A straddle-type vehicle comprising: an internal combustion engine including: a first cylinder; a second cylinder disposed leftward of the first cylinder in a front view of the vehicle; a third cylinder disposed leftward of the second cylinder in the front view of the vehicle; a first exhaust pipe in communication with the first cylinder; a second exhaust pipe in communication with the second cylinder; and a third exhaust pipe in communication with the third cylinder, characterized by a first intake pipe in communication with the first cylinder; a second intake pipe in communication with the second cylinder; a third intake pipe in communication with the third cylinder, wherein each of the first, second, and third exhaust pipes (101,102,103) have different lengths, and each of the first, second, and third intake pipes (121,122,123) have different lengths, wherein a shortest of the first, second, and third intake pipes (121,122,123) is in communication with a cylinder with which a longest of the first, second, and third exhaust pipes (101,102,103) is in communication; and a longest of the first, second, and third intake pipes (121,122,123) is in communication with a cylinder with which a shortest of the first, second, and third exhaust pipes (101,102,103) is in communication. an internal combustion engine including: a first cylinder; a second cylinder disposed leftward of the first cylinder in a front view of the vehicle; a third cylinder disposed leftward of the second cylinder in the front view of the vehicle; a first exhaust pipe in communication with the first cylinder; a second exhaust pipe in communication with the second cylinder; and a third exhaust pipe in communication with the third cylinder, characterized by a first intake pipe in communication with the first cylinder; a second intake pipe in communication with the second cylinder; a third intake pipe in communication with the third cylinder, wherein each of the first, second, and third exhaust pipes (101,102,103) have different lengths, and each of the first, second, and third intake pipes (121,122,123) have different lengths, wherein a shortest of the first, second, and third intake pipes (121,122,123) is in communication with a cylinder with which a longest of the first, second, and third exhaust pipes (101,102,103) is in communication; and a longest of the first, second, and third intake pipes (121,122,123) is in communication with a cylinder with which a shortest of the first, second, and third exhaust pipes (101,102,103) is in communication. a first cylinder; a second cylinder disposed leftward of the first cylinder in a front view of the vehicle; a third cylinder disposed leftward of the second cylinder in the front view of the vehicle; a first exhaust pipe in communication with the first cylinder; a second exhaust pipe in communication with the second cylinder; and a third exhaust pipe in communication with the third cylinder, characterized by a first intake pipe in communication with the first cylinder; a second intake pipe in communication with the second cylinder; a third intake pipe in communication with the third cylinder, wherein each of the first, second, and third exhaust pipes (101,102,103) have different lengths, and each of the first, second, and third intake pipes (121,122,123) have different lengths, wherein a shortest of the first, second, and third intake pipes (121,122,123) is in communication with a cylinder with which a longest of the first, second, and third exhaust pipes (101,102,103) is in communication; and a longest of the first, second, and third intake pipes (121,122,123) is in communication with a cylinder with which a shortest of the first, second, and third exhaust pipes (101,102,103) is in communication.