RENTHAL Sprocket - Blue - 50 Tooth 121U-428-50GPBU Replacement Boot Soles — Tech 5 '14-'15/Tech 7 durability and look

durability and look

Accordion panel on back and shoulder with HRSF polyamide stretch material on sleeve for an optimized fit and performance

tibia and shins

abrasion resistance and breathability Alpinestars race-proven hard Polyurethane (PU) knuckle protection system for superior impact and abrasion resistance

RENTHAL Sprocket - Blue - 50 Tooth 121U-428-50GPBU Replacement Boot Soles — Tech 5 '14-'15/Tech 7 durability and lookCNC machined from a specially enhanced 7075 T6 aluminum alloy Machined self cleaning mud grooves at each tooth to help prevent mud buildup and increase wear resistance Ultralight design is 66% lighter than steel, yet incredibly durable