You also get a noticeable gap between Large and XL and a slightly overbuilt look at the bottom of each shell band, which means if youre an inbetween rider, you may need a good dealer willing to swap cheek pads, tweak the liner, or let you spend real time in both sizes before you put your money down
Shimanos DIAFLASH technology reinforces the butt section with diagonally wrapped carbon tape, enhancing torsional rigidity and boosting pulling power when it matters most
A 2020 study by researchers at the UPMC Children's Hospital of Pittsburgh (Strotmeyer et al) found that "Approximately 75% of all bicycle-related mortality is secondary to head injuries, 85% of which could have been prevented by wearing a bicycle helmet." A recent study of 3854 injured cyclists (by Rivara, Thompson, and Thompson) concluded that "Prevention of serious bicycle injuries cannot be accomplished through helmet use alone, and may require separation of cyclists from motor vehicles." That's perhaps not surprising when you consider the relative mass and speed of a cyclist and an automobileand imagine what happens when they collide
You also get more fit customization with twist-dial systems that wrap the helmet securely around your head
Prepare for poop explosions (that may also end up on your clothes) or pee leaks