Originally Posted by
Bonzo Banana
[...snip]
This Tern broke with a child rider of only 43kg although admittedly its the hinge so rider weight may not be the main factor.
Another one here caught before breaking.
I think the failure mode is fatigue. Repeated stress cycles. Crack propagation. So not a small load of 43 kg at one instance, but cyclical loads over time.
With regards to the new bike frame cracks, are there any further details? When did it occur? Date of manufacture of the bikes? Are those on the recall list?