Shimano R8000 Crank Crack

Holy crap, that’s crazy!

And for practical examples, see @thanksshimano on Instagram.


Shimano R8000 crank arm cracked (no crash or accident just the bonded cranks unbonding) on drive side.
2 years and 3 months old and I have them on my winter bike so only used for technically half the time. Bought them from Chainreaction Cycles, complained on a warranty form and was told ‘very sorry but they are beyond their 2 year warranty’

Push harder, escalate, don’t take “no” for an answer, and use consumer laws to your advantage (they are often stronger than the manufacturer’s warranty). Use the well documented links above to demonstrate a systemic issue, and ask them if why they are selling a product with well-documented failures that they refuse to stand by.