Nubbed grips for hand-rotatable bicycle gear shifters have longitudinally elongated groups of nubs (50) that are angularly spaced apart by valley regions (44). Preferably, the elastomeric nubs are formed both on a cylindrical portion and an adjacent flanged portion of the grip....http://www.google.com/patents/US5857387?utm_source=gb-gplus-sharePatent US5857387 - Nubbed grip for rotatable bicycle gear shifter