hoga bro.aur cylinder ko bore ya zeyada hoga ya sleev dale ga
    Bhai piston ager bara ho ga to bore hi ho ga cylinder ma
    The first step towards knowledge is to know that WE are IGNORANT

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    Max100 ka piston atha ha. Aaala cheez ha bhai.
    Par 53mm sa thora sa bara ha dia uska. So sleeve lagana paray ga.. Ya 110cc ka cylinder rebore karvana paray ga

    Sent from my Nexus 5 using Tapatalk

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    Quote Originally Posted by asjdsm View Post
    Max100 ka piston atha ha. Aaala cheez ha bhai.
    Par 53mm sa thora sa bara ha dia uska. So sleeve lagana paray ga.. Ya 110cc ka cylinder rebore karvana paray ga

    Sent from my Nexus 5 using Tapatalk
    brother cd100 ka piston ki fitting same cd70 ka piston jesi hai mean connecting road pe fit ho jata hai na
    The first step towards knowledge is to know that WE are IGNORANT

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    Main ny 107cm3 ka cylinder leya hy.pr iska sleev engin k ander ni jaa raha tha.hamare pas do treeky thy ya ham engin ka sorakh ko bore krwa late ya phir ham sleev ko side sy ragar date, hm ny Garnder sy sleev k bahir waly hisy ko ragar kr adjust kr leya hy

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    jab set kr k bike start keya to tick tick ki awaz aa rahi thi,jab khol k dekha to piston cylinder sy agy aa raha tha,piston bhi agy sy ura deya

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    phir ring daal k bike ko ready kr deya hy

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    ab 14 din running k

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