Casco O'Neal Matrix Solid V.23 Size:XS/S/M The long-sleeve underwear shirt is

The long-sleeve underwear shirt is guaranteed by Biotex’s experience

The new 12-speed Chorus groupset benefits from a new Chorus 12 chain that guarantees the same reliability and performance as the Super Record level

and mounting bolt depth are slightly repositioned and therefore the systems are not compatible with each other

Yes (spot check

Casco O'Neal Matrix Solid V.23 Size:XS/S/M The long-sleeve underwear shirt isComfortable and soft inside, extremely robust outside: the O'NEAL Matrix is a helmet that is a great companion for mountain biking, trekking tours, or daily city rides. While high performance material technologies make it particularly light and stable, the soft padding and well designed ventilation openings guarantee excellent comfort. Various features ensure a high level of safety and convincing comfort: INMOLD technology for greater stability and