Check the listing for details. Spank Spike 30 Sand Grips - 30mm Low Profile, Vibration Absorption, Durable. Condition: New. Listed at 29.28 USD. Low in profile, high in comfort. Designed from the ground up, the goal with the Spike 30 was to create a low profile grip while still assisting with comfort and vibration absorption. The low profile 30mm diameter provides maximum control with ample grip thanks to the Spank 'Human Factor' grip pattern. A cutout under the palm area aids with dissipating impulse shock, while the reinforced bar end area helps protect your bars from damage in the event of impacts. . Single lock ring design and smooth thumb zone. Reinforced bar end area Anatomical bar end design supports and protects the little finger Cut outs improve impulse shock, vibration absorption and comfort Interlocking columns support low profile fins to create a tread pattern which offers the benefits of both a finned grip and a low.