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HD4 bearing numbers?

PB Forum :: Ibis
HD4 bearing numbers?

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flag yeti930
Posted: Dec 23, 2023 at 5:49 Quote
I decided it's time to replace my self-repaired-but-still-rides-great HD3 and bought a used HD4 that should arrive in a week. In anticipation, I'd like to order new bearings now, but can't find the specs online. Can anyone help me out and list the numbers for the 8 bearings on this frame? I've replaced my HD3 bearings myself a couple times already, and have the tools, so I don't feel like buying the whole link assemblies from Ibis.

One more question: Does anyone know if the HD4 derailleur hanger is the same as the HD3?

Thanks!
flag Brentk660
Posted: Aug 26, 2025 at 19:16 Quote
Nice upgrade! The HD4 is a solid step up from the HD3. I don’t have the bearing specs offhand, but I’m pretty sure a few folks here have done the swap before. Did you already check the Ibis tech docs, or are they missing the info for the HD4?

 


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