- Displacement: 3,49 cc
- R.P.M. (max power): 46.800 RPM
- Bore x stroke: 16,12 x 17,10 mm
- Sleeve: ABC 7 ports
- Rear ball bearings: Ceramic
- Front ball bearings: Swiss steel
- Crankshaft: 14,2 mm Turbo
- Carburetor: Alluminium Slide Double Adj
- Glowplug: Turbo
- Exhaust position: Rear
- Fuel type: 16% nitro
F.T. Line .21 On Road rappresent the latest evolution of engines for the high competition in .21 On Road Class. The engine comes with a extra long stroke design to improve the power in all the rage of use. All parts used for this engine suffered a tough test sequence lasting over a year on racetracks around the world, then each component before being assembled are tuned and cecked personally by the expert hand of Mr. Voghera, which prepares and assembles the engine from beginning to end, select the best components for each piece ,for this reason every engine is unique and came with a certificate of authenticity thon at includes the serial number of the engine beside other information.
F.T. Line .21 On Road engine is supplied with: HAND TUNED triple balanced 14,2 mm ‘turbo’ silicone-filled crankshaft for improved fuel flow and reduced weight , super light & strong connecting rod made by special aluminium which has been checked ultrasonic , HAND TUNED hard chromed brass liner with tear-drop work on the ports , lightened CNC machined piston made from high percentage silicone alloy billet, ultra light weight cooling head, ceramic 14,2 mm main bearing and steel front bearing in SWISS quality, a complete CNC alu slide carburetor with 8.0mm. 8.5mm and 9.0mm venturi inserts, also in aluminium.