Can you use a ramped chainring on a single speed?- Mtbr.com
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  1. #1
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    Can you use a ramped chainring on a single speed?

    Can you use a ramped chainring on a single speed? What are the drawbacks? I have been looking for a 42t, 104 BCD, 4 bolt Unramped ring online, but have yet to find one. It may just be easier to go with a ramped one. Thanks for your time.

    Chris

  2. #2
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    I think it is very do-able, I use the 32T rings that came with my cranks. I think that sucess is going to depend on your chainline and proper chain tension.
    SB

  3. #3
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    Yeah but...

    Quote Originally Posted by ctxcrossx
    Can you use a ramped chainring on a single speed? What are the drawbacks? I have been looking for a 42t, 104 BCD, 4 bolt Unramped ring online, but have yet to find one. It may just be easier to go with a ramped one. Thanks for your time.

    Chris
    Also keep in mind that ramped rings aren't as beefy as your average dedicated SS ring. This shouldn't cause too much of a problem, other than wearing out more quickly. Some mashers might damage ramped rings from torque, ESPECIALLY if the chainline is off.

  4. #4
    "Mr. Britannica"
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    42t, 104 BCD, 4 bolt unramped ring

    ta-da.

    https://aebike.com/site/page.cfm?PageID=30&SKU=CR3658
    Lotsa guys here use these Salsa rings. AEBike also lists DH rings from Truvativ, Raceface & FSA, but not sure if they are unramped/unpinned.

  5. #5
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    Quote Originally Posted by roadiegonebad
    ta-da.

    https://aebike.com/site/page.cfm?PageID=30&SKU=CR3658
    Lotsa guys here use these Salsa rings. AEBike also lists DH rings from Truvativ, Raceface & FSA, but not sure if they are unramped/unpinned.
    Those Salsa rings are rock solid. I have a 42t 110mm 5-arm one on my 'crosser, and after several hundred miles no sign of wear even in SS mode. Notice how it's thicker in the places that get the most stress - you will not bend this ring, guaranteed. Of course at 95g it's pretty heavy for a ring of its size, but worth the weight IMO.

    That said, I've gotten away with ramped rings, although it always made me nervous. Never could make ramped cogs work - probably due to the slight eccentricity of my BB/crank combos they'd occasionally derail, usually on the worst terrain. I think ramped rings work better than ramped cogs because they engage so many teeth at once, apparently reducing the chance of accidental derailment.

  6. #6
    theHeadlessThompsonGunner
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    Yes...

    A ramped chaing ring will work, as long as your chainline is good and your chain taut. It'll make a bit more noise, but work fine.

    Take a look at Blackspire rings somewhere--your LBS might be the best place. They make RF's rings, and make lots of four bolt stuff. Also, make sure you check places that specialize in DH gear, as a 42t chainring might be classified as DH-sized by most folks.

    My Blackspire DS ring...
    <img src='http://gallery.consumerreview.com/webcrossing/images/IMG_0051(4).jpg'>
    "I've courted brain damage like some courtesan of darkness."


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  7. #7
    Ebo
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    Quote Originally Posted by ctxcrossx
    Can you use a ramped chainring on a single speed? What are the drawbacks? I have been looking for a 42t, 104 BCD, 4 bolt Unramped ring online, but have yet to find one. It may just be easier to go with a ramped one. Thanks for your time.

    Chris
    Check my response on your "Best Deals" thread. Bikeman.com can fix you up. Downhill rings....

  8. #8
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    easy for you to say...

    Quote Originally Posted by GlowBoy
    Those Salsa rings are rock solid. I have a 42t 110mm 5-arm one on my 'crosser, and after several hundred miles no sign of wear even in SS mode. Notice how it's thicker in the places that get the most stress - you will not bend this ring, guaranteed. Of course at 95g it's pretty heavy for a ring of its size, but worth the weight IMO.

    That said, I've gotten away with ramped rings, although it always made me nervous. Never could make ramped cogs work - probably due to the slight eccentricity of my BB/crank combos they'd occasionally derail, usually on the worst terrain. I think ramped rings work better than ramped cogs because they engage so many teeth at once, apparently reducing the chance of accidental derailment.
    I had slapped one of them Salsa rings to my 4 bolt LX cranks...I was about 5 miles to the end of my ride at Kettle Moraine, and on a climb, I bent the ring, and all the bolts landed somewhere in them woods...I had to walk the rest of the way...So I now use SPOT rings and the ENO ring proves to be pretty tough and badass.

  9. #9
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    Thanks for all your help so far...

    Thank you all for your help so far! What are the differences between a DH ring and your standard SS ring? I know that the DH ring will be beefier, but will it last longer, or is the weight not carried on the teeth? I'm not really concerned with the weight. Thanks for your help!

    Chris

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