o.s. Speed B2104 Combo Set \n \nHere is the new o.s engine. Speed B2104 designed for 1/8 thermal buggy \n \nIt is a long running engine, its bore is 16.27mm and its race is 16.8mm. Thanks to this it offers a better response at low speed and a higher couple in mid-regime and a perfect idle. \n \nThe combo version is delivered with the O.S resonator. Speed TB03 (EFRA2155) and an 80mm elbow. \n \n Engine presentation: \n
The new Piston shirt ensemble is 3 transfers, this architecture offers more torque on a wide power range. \n
The new crankshaft benefits from a \"DLC\" surface treatment limiting friction and two tungsten masselottes for perfect balancing \n
The new housing cap has an insert that received a surface treatment in order to limit friction of the rod and thus prolong the lifespan. \n
The intake and exhaust lights have been redesigned to optimize flows \n
The carburetor is the type 22nd, having proven itself on the B2103 type R \n
The cylinder head is cylindrical and standard height