Bicycle Chainstay repair


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flint
flint
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Hi all

attempting to repair my carbon bike frames chainstay (non-drive side). So far I have followed crack down through the chainstay and removed all delaminated carbon. There is now a nice 1" hole but the rest of carbon is solid. I have tried to cut in on either side of the hole using a fine rasp, so have a decent chamfer about 1 1/2" either side of the hole.

My plan was to just use multiple layers of Carbon Fibre 2/2 Twill 3k 195g, but having read a little more, I'm concerned this might not be enough to affect a decent repair, would I need to use some sort of UD fiber first?

Any advice gladly taken

Rod
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flint
flint
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Hi Warren

thanks for the reply! I have already bought the mini roll of 2/2 195g twill previously along with resin, hardener and shrink tape, and I will be testing repair fully on a static turbo trainer before I venture out on road with it.

I will be using different cuts of the cloth ie 1" strip,then  2" strip, 3" strip etc to build up the repair so it bridges the damage properly and provides greater thickness at the centre where the hole is. Can I do this in two sessions or is it better to complete repair in one go?

Thanks
GO

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