If you have a 64BCD mounting size these are the chainrings for you

The internal battery is 65 x 18 x 18mm - at only 45g

With a 9-degree backsweep

Vendor: BR46018046004

It also doubles as a backpack

Dakine Berm Crew Socks - M-L - Grey - Red Ignore Wholesale Tier 1 Brand Rule If you have a 64BCDThis wool blend sock from Dakine is designed to enhance your comfort while out on the trail. Wool is known for being breathable and having natural odour fighting abilities and Dakine's blend of acrylic, nylon, wool, and spandex makes the most of these natural benefits while keeping things soft, comfy, and with great moisture wicking qualities. The crew height keeps things right in the sweet spot and arch compression keeps things snug while eliminating