Typical features of a mountain bike are wide knobby tires. Many coralline crusts produce knobby protuberances ranging from a millimetre to several centimetres high. Treads fall somewhere along the spectrum from smooth or slick to knobby. A wider, 25mm rim developed to better handle a wider knobby tire. They were fitted with knobby off-road tires and were not always street legal. The fenders were arched high, to make room for large, knobby dirt-racing wheels. The word is translated to "stumpy, or knobby". In the hand, the prominent, knobby ends of the phalanges are known as knuckles. Knobby handholds are frequent near the summit. The fruit is spherical, in diameter, with a knobby surface. Another section looks as if ice melted under the ground and formed a knobby terrain. Tylototriton is a genus of newts known as crocodile newts or knobby newts. Another variety of yuzu in Japan, with knobby skin, is called . Zitte has pursued Kott, following his helicopter to Dirty Knobby. Knobby Walsh was portrayed by Frank Readick and Hal Lansing.