I made a comparative chart between the Van Nicholas Deveron and two of the Amazon models (ignoring the Mixte), with the sizes 520 for the Deveron and 540 for the Amazons marked.

Noting, of course, models listed on the website may not reflect trade-in models that are a couple of years old.



It is interesting looking at the differences in the models. I was surprised to see the Derailleur and Rohloff Amazon bikes show so many size differences (with the derailleur bike approaching typical road bike geometry).

If I was simply snagging the bikes and ordering, I would have probably also chosen the 52 to replace the 54.

However, looking at a few critical measurements, Stack, Reach, and Effective Top Tube, the 47 is much more similar to the OP's old 54 than the 52.

Interesting, the HeadTube lengths are most similar between the 54 & 52. Apparently the difference in the stack comes from the fork.

What a frustrating website to use. Things like tire/wheel size are buried in the configurator that doesn't like my computer.

I have to say, in this case, everyone dropped the ball.

Buying a €7000+ custom order bike, as a "trade-in", even ignoring the online configuration tools, one should have dug out the geometry chart, and did a side-by-side comparison between the OP's old bike and the new bikes. Probably actually measuring the old bike. That way one can keep surprises to a minimum.

The OP should have done that himself, and the shop should have insisted on the step.

Size differences would have immediately popped up.

I'm convinced the OP could ride either bike, but it would been good to catch the differences early and discuss the possible differences between the bikes.

It is possible the shoulder and arm issues are completely unrelated to the bike size. Some other injury or stress? Mattress? Getting OLD?