90 miles???? You'll be lucky! I get about 40-50miles max, so need to keep that in mind and carry some extra fuel and plan the fuel stops on the route. Other than that, they are a great bike. I use 10-38 gearing on mine and although it will do more, usually keep to 50mph max on A roads. (Although we try and avoid main roads and keep to the small lanes between the green ones.) Easy to fit 2 Liters under seat if needed.