15/50 who's running it?
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  1. #1
    Senior Member RainWillFall's Avatar
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    I hope I'm not kicking a dead horse here but I just wanted to hear from some of you guys running the 15/50 sprockets. I'll be doing mostly gravel road riding and mild trails with some hills (no mountains) but on the pavement I would like to run 100kph (60mph) . Just wanted to know what kinds of gains/losses you experience with this set up? Btw I'm 5'11" 225lbs. So she'll be workin'!
    '09 TW200 - Black Jimbo Shield - Custom Oversize Foot Pegs - Tusk T-10 ATV Sport Bend Bars - Hammer Black Cycle Rack - Tool Tube (Muffler Style Mount) - 15/50 Sprocket - HID Headlight - Custom Mount Ducati Monster LED Tail Light - LED Turn Signals - Eagle Eye Running Lights - OURY Road Grips - Shinko 700 Trailmaster Front Tire.





  2. #2
    Senior Member r80rt's Avatar
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    Only a fool would attempt it, and God help me, I am that fool!

  3. #3
    Senior Member RainWillFall's Avatar
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    Thanks r80 I searched 15/50 but your thread didn't show up. 15t front on order I'm not going to bother changing the chain, the stockers only got 250 miles on it!



    Thanks for the leg work!

    Ryan
    '09 TW200 - Black Jimbo Shield - Custom Oversize Foot Pegs - Tusk T-10 ATV Sport Bend Bars - Hammer Black Cycle Rack - Tool Tube (Muffler Style Mount) - 15/50 Sprocket - HID Headlight - Custom Mount Ducati Monster LED Tail Light - LED Turn Signals - Eagle Eye Running Lights - OURY Road Grips - Shinko 700 Trailmaster Front Tire.





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  5. #4
    Senior Member r80rt's Avatar
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    Glad to 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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    Im currently running 15/50. I think its the best all around gear ratio for me. But im 5'6" and 150lbs + plus i live in indiana which has a pretty low elevation. I can still climb anything that the tw will go up with this gearing. If its really slow and technical i like the stock gearing. If your road riding mostly it would probably be ok. But if your doing much singletrack/hill climbing i would stay with the stock gearing. Honestly put in ear plugs and the bike sounds so smooth at 60mph. You wont hurt it. I ran mine with 15/47 gears on the interstate from knoxville TN to almost Indianapolis IN, 400+miles at 64-70mph.

  7. #6
    Senior Member niqhowie's Avatar
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    I was thinking of setting up a 15-52 setup. What chain would you use with a 15 50? 120 link?
    "Peace be the journey"

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  8. #7
    Senior Member lizrdbrth's Avatar
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    Yer thinking a bit backwards. 15/50=65 teeth.



    15/52=67 teeth. More teeth, more chain.



    The limiting factor on whether or not you can squeak by with a stock length chain when you have more sprocket teeth is how far forward you can shove the axle. If a stock chain is too long for your chosen combo it becomes how far you can set the axle BACK before you run out of adjustment. As long as it's only a couple tooth difference you usually won't have to sweat it. When you get to a 2-4 tooth difference it can sometimes be a game changer depending on how you arrive at your chosen ratios. Front sprockets are cheap, rear sprockets are not, and chains cost much more.



    Theoretically you'd want a 124 for that combo, but in reality you may get by with a stock length chain if there is room on the adjusters.



    15/50=3.33:1 final drive ratio. 65 teeth

    14/47=3.35:1 ' ' ' 61 teeth



    Nearly identical ratios, but the 14/47 MAY require a shorter chain.



    15/52=3.46:1 ' ' ' 67 teeth

    14/50=3.57:1 ' ' ' 64 teeth



    Close enough to the same ratios, but your 15/52 MAY require a longer chain.





    So you see you're only slightly higher (lower numerically) than the stock setup. Slightly better for chain wear but not much change in rpm, if that's what you're after. But you'd most likely need a new chain for your combo and it nearly duplicates stock, whereas changing only the front sprocket (cheap) to a 15 results in a significant drop with only a one link difference in the chain.



    I can explain it to you, but I can't understand it for you.

    Powdercoated '87 frame, extended swingarm, YZ fork legs, ATV tire, 14/55, XT350 tank, spliced quick-release seat, disc brake conversion, beeg headlight, beeger rack, Lizrdcooler, Lizrdventz and bunch of other stuff all covered in invisible ink.

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  9. #8
    Senior Member Tirebiter's Avatar
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    I put a 15/49 combo on my '95 last week and 122 link chain is perfect. I haven't rode it yet...lots of stuff still torn apart. I got a 15T for the '08 also and will see if the 122 link chain fits with the stock 50T rear. Probably do that Saturday.



    We don't do a lot of hard dirt riding or hill climbing. Deep sand is the worst we have to deal with.

  10. #9
    Senior Member lizrdbrth's Avatar
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    Not saying any of these combos will neccesarily require a new chain in the real world. Just showing Niqhowie that there's more than one way to skin a cat, and some cats may not even be worth skinning, dollar for dollar.



    Depends on what you're trying to accomplish. Personally I draw the line at 13 tooth sprockets, so I never get off cheap on my lowered gearing. It's longer chain and a rear sprocket every time.



    I can explain it to you, but I can't understand it for you.

    Powdercoated '87 frame, extended swingarm, YZ fork legs, ATV tire, 14/55, XT350 tank, spliced quick-release seat, disc brake conversion, beeg headlight, beeger rack, Lizrdcooler, Lizrdventz and bunch of other stuff all covered in invisible ink.

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  11. #10
    Senior Member RainWillFall's Avatar
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    Can't wait to try the 15T, sounds like what I'm looking for. I'd like to make it through the intersection / turn before grabbing 2nd gear on the road!
    '09 TW200 - Black Jimbo Shield - Custom Oversize Foot Pegs - Tusk T-10 ATV Sport Bend Bars - Hammer Black Cycle Rack - Tool Tube (Muffler Style Mount) - 15/50 Sprocket - HID Headlight - Custom Mount Ducati Monster LED Tail Light - LED Turn Signals - Eagle Eye Running Lights - OURY Road Grips - Shinko 700 Trailmaster Front Tire.





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