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Thread: 48T or 50T for DD

  1. #1
    apriliaforum newb
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    48T or 50T for DD

    Hi all. I’ve heard of the benefits of a 48t rear sprocket but has anyone ever tried a 50t? If so would you recommend one over a 48t? Didn’t know they made them until I saw that renthal make one
    Last edited by t_biker10; 02-14-2019 at 02:43 AM.

  2. #2
    apriliaforum expert High Country's Avatar
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    With the 15T front sprocket, that would give you a top speed around 110 mph, but it would also probably allow power wheelies with no clutch. I'd say in the UK where you don't have a lot of wide open roads for top speed runs it would be pretty good.

    If you don't plan to use the 15T front, I would not use a 50T rear. The larger rear sprocket is just adding weight (along with additional chain links). 1 tooth up front equals about 3 teeth out back. A 15/46 setup is the same as a 16/49 setup, and is lighter and cheaper to do.

    For a proper hooligan bike in the UK, try a 520 chain conversion, with 15/50 gearing.
    2009 Aprilia Dosoduro 750 (Adventurized: http://www.apriliaforum.com/forums/a...893274&thumb=1)

  3. #3
    apriliaforum prov-nov
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    I run 15-48, and I think it might be too much. For cruising at least, it's too much. But it accelerates like hell, power wheelies everywhere.

  4. #4
    apriliaforum expert High Country's Avatar
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    By the way, check out this website. You can load the information for your specific bike, then play with the gearing to see what will happen to rpm at the speed and gear of your choice.

    https://www.gearingcommander.com/
    2009 Aprilia Dosoduro 750 (Adventurized: http://www.apriliaforum.com/forums/a...893274&thumb=1)

  5. #5
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    Thanks all. I decided to go with the 15/48 setup. Can't wait to try it out

  6. #6
    apriliaforum prov-nov Kenai's Avatar
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    If have extra $$ upgrade to the 520 chain as well.

  7. #7
    apriliaforum expert High Country's Avatar
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    Quote Originally Posted by Kenai View Post
    If have extra $$ upgrade to the 520 chain as well.
    Absolutely! The only reason I didn't do it was that I replaced one sprocket at a time. If replacing both and the chain at the same time, the different size (lighter) chain costs about the same.
    2009 Aprilia Dosoduro 750 (Adventurized: http://www.apriliaforum.com/forums/a...893274&thumb=1)

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