Derailleur hanger mounting bolt for Yelli Screamy

[nybike1971]

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.

[hrdude]

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

[KillingtonVT]

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...

[hrdude]

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.

[92gli]

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

[KillingtonVT]

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

[nybike1971]

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!

[flymybike]

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.