Deda Stem Failures

It was a normal Wednesday when someone posted a picture about a bike that had a failure.

Closer inspection showed a failed stem. The handlebars having been liberated – leaving no means to either steer, hold the bike straight, upright, or brake.

The bike was a brand new from Ribble with the stock configuration. This happened – downhill – at over 30mph.

Hands up who wants to use their nose / face / chin / teeth as a brake?


The rider escaped fortunately with minor injuries, I am guessing heading off onto grass pretty quickly. However – just the site of it had the scenario panning out in your head. Wincing – as you picture becoming a passenger on a very short journey toward an unsurprisingly hard, abrasive, and unforgiving surface – before dragging to a stop.


First of all the thread went on with analysing what they could see. Bolts popped, face plate pushed up, immediate fatigue at top bolts, snapped off, bars out. The rest is chaos and grimacing.

Focus turns to torque – improper fitting – bolt materials. Process of doing up diagonally in small increments, and the use of a torque wrench. Experience, professional and personal pours out – always concluding with well wishing – but then the tack changes.

It is pointed out that Deda stem’s have had not just faceplate issues – but safety recalls. Tens of thousands of units recalled (recalled / recalled / recalled) from various product lines.

Did you know about this?

Well do not feel bad – neither did I?

Deda stems – manufactured in both Italy and Taiwan – specifically the 100 – and I believe including the zero (of which I have *two* of that model in that length) have been recalled in the US.

So – next time you are hurtling downhill, and you hit a pot hole… or maybe that out of the saddle flat sprint wrenching at the bars with all of your might as the – glance down. Does it say Deda? Does it say zero? Is it 100mm length?

You may do well to get this a very close inspection, check the Internet on recalls, if not replace the thing as a matter of priority.


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