Can I play too
They came on a bike I bought and luckily spotted it before I paid so was duly negotiated down. Still a pain as I’d of kept them for the build@d8mok. That is a right sod. Gutted for you mate
Exfoliation corrosion. Pretty common with 7075 alloys I believe.Atleast you got to it before it got you
Strange mark on drive side crank? Looks flaky like a bit of Welsh slate!
Intriguing how the machining marks have limited its progress on the side but not over the radius?Exfoliation corrosion. Pretty common with 7075 alloys I believe.
Looks like an RS8 that. Has this been on and off several bikes?
It's certainly making me wary of CNC cranks. I don't think the machining finish on them is particularly great! Seems odd to forge something then negate the benefits of doing so by machining through...Correcting myself - they are RS3. Seen this type of failure several times on this site.