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Thread: 15/50 sprockets

  1. #1
    Senior Member r80rt's Avatar
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    I'd like some input from people who run a 15 tooth front and 50 tooth rear sprocket set up. I rarely ride off road, I'm a dirt road explorer that has to use two lane blacktop on occasion. How much lower end grunt is lost by going to a 15 tooth front? will it do 55mph comfortably? I'm not looking for a big change, just a little on the pavement. I live in the Arkansas hills, some of them are pretty steep.
    Only a fool would attempt it, and God help me, I am that fool!

  2. #2
    Senior Member mrbracket's Avatar
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    I run the 15/50 combo. I like it much more on the road. I haven't had a chance to get into woods yet, but I did play in the snow and it seemed fine, I spend most of my time in 2nd gear anyways when putting around.



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  3. #3
    Member Matty Moo's Avatar
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    I just put a 15/50 on mine. Cruises comfortably at 55 and you really dont lose any significant amount of low end grunt. 1st gear is still pretty low.
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  5. #4
    Senior Member r80rt's Avatar
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    Thanks for the reply's, I've had a 15 tooth sprocket on my shelf for two years, still trying to decide if I want to put it on. I appreciate the help.
    Only a fool would attempt it, and God help me, I am that fool!

  6. #5
    Senior Member small's's Avatar
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    Do it you will like it especially if your not doing serious hill climbing. I run a 15/50 and like it. I ran a 15/47 on my last trip which was all pavement and a little bit of dirt roading and it was fine even at 5,000-6,000'. I could tell a difference off road with that gearing but i still got around just fine. To me a 15/50 at 55mph feels like the stock gearing around 50mph. Im guessing 4-5mph difference at the same rpm. Im sure there is a chart somewhere were you can figure all that out.

  7. #6
    Senior Member r80rt's Avatar
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    Thank you. I have looked at the chart, but it much better to hear from someone who has done it. So far I have three positive answers, any one else running 15/50?
    Only a fool would attempt it, and God help me, I am that fool!

  8. #7
    Senior Member atleastbehandy's Avatar
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    I am currently running 15/47. This is great for city streets as second gear is all I really need. But there is not enough top speed power for my occasional highway trips.



    So I have a 49 tooth rear waiting to install when the snow melts. I think (*desperately hope) 15/49 will be perfect.
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  9. #8
    Senior Member Dark Sol's Avatar
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    I ran 14/44, 14/45 and 14/47 on my TW. 14/45 and 14/44 were OK until you try to use 5th gear.....there's NO power and I think such tall gearing is actually doing more harm than good to the engine since it just doesn't have the power to pull.



    14/47 was much better. 5th gear actually has some power to tackle moderate hills, wheras with 14/44 even the slightest incline will have you downshifting, especially at 45 or below.



    15/50 or 14/47 is definitely the way to go. If you're just exploring dirt roads and not really tight trails 15/50 would be perfect for you - the biggest advantage being a more comfortable cruise on the highway.
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  10. #9
    Senior Member r80rt's Avatar
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    Thanks guys, After a a day of playing with the sprocket-RPM calculator, and a hard objective look at where and how I ride. I've decided the factory got it right and the stock gearing is perfect for me.
    Only a fool would attempt it, and God help me, I am that fool!

  11. #10
    Senior Member Mhurchu's Avatar
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    I use the 15-50 as it sounds better around town. You don't gain anything in 5th and you don't lose anything in 1st, it just sounds quieter with less revs thru the gears. The top speed test is questionable / hills & wind, and if your stuck in some mud are a couple of t going to save you ? People find combo's they like. Try a few. reds

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