Michelin Protek Max Tube - 26 x 1.85 - 2.3, 40mm Presta Valve road helmets High volume center blocks for

High volume center blocks for climbing and braking traction

and includes Z-link wire

SmartFlex Stretch padding on shoulder protects during crashes and falls

Like all other Proterra wheels

105x96mm CNC machined aluminum platform with 8 replaceable pins

Michelin Protek Max Tube - 26 x 1.85 - 2.3, 40mm Presta Valve road helmets High volume center blocks forThe Protek Max tubes feature a proprietary shape and construction that is extremely resistant to punctures. Contains liquid sealant that immediately closes small punctures to prevent air loss Excellent air pressure reteintion Square shape retains shape better and resists twistin during installation Excellent air pressure retention