The Semi-Pro was the second to top of the line until 1977 and starting in 1978 Centurion dropped the Professional and the Semi-pro was the top of the line. its frame was a chromed Tange champion tubing that was then painted and pinstriped. Component group was Suntour Cyclone and Dia Compe Royal Grand Compe Brake system. 27" wheels until 1978 when 700c took over.
1977 Model:
1977 Catalog Specs.
| Frame Construction | Tange Champion No. 1 Double Butted Chromoly tubing. Forged tip |
|---|---|
| Fork | Tange Professional Chromoly Tubing Forged Ends |
| Lugs | Centurion Professional |
| Brake | Dia-Compe, Gran-Compe Black Side Pull |
| Chain | D.I.D. Chrome Plated |
| Crankset | Sugino Mighty Compe 42-52 Black |
| Derailleurs | Suntour Cyclone , Font and Rear. Finger tip or PDL-M Down tube shifter |
| Freewheel | Suntour Winner Steel 13-24 |
| Handlebar | Sakae World Randonneur Alloy |
| Headset | Tange Falcon |
| Hubs | Sunshine Pro-Am Low Flange |
| Pedals | MKS UR-K-Black |
| Rims | Araya 27" x 1 1/4.Alloy Clinchers |
| Tires | IRC 27" x 1 1/4" GSW HI-Racer Tires |
| Seat | Elina Super-Pro |
| Seatpost | Sakae RY-PI |
| Spokes | Stainless Steel Spokes |
| Stem | Sakae Royal |
| Extras | Toe Clip and Toe Strap, Fully Reflectorized |
| Frame Sizes | 21 1/2, 22 1/2, 23 1/2, 24 1/2, 25 1/2 |
| Colors | Pearlized Orange, Blue, Silver |
| MSRP | |
| Weight | 24 lbs (23 1/2" Frame Size) |
1978 Model:
1978 Catalog Specs.
| Frame Construction | Tange Champion Double Butted Chromoly tubing. Forged concave seat stay, Brazed on custom seat binder tube. Chromed forged drop outs with axle adjusters. Brazed on water bottle studs and Chrome lugs |
|---|---|
| Fork | Tange Chromoly Tubing Sloping Crown, Top Chromed 2 Point Bend Chromed Forged tips |
| Brake | Dia-Compe: Gran-Compe 500 Side Pull with Gran Compe Levers and gum hoods |
| Chain | Suntour Tran-Z Chrome |
| Crankset | SR New Royal Extra Super Light 42-52 170mm |
| Derailleurs | Suntour Cyclone , Front and Rear. Cyclone Shifters |
| Freewheel | Suntour Winner Steel Tran-Z 13-24 Silver |
| Handlebar | SR World Custom w/ Cloth Tape |
| Headset | Tange Falcon |
| Hubs | Sunshine Pro-Am Small Flange QR |
| Pedals | MKS UR-K with Toe Clips and Straps |
| Rims | Araya 700c 19.6mm Alloy Clinchers |
| Tires | Centurion 700 x25c 270gr Roadlite "Z" 90PSI Skinwall |
| Seat | Kashimax Racing Saddle |
| Seatpost | SR CTP-5 Laprade Type Alloy Fluted with Chromoly Dual Allen Key Binder Bolt |
| Spokes | Stainless Steel Spokes |
| Stem | SR New Royal Extra Super Light |
| Extras | Alloy Spoke Protector, Chain Stay Protector, Chrome Cable Clips, Fully reflectorized, Color Coordinated Pinstripe , Touch Up Paint |
| Frame Sizes | 21 1/2, 22 1/2, 23 1/2, 24 1/2, 25 1/2 |
| Colors | Pearlized Cobalt Blue, Pearlized Yellow |
| MSRP | |
| Weight | 21 lbs |
1979 Catalog Specs.
| Frame Construction | Tange Champion No. 1 Double Butted Chromoly tubing. Forged tip |
|---|---|
| Fork | Tange Professional Chromoly Tubing Forged Ends |
| Lugs | Forged Concave Seat Stays, Brazed on Custom Seat Binder Tube, Chromed Forged Dropouts with Axle adjuster, Brazed on Waterbottle studs and Chrome Lugs. |
| Brake | Dia-Compe, Gran-Compe 500 Side Pull with Gran Compe levers and Gum hoods |
| Chain | Suntour Tran-Z Gold |
| Crankset | Sugino Super Mighty Victory 42-52 With Drilled Chain-Rings 170mm |
| Derailleurs | Suntour Cyclone , Front and Rear. Cyclone shifters |
| Freewheel | Suntour WInner Steel Tran-Z 13-24 Gold |
| Handlebar | Sakae World Custom with Cloth Tape |
| Headset | Tange Falcon |
| Hubs | Sunshine Pro-Am Small Flange QR |
| Pedals | MKS UR-K-with Toe-Clips and Straps |
| Rims | Araya 700c 19.6mm Alloy Clinchers |
| Tires | 700c 25mm Centurion 250gr Road Racing Extra 100psi skin |
| Seat | Kashimax Racing Saddle |
| Seatpost | SR CTP-5 Laprade Type Alloy Fluted with chromoly dual allen key binder bolt |
| Spokes | Stainless Steel Spokes |
| Stem | SR New Royal Extra Super Light |
| Extras | Alloy Spoke Protector, Chain Stay Protector, Fully Reflectorized, Color Coordinated, Pinstriped, Touch Up Paint |
| Frame Sizes | 21 1/2, 22 1/2, 23 1/2, 24 1/2, 25 1/2 |
| Colors | Pearlized Yellow, Cobalt Blue |
| MSRP | |
| Weight | 21 lbs (23 1/2" Frame Size) |
1981 SemiPro (source Craigslist)
1981 Specs (need catalog to confirm).
| Frame Construction | Tange Champion #2 Full Chrome under paint |
|---|---|
| Fork | Tange Professional Chromoly Tubing Forged Ends |
| Lugs | Suntour GS dropouts |
| Brake | Dia-Compe, Gran-Compe 500 Side Pull with Gran Compe levers and Gum hoods |
| Chain | Suntour Tran-Z Gold |
| Crankset | Sugino Super Mighty Victory 39-52 With Drilled Chain-Rings 170mm |
| Derailleurs | Suntour Cyclone , Front and Rear. Cyclone shifters |
| Freewheel | Suntour WInner Steel 13-24 |
| Handlebar | Kusuki Medallion with Cloth Tape |
| Headset | Tange Falcon |
| Hubs | Sunshine Pro-Am Small Flange QR |
| Pedals | MKS Sylvan Pedals |
| Rims | Araya 700c 19.6mm Alloy Clinchers |
| Tires | ? |
| Seat | ? |
| Seatpost | SR CTP-5 Laprade Type Alloy Fluted with chromoly dual allen key binder bolt |
| Spokes | Stainless Steel Spokes |
| Stem | Kusuki Medallion |
| Extras | Alloy Spoke Protector, Chain Stay Protector, Fully Reflectorized, Color Coordinated, Pinstriped, Touch Up Paint |
| Frame Sizes | 21 1/2, 22 1/2, 23 1/2, 24 1/2, 25 1/2 |
| Colors | ? |
| MSRP | ? |
| Weight | ? |
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