Ergon GP4 Lock On Handlebar GripsErgon GP4 Lock On Handlebar Grips Full size comfort bar end delivers maximum hand positions, increased leverage and stability when climbing or during out of the saddle cycling when touring or on fitness bikes. The GP4 offers just a slightly larger bar end than the GP3, giving the rider even more hand positions. The bar end and the grip platform can be independently adjusted for the correct support angle and provides the perfect fit for your individual