Now that there's gravel groupset, gravel is bonafide category (not a niche). That allows a niche between gravel and road (e.g. Salsa War Road) and a niche between gravel and MB XC - (e.g. Open WI.DE.). Gravel/road isn't really new (other than new marketing/positioning), but gravel/XC is new. But I don't think gravel/XC (monster gravel?) will become that big.