hjc auto helmet size i91 Modular - Solid - Semi-Flat The helmet is Bluetooth DAKINE Mission 25L Snow Capacity:23L Model Family:Trek CrossRip

hjc auto helmet size i91 Modular - Solid - Semi-Flat The helmet is Bluetooth DAKINE Mission 25L Snow Capacity:23L Model Family:Trek CrossRip

DAKINE Mission 25L Snow Pack - Women's | REI Co-op

But, if your speed increases from say 15 mph to 30 mph, the wind resistance is at least 4 times as great, (and 9 times as great if you triple your speed) If you have a regenerating ebike, you could use regeneration to maintain the 15 mph so you're not wasting all that energy pushing you through the wind

Capacity:23L

Model Family:Trek CrossRip

Designed for urban agility, it's not just a mode of transport

The helmet is Bluetooth compatible with the 2nd GEN SMART HJC (sold separately)