Combining low rolling resistance with a lot of traction the onza canis 275 x 225 folding tyre tread offers both the ferocity of the wolf and the reliability of your neighbours dog onza has used there rc2 compound which is a mixture of 2 compounds the centre of the tyre has a 65a compound which have great for rolling resistance and the life of the tyre the shoulder have a 55a compound which is slightly softer giving you grip and in the corners in all conditions thats why the canis is t