Spider Grips M1 Off-Road Grips (GREEN/BLACK) Not just another grip, these are acoustically engineered to rebound and absorb more vibration than any other grip on the market. The dual-layered M1 grips feature a full flange and a super-strong end cap ideal for off-road, dual-sport and motard riding.Vibration Dampening Core:Spider M1 grips are designed with a Vibration Damping Core. This Acoustical Rebound Layer is engineered with a specially shaped core with an innovative boundary layer. This gives you a grip with less vibration at the hand which reduces hand fatigue and arm pump, and also lets you listen to feedback from the machine and tailor your response accordingly.Traction Gel:Spider M1 grips feature Traction Gel - a specially formu This gives better control and less rider fatigue.