"Stress corrosion in the part. New part has same dimensions but is slightly heavier - change in alloy? Also the space between the bearing tensioning screws and the bearing cover has been opened slightly presumably to stop moisture be retained and…"

"The BikeRumor,com (presumably USA) story https://bikerumor.com/2019/01/09/specialized-announces-steerer-tube-collar-recall-for-roubaix-ruby-diverge-sirrus/ is only recent, 9 January 2019 so ACCC seems to be pretty up to date"

"I guess it depends on the reporting chain and frequency of incidents. It also requires the ACCC to address the issue and they have a lot of recalls to process. I note that the ACCC notice has been amended to show a date range from September 2016 to…"

"I didn't realise the could be such a long delay between reported incedents and a recall but here is a discussion of a steering failure on one of these bikes on a Audax UK ride in May 2017, not confidence building for new…"

"Ooh. One of my club members had a picture of a burst cartidge. I'll forward this"

"and don't park the bike in the sun at the coffee stop. I just wonder how many cartridges from the same factory are sold with different brand names."

"That CO2 cartridge nestling under your arse could become a mini hand grenade. FIFY"