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Author Topic: speedo  (Read 2414 times)

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Offline alan1310

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speedo
« on: 29, August, 2008 - 11:48:58 »
tried to fit the free white  kelogs cycle computer the other day only to find that it only goes down to a 20" wheel i now have one from tesco but it does it in i think its called wheel factor does anybody understand what the fu*k that is and how do i make it work i neeeeeeeeed to know how fast i am going nnnnnnnnnnnoooooooooooooowwwwwwwwwwwwwwwww ::) ::)

c5martin

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Re: speedo
« Reply #1 on: 29, August, 2008 - 12:22:33 »
Hi,
go to my website
http://c5martin.co.uk
Click on C5HELP
scroll down page and you Will find how I fitted my cycle computer.




Offline alan1310

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Re: speedo
« Reply #2 on: 29, August, 2008 - 12:29:55 »
will look cheers mate

Offline alan1310

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Re: speedo
« Reply #3 on: 29, August, 2008 - 12:36:53 »
usfull place to put the magnet on but i still need to no the wheel factor whatever the hell that is
« Last Edit: 29, August, 2008 - 16:55:42 by c5martin »

jomac

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Re: speedo
« Reply #4 on: 29, August, 2008 - 20:11:14 »
the wheel factor is simply the diameter of the wheel in mm X 3.1416 so a 16" wheel X 25.4mm = 406.4mm X 3.1416 = 1276.75 or rounded up your wheel factor or circumference is 1277 enter that, but you can use a satnav with speed reading to double check and the speedo can be fine tuned by altering this figure, hope this helps

jomac

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Re: speedo
« Reply #5 on: 29, August, 2008 - 20:20:33 »
Sorry meant to add, if you want to fit the sensor to the front wheel as its easier to get to, the wheel factor is 958 for a 12"wheel