a PTE 34t ring is equivalent to a 36t round ring

Part Number: TL3306

Center-lock design

Ultra-durable casing has an additional ½ ply of 120 TPI casing for extra insurance against abrasion and sharp trail debris

it can adjust to ambient light and speed to save battery life

PEARL IZUMI Merino Trail 7" Sock - Unisex Compatio_Enriched a PTE 34t ring isIf you love the feel of Merino wool socks and want to wear it year around, look no further than the low bulk, high performance Merino Air. A 360 degree tension band around the arch provides a secure, smooth fit that is ideal for close fitting cycling shoes. The premium Merino wool blend wicks moisture with ease and is naturally antimicrobial, so your feet stay dry, comfortable and funk free. Premium Merino wool blend Wicks moisture Naturally