150R and 150RB sprockets
  • aboveall1
    Posts: 6
    Joined: Tue Feb 15, 2011 1:27 pm

    150R and 150RB sprockets

    by aboveall1 » Thu Apr 04, 2013 10:29 pm

    What are the stock front and rear sprockets for the small and big wheel?
    Thanks in advance
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    Joined: Tue Mar 14, 2006 12:21 pm

    by KevinM » Fri Apr 05, 2013 1:06 pm

    These are 2012/2013 tooth count for each and I believe it's the same on the earlier years.

    CRF150R Sm Wheel
    15T front sprocket
    50T rear sprocket

    CRF150RB Big wheel
    15T front sprocket
    56T rear sprocket
    09 CRF 450R
    07 CRF 250R
    45 plt /175 main /JD Red-5th pos
    FS 2 trns
    05 CRF 250X
    42 Plt /162 Main /JD Red Needle- 5th pos
    CRFsOnly Fuel Screw 1-7/8 trns out (2 turns winter)
    TwinAir PowerFlo Kit /Opened Airbox /White Bros E2
  • Casey303
    Posts: 34
    Joined: Mon Feb 06, 2012 1:18 pm

    by Casey303 » Sat Jul 20, 2013 2:36 pm

    I was told if I change my sprockets to different sizes I could get more low end power. I have the 150rb and was wondering if i changed them how many teeth I should do on both sprockets.

    2009 CRF150RB
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    Joined: Thu Apr 01, 2004 3:45 pm

    by crfsonly » Sat Jul 20, 2013 3:38 pm

    check out our RPM/Speed/Gearing calculator:

    http://crfsonly.com/howto/gearing/motor ... ulator.php

    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
    CRF Parts and Accessories: http://crfsonly.com

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