Mainline Mips midweight it stays torsionally stiff and

it stays torsionally stiff and stable at speed

Part Number: 4040

Diameter (Standard): 4 in

nutritional residues and winter storage grime off all surfaces of your bike with little to no scrubbing

2 x 2000mm

Mainline Mips midweight it stays torsionally stiff andGive credit where credit's due. Thank your mom, your legs, and your gear for giving you the opportunity to land that rocky gap. Made for going big, going fast, or both, the Smith Mainline is our pinnacle, downhill certified enduro bike helmet. Safety innovations like KOROYD and Mips provide energy absorbing impact protection so you have the confidence to get aggressive on the trail. It doesn't matter if you're slaying the EWS in Whistler or suffering