an input member rotated by an engine output;

first and second clutch sections each having a plurality of driving clutch discs and a plurality of driven clutch discs, each driving and driven clutch discs being alternately arranged;

first and second output shafts rotated by a driving force transmitted from the first and second clutch sections;

transmission members for transmitting the driving force transmitted from the first and second clutch sections, respectively, to the first and second output shafts;

selecting mechanism for selectively pressing or separating the driving clutch discs and driven clutch discs, respectively, of the first and second clutch sections against each other;

the first and second output shafts extending substantially coaxially with each other and positioned radially inside the input member and selectively transmitting the driving force from the input member to the first and second output shafts in accordance with the pressing or separating operation of the selecting mechanism against the driving clutch discs and the driven clutch discs of the first and second clutch sections;

the first and second clutch sections are coaxially arranged with the first and second output shafts, the transmission members extend from either side of a group of the first and second clutch sections to the first and second output shafts such that said transmission member extends from opposing sides of said first and second clutch sections, and the selecting mechanism is arranged between the transmission members and is arranged radially inward from the first and second clutch sections.