from Wiktionary, Creative Commons Attribution/Share-Alike License.
superlativeform of knobbly: most knobbly.
Sorry, no etymologies found.
Conditions are usually very HOT and dry and it is tough cycling on volcanic lava rock, combined with sand, dirt and all kinds of nastiness ..... we were told to put on our biggest, baddest, meanest and knobbliest tyres for this section!!
Welcome to Auckland's knobbliest knees competition - we are officially the Southern hemisphere's whitest, pastiest poms!