was painted in Honda Racing tricolors, evocative of the Honda VFR750R. VT750C 52° V-twin, shaft drive At the 2003 Tokyo Motor Show, Honda exhibited a preproduction "low-and-long" 750cc Shadow kitted out in retro-style bodywork, equipped with shaft final drive and the Honda Ignition Security System (HISS) electronic anti-theft device. Honda dropped the ACE and Spirit models from the 750cc Shadow line for 2004, manufacturing just the new VT750C Shadow Aero model (chain-drive Spirit production restarted in 2005). The reengineered RC50E engine was still a 52-degree, liquid-cooled V-Twin, single-pin crankshaft configuration. SOHC cylinder heads still had two spark plugs and three valves, but were modified to increase the compression ratio. Engine tuning changes de emphasized peak power in favor of torque at low and mid RPMs. A 2‑into‑1 exhaust ended in a large muffler containing separate silencers for each cylinder (similar to that on the 750 ACE) as well as a catalytic converter. The dual CV carburetors of the RC44E motor were replaced by a single CV carburetor on the RC50E. A new steel-tube frame with lower frame rails moved the Aero's seat height further down than either of the models it replaced. Honda replaced the 2‑into‑1 exhaust with a 2‑into‑2 system for 2008 and subsequent model years, including the 2008‑2009 Shadow Tourer VT750T model equipped with a windscreen, saddlebags and passenger backrest. Except for North America, 2008 VT750C models had programmed fuel injection (PGM-FI) in place of the CV carburetor. Shadow Aero models were given PGM-FI in North America starting with the 2011 model year. Honda offers anti-lock brake options for the 750cc Shadow Aero. Early VT750CA models had front-wheel ABS only, subsequent VT750CS models replace the rear drum brake with a hydraulic disk brake, required for Honda's combined ABS (C-ABS) with individual control of front and rear brakes. Shadow Aero VT750C and VT750CS models remain in the American Honda line-up for 2019. VT750C2 In 2007 (the twenty-fifth year of the Shadow line) Honda sold three different Shadow 750 cruisers, the original chain-drive Spirit, the shaft-drive Aero and the first Spirit VT750C2. Canadian automotive journalist David Booth said "that the VT750C2 is essentially the mechanicals of the VT750C Aero mated to the styling of the VT750D Spirit, with a few essential tweaks." The C2 model inherited its 750cc engine from the Aero, with a CV carburetor for North America and a PGM-FI throttle body elsewhere. The VT750C2 Spirit came by