On 4 March 1941, 500 troops of the British 3 and 4 Commando units with the company of 50 Norwegian sailors landed on the Lofoten Islands off the coast of northwestern Norway to destroy fish oil (used in German ammunition) refining factories and boats. The raid was a rousing success and almost captured a German enigma machine, until the German captain of the trawler Krebs threw his machine overboard. The raid did yield a couple of extra enigma rotors which helped in the longer term struggle to break the German codes.
For a war weary nation, though, the raid gave the Brits their first taste of real success against the Germans and put the Germans on notice that fighting the Btrits would not be a cake-walk.

Motorcycle Ride Recommendation

I've been to Narvik and northwards on the E-6 and eastwards on the E-10, but I have not travelled to the Lofoten Islands. If the roads there are the same as the rest of Norway, you'll be smiling.
Take the E-6 and E-10 from Narvik to Melbu. Then take the ferry from Melbu to Fiskebol. Then take the E-10 from Fiskebol to Svolvaer / Vagan, where some of the Commandos came ashore. Check out the Lofoten museum dedicated to the military actions in the area at Svolvaer.

Book Recommendation: Enigma: The Battle for the Code from AbeBooks.co.uk or Amazon.co.uk

Map Recommendation: Norway North Road Map: Narvik No. 3 from AbeBooks.co.uk