Hugely impressive shift quality

Hugely impressive shift quality. Happened across this whilst investigating possible issues arising from the use of a 53/34 combination. I need the 34 ring due to the combination of my size and the terrain I am currently riding but my 2005 Modane braze-on doesn’t work too well with a 50 throwing the chain far too easily. Took a punt on these as most forums seemed to suggest that a 16 tooth differential was the maximum realistic option using ‘normal’ rings. The shift speed and quality – even with the 19 tooth differential – is absolutely superb.

I could not be more pleased with this purchase. Many thanks