The best of both worlds. The GA3 combines the relief benefits and wrist support of ergonomic wing grips like the GP1 with the freedom of movement found in rounder MTB grips like GA2.Carbon friendly CNC Aluminium clampsReplaceable bar end plugsEnsures the correct hand position to prevent aches and painsHelps to reduce arm pumpSize; Large or SmallThe ergonomic shape fits the contours of the hand and significantly reduced arm pump on long trails whilst the wing provides support to ensure the correct hand position preventing aches and pains. Based on the well-known GA2 Grips, the GA3 was developed with mini wings. As a perfect extension of the GA grip series, the GA3 offers even more comfort on the trail, but also works perfectly on fitness or sporty urban bikes.Sizing Information:In order to help you maintain perfect control over your bike, your hands should not completely envelop the grip, which is why Ergon offers many grips in two size diameters Small and Large.The difference refers to the grip width (hand size), meaning a larger hand will have a more positive fit on a thicker grip, while a smaller hand is better fit to a smaller grip. For hand/glove sizes 6.5 to 8.5" we recommend Small, for 8.5 to 10.5" Large usually is better. To measure your hand/glove size you need to measure around the largest part of the hand over the knuckle while making a fist, excluding the thumb.