Hired a mountain bike from Lenno and cycled to Argeno then on the roads to Pigra and on up to M Costone, Cima delle Duaria then the Venini refuge. From there it is a short ride on tracks to just below the summit. I left the bike and walked the last few hundred feet.
The descent was a real adventure as I decided to go via the tracks etc back to Tremezzo town. Its about 5000' downhill and I only came off twice! Sadly I didn't carry a camera and I'm not going back. The views and scenery are amazing.