How Irish cyclists can cut risk of ‘vibration’ injuries on bad roads

Better still, go to 32mm and down to 50-60 psi - will make no difference to speed and a big difference to comfort.

If still an issue, they say the Redshift stem is a gamechanger - it's expensive and I haven't tried it yet, but all the Redshift stuff seems very well through out and innovative

Thanks to the OP for drawing attention to this. The article emphasises the health issues more than I would have done, but then it was written by the health editor. What my article provides is simple formulae for calculating the power loss and the vibration dosage caused by road roughness. These formulae depend on the idea that in a sense all roads are rough in the same way, so that the roughness is quantified by a single number called the roughness index. This surprising idea is not mine, of course, it is a well established notion of road engineers. The power loss and the vibration occur in the body of the rider, so one would think that the physiological characteristics of the rider's body would be important and might be very individual. But, in the case of power loss, these factors cancel out of the result, which only depends on the roughness index and the vertical compliance of the bicycle. (From a physics point of view, this is an astonishing outcome.) The general idea here is well known. But the result that only the roughness index and the vertical compliance matter, and can be combined in a simple formula to give the power loss, is new.

So cyclists can now compare the roughness resistance with the usual rolling resistance and with aerodynamic drag, and reach their own conclusions about the best solution for their style of cycling.

A substantially similar preprint version of the article can be found on ResearchGate for free. I am sorry that the final version on the publisher's website is indeed paywalled.

Just get a "Gravel" bike at that stage then..