The Speed B2103 Type S is a 3-port long-stroke engine with high torque at low-medium revs with progressive delivery and low fuel consumption. The crankcase, crankcase cap and carburetor feature a new design. The new DLC-coated crankshaft features two tungsten counterweights for smooth rotation and better balance. The B2103 Type S features a low profile cooling head with vertical cooling fins across the top to improve heat dissipation. An O-ring between the cooling head and the combustion chamber insert reduces vibrations while protecting against dirt thanks to a better seal. The new 22D carburetor guarantees high response and smooth acceleration.
Engine complete with T-2100SC exhaust and 85mm M2004SC manifold set.