Sprocket size help
  • Pnut450f
    Posts:31
    Joined:Sun Dec 01, 2013 10:38 am
    Sprocket size help

    by Pnut450f » Sun Jan 19, 2014 3:04 pm

    I have a 05 crf450r. It's been about 6 years since my last bike those one pulls like a train. Bit to much power I'm not as fit as I used to be can Bairly hold on lol. Is there any way to slow it down a bit 1st gear is a bit high what sprocket sizes would you recommend
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    JimDirt
    Posts:4406
    Joined:Sat Nov 25, 2006 6:31 pm

    by JimDirt » Sun Jan 19, 2014 4:36 pm

    You wont be able to slow down first gear only , any sprocket changes will affect all 5 gears equally

    If your looking to take away punch and do it cheaply , you can go from the 13 front to a 14 , that will be equivalent to about 3 teeth on the rear sprocket , but it will also bring your rear wheel forward quite a bit , and will affect how the bike turns and how much rear wheel traction

    If your going to experiment with different sprocket sizes , then buy a 120 link chain and 2 master links for it (1 should come with it) , then you could go 1-2-3 or more teeth in the rear for more subtle changes , or as i mentioned go to a 14 in the front

    Here is a link to the Gearing Calculator here on this site , when the page opens just click on the words
    "Click Here To Try The Gearing Calculator"

    http://www.crfsonly.com/forum/viewtopic.php?t=37723

    Hope that helps !
    2020 CRF450R
    2006 CRF450X
    Image
    Weiser , Idaho
  • Pnut450f
    Posts:31
    Joined:Sun Dec 01, 2013 10:38 am

    by Pnut450f » Mon Jan 20, 2014 1:17 am

    Cheers I've just orderd 14T front sprocket. So mayb down size rear sprocket 1-2 teeth.
  • User avatar
    JimDirt
    Posts:4406
    Joined:Sat Nov 25, 2006 6:31 pm

    by JimDirt » Mon Jan 20, 2014 11:01 am

    The 14 will be equivalent to 3 teeth on the rear , so try it with just the 14 and see how it feels before changing the rear , this way if 3 teeth is more than you like in feel , then you can go back to the 13 and just do 1 or 2 on the rear , the front is usually half or less price than the rear so its cheaper to try the front first to see if it does what you are looking for
    2020 CRF450R
    2006 CRF450X
    Image
    Weiser , Idaho

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