Tooth count on rear spocket.

Discussion in 'Transmission' started by Jonk777, Feb 8, 2014.

  1. Jonk777

    Jonk777 Member

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    What is the tooth count on the rear spocket on a 1990 Fxlr that is stock.
     
  2. STEVE07

    STEVE07 Well-Known Member Staff Member Super Moderators

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    I am pretty sure that the stock sprockets on that bike are 32 front 70 rear.
     
  3. Slo-Ryd

    Slo-Ryd Junior Member Contributor

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    Steve is correct........ 32F-70R with a 1.5" belt.
     
  4. oldscoolz

    oldscoolz Member

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    here's a question about drive sprockets. i have an '02 flhri with 5 speed tranny. i'm not really interested in puttin in a 6 speed tranny, but would like to "gear it down" a little bit to run a little lower rpms at highway speed. not a big deal, but seems like changing the front sprocket when i'm replacing the belt would be easy enuff to do and could lower the rpms in 5th gear without causing luggin in 1st and 2nd. i would guess that maybe a decrease by one tooth might work. any thoughts? have any of you done this? is a different size sprocket even available?
     
  5. bigjmc

    bigjmc New Member

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    changing the front sprocket decrease by one tooth would raise RPM in all gears.changing rear sprocket decrease by one tooth would lower RPM in all gears.
     
  6. tourbox

    tourbox Senior Member

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    As bigjmc stated you need to increase the teeth on the front sprocket. There are several different tooth counts available in the After Market. Yours stock is probably a 32T
    tourbox