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  1. #1
    mtbr member
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    Derailleur hanger mounting bolt for Yelli Screamy

    I busted a derailleur hanger on my Yelli Screamy and the mounting bolt was impossible to remove, even with the chainring bolt tool.

    I finally had to resort to drilling the bolt out, which meant I had to use a new chainring bolt. I tried several single ring chainring bolts and they were all a couple of mm's too long.

    Has anyone found a good chainring bolt that can replace the derailleur hanger mounting bolt? For now, I used a spacer to tension it and it seems to work.

  2. #2
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    I would like to know this too, same issue here.

  3. #3
    Canfield Brothers
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    Quote Originally Posted by hrdude View Post
    I would like to know this too, same issue here.
    A single ring chainring bolt is what you are looking for... any LBS should be able to help you out...

  4. #4
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    In checking, single ring chainring bolts come in widths ranging from 4mm-6mm depending on brand. The one that came with my Yelli had been crudely ground down to make it fit (rough, jagged edges & was not re-useable). My LBS had to make a replacement by filing one down to custom fit. Since Canfield doesn't include one with the $43. replacement derailleur hanger can you let us know which width or brand is the best fit so we don't have to grind?
    Also, these bolts are sold in sets of 4+ which is more than anyone needs. It would be good if Canfield Bros. would include one with the purchase of a hanger.
    Last edited by hrdude; 01-13-2013 at 05:26 PM.

  5. #5
    West Chester, PA
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    Mine is loose too when the wheel is out, but it doesn't matter. The wheel bolts is what holds it in place.

  6. #6
    Canfield Brothers
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    Quote Originally Posted by hrdude View Post
    In checking, single ring chainring bolts come in widths ranging from 4mm-6mm depending on brand. The one that came with my Yelli had been crudely ground down to make it fit (rough, jagged edges & was not re-useable). My LBS had to make a replacement by filing one down to custom fit. Since Canfield doesn't include one with the $43. replacement derailleur hanger can you let us know which width or brand is the best fit so we don't have to grind?
    Also, these bolts are sold in sets of 4+ which is more than anyone needs. It would be good if Canfield Bros. would include one with the purchase of a hanger.
    Hrdude - Super sorry you had an issue with your bolt. I just checked with Lance and confirmed a 4mm-6mm single ring bolt will work as a replacement, however it's looking like you may need to file the 6mm a tad. I just did a little research with QBP and BTI and neither stocks anything less than 6mm.

    I will contact our factory have them ship me a handful of them over with the next batch of Yellis that will be shipping late next month. We don't include bolts with the $35 replacement hangers as typically you can re-use the stock bolt, however in the future if someone needs one, just let us know.

    Vin

  7. #7
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    Quote Originally Posted by KillingtonVT View Post
    Hrdude - Super sorry you had an issue with your bolt. I just checked with Lance and confirmed a 4mm-6mm single ring bolt will work as a replacement, however it's looking like you may need to file the 6mm a tad. I just did a little research with QBP and BTI and neither stocks anything less than 6mm.

    I will contact our factory have them ship me a handful of them over with the next batch of Yellis that will be shipping late next month. We don't include bolts with the $35 replacement hangers as typically you can re-use the stock bolt, however in the future if someone needs one, just let us know.

    Vin
    Vin,

    It would definitely be helpful if the hangers shipped with a new bolt. Most chain-ring bolts will not fit (too long) and in my case the bolt was impossible to remove and I had to resort to grinding it down.

    Cheers and thanks!

  8. #8
    Canfield Brothers
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    The chain ring bolt for the derailleur hanger is a 4mm. We are getting some as replacements and will be including it with the hanger as soon as we receive them. Until then, a 4-6mm length with a spacer will do the job. I'd like to thank you guys for pointing this out so we can make a better, more complete product.
    http://www.canfieldbrothers.com/frames
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