Started reading up on fork offset and trail. Very confusing. But I figured less fork offset is better. The OEM fork of the Fortitude has 40mm offset and it's a great handling bike. Nearest aftermarket fork with nice looks used to be the Salsa Cromoto with 425mm length and 41mm offset. So I put that in for now. The resulting trail is more than that of the standard Fortitude at 94mm. No idea if that is any good though.