What Our Gearhead Experts Are Saying:"I've been running the Thrice OC Lock-On Grips on rough trail rides where hand fatigue usually becomes an issue by the second half, and the open core design makes a noticeable difference — the rubber actually flexes with your palm instead of just sitting rigid against it. The single-bolt clamp installs in minutes and hasn't budged through rocks, roots, or hard braking. If you've ever wished your lock-ons felt more like slip-ons, these are worth trying."Hand fatigue has a way of ending rides earlier than legs ever would. The SDG Thrice OC Lock-On Grips were built to push that limit further, starting with an engineering decision that sets them apart from conventional lock-ons: a section of the internal core has been deliberately removed, allowing the 20A-durometer rubber outer layer to flex and absorb vibration instead of transmitting it directly to the palm. The result is a grip that feels closer to a high-quality slip-on while staying mechanically locked to the bar. Every shaping decision on the Thrice OC reinforces that comfort-first philosophy. The oval profile fits the natural geometry of a closed hand, finger-shaped grabbers place knuckles right where control is most intuitive, and thin inboard ribs provide thumb dampening without adding bulk. A flared outer end adds leverage and protects bar ends through trail contact, while a tapered inner core keeps the grip from rotating under load. The single-bolt clamp keeps installation simple and the grip locked with zero play — leaving nothing between a rider and the kind of trail confidence that comes from knowing the contact points are exactly right.