The 1988 Centurion Lemans was Tange
#2 with Tange 2001 Mangaloy forks and stays. The drivetrain was complete Shimano Exage Sport, including pedals. Wheels were Exage Sport hubs laced to Araya 700C rims. Gearing wasa 12-26T, 6 speed cassette paired with 42/52T chainrings. Bars and stem were Kusuki aluminum models. The saddle was a Centurion branded Vetta. Original price, $430 US and claimed weight of 24.5 lbs ( 56cm frame). Sizes included 46, 48, 50, 52, 54, 56, 58, 60 & 64 cm.
Based on what I can see, it does appear to be a 1988 model. The graphics are correct, as is the two tone, fade paint. The components do appear to be Exage Sport.
The Centurion model with Infinity and Light Action during this period was the Accordo.