JP Racing FX21 R9.S
JP Racing, the French engine tuning specialists, have released their new .21 circuit engine, the FX21 R9.S. Based on the current series of 9 port Novarossi engines this motor sports ceramic bearings, a 14.5mm crankshaft and a 8.5mm venturi plus a number of JP touches such as some hand tuning and a dark coated crankcase. JP have also released a slightly less high-end engine called the FX21 R7.S which has a 7 + 2 liner configuration and apart from the fact that it doesnt have ceramic bearings it the same as the R9.S.
Source: JP Racing [jpracing.com]