New modular flip-up helmet LS2 FF900 Valiant II White, with its popular 180o rotating chin concept, totally new and unique mechanism. Surpassing its predecessor the Valiant FF399, this convertible motorcycle helmet is the smallest and lightest on the market, super-comfortable for the most urbanites. 1New modular flip-up helmet LS2 FF900 Valiant II White, with its popular 180o rotating chin concept, totally new and unique mechanism. 1Surpassing its predecessor the Valiant FF399, this convertible motorcycle helmet is the smallest and lightest on the market, super-comfortable for the most urbanites.