Slim diameter may not suit people with larger hands

Not quite big enough for a phone

A new SKF oil seal head and lighter weight damper oil reduce friction and provide a more supple ride-feel

Crankset compatibility:

5mm crank spindle spacers

Fox Mainframe MIPS Helmet - S - Trvrs Dark Maroon Envelope Shipping Slim diameter may not suitThe 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,