I have cycled it a few times from Ullapool to Inverness, the route I use is follow it to Contin stay on the A835 to Moy Bridge turn off onto the A832, follow to Muir of Ord. Stay on the A832 for approx 2.5 miles, then turn right into a minor road to Milton, follow this road which run's alongside of the Firth of Beauly, to North Kessok where you join the Cycle route over the Bridge. once across the bridge you can follow the cycle path into the city centre which will bring you very near to the Railway station. As you leave Ullapool there are a few steepish hills but over all the route is fairly quite