In reply to MLC:
Well worth taking bikes. It's an easy ride up to 0771 7608 just after Creag Dallaig and Allt Elrig at which point the track on the N side of Allt Easgaidh changes from Land Rover wide to single track. It's an obvious place to leave the bike.
I've also tried the route up Gleann Fearnach which gives a much longer cycle and a shorter walk. It is tarmaced for a good bit. It's also a much less frequented route but despite this I prefer going up Taitneach and past Loch nan Eun - lovely spot.