Hi PM124,
Fav tour in Malaysia? Really depends on where you are as Malaysia is a pretty big country. Umm, cycling down the East Coast of Malaysia from Kota Baru to Kuantan is very nice coastal riding.
Cycling up Frasers Hill is nice too. Touring the island of Langkawi is fascinating.
Poodling around the historical cities of Malacca and Penang is v interesting too. Hope that helps

If you are on a folder, then consider using the excellent train. The Jungle Train that cuts into the heart of the Taman Negara National Park is breathtaking.
Where will you be entering Malaysia? North in Kedah, flying into KL or from Singapore?
Oldy