45NRTH Wolvhammer Boot Liner - Black Size 40 CheckoutSpec= 31.8 x 420mm Flat Protection Tread and Sidewall

Flat Protection Tread and Sidewall TPI 60 Color Black Weight 570 Defined Color Black ISO Width (mm) 40 ISO Diameter 622 / Road / 29" Tire Intended Use Gravel Tire Diameter 700c Tire Bead Folding Labeled Size 700 x 40 Tire Type Tubeless Ready Clincher

Also fits the disc brake rotor nuts with 16 external notches

Weight:  29

5 Thread Length (mm) 9 Front Axle Type 15mm Thru Axle Axle Diameter (mm) 15 Overall Length (mm) 158

45NRTH Wolvhammer Boot Liner - Black Size 40 CheckoutSpec= 31.8 x 420mm Flat Protection Tread and SidewallMoisture management is one of the most important elements of winter cycling and can make or break a ride. On long rides in extreme conditions having a spare pair of 45NRTH's Wolvhammer boot liners means you can ride confidently knowing that you have a dry fresh pair when you need it. For use with 45NRTH Wolvhammer boots (sold separately)