Length 35mm - 50mm

5mm crank spindle spacers

Not quite big enough for a phone

semi-integrated design and minimizes frame open holes for STEPS E-Bikes

Fox Mainframe MIPS Helmet - S - Trvrs Dark Maroon Envelope Shipping Length 35mm - 50mmThe Mainframe MIPS Helmet gives you exactly what you're looking for in an affordable helmet: proven safety features combined with easy trail style. Featuring extended coverage to protect more of your noggin', the proven MIPS impact protection will keep your brain safe in the event of a crash by absorbing and redirecting energies and forces that could otherwise damage it. With a lightweight fit system, the Mainframe MIPS Helmet will also keep you cool,