In 1975, Honda revamped the 750 model line, which had evolved to become a reliable, comfortable tourer, with the addition of the CB750F Super Sport. This model was engineered to take the 750 back to its superbike roots with improved performance, handling, and braking combined with a more radical style highlighted by the four-into-one exhaust.
This model, originally thought to replace the CB750K, remained aside the K model in Honda’s lineup through the 1978 model year with few changes.
|1975/1976 F0/F1||changes from CB750K: lower gearing; 4-1 exhaust; increased fork trail; stronger swingarm; disc rear breake; “Euro” cosmetics|
|1977/1978 F2/F3||changes from F0/F1: Bigger valves and stronger bottom-end in 70bhp engine; accelerator pump; new front fork with twin brake disks; Comstar 5-spoke wheels; FVQ shocks|
|Model #||Year||Production Dates||Frame #||Engine #|
|CB750 F0||1975||01/75 – 02/75||1000002 to 1015054||2500004 to 25115085|
|CB750 F1||1976||03/75 – 11/76||2000003 to 2022317||2525094 to 2563530|
|CB750 F2||1977||11/76 – 05/77||2100011||E2600004|
|CB750 F3||1978||05/77 – 05/78||2200001||E3100001|
The CB750F was introduced in 1975 and offered in two colors, Flake Sunrise Orange and Candy Sapphire Blue. The bike featured a 4-into-1 exhaust with a plastic rear cowling around the seat painted the same color as the tank. The side covers were black. Spoke wheels were used with a front and rear single disk brakes. The engine and fork legs were silver which was the standard color for all the 750’s.
The 1976 CB750F1 was available in Sulfur Yellow or Candy Antares Red. The only change for this model year was the introduction of green gauge faces. The engine received a number of modifications after engine #2500004 including a new camshaft; new pistons producing a compression ratio of 9.2/1 and a new case without the primary chain oiler. The Final drive gear ratio was changed to 48/50.
The CB750 F2 of 1977 was available painted Candy Presto Red or Black. A red gas tank stripe with gold pinstripe accents was added. The side covers, rear cowling, and gas tank were now all painted the same basic color. Comstar wheels were added with dual front brake disks. The engine and fork legs were now painted black.
After engine numbers, CB750E-2600014 and CB750GE-1000014, the following modifications where made: New cylinder head with bigger valves (34/31mm i/o 32/28mm), larger combustion chamber, larger carb mount rubbers, stronger cam chain, new camshaft, stronger valve springs, new retainers, cotters, new pistons compression ratio 9/1. New rod bigend bolts and bearings, stronger clutch springs, additional fins on crankcase, larger fins on oil pan, “oil cooler” - finned plate between oil filter case and engine. Final drive 15/43 or 14/43.
The final CB750 model kept the Candy Presto Red and Black color options of the previous year. The only change from 1977 was a new graphic design for the “750 Four” side cover emblem.
|Engine type||Four-stroke transverse parallel single overhead cam four cylinder|
|Bore & stroke||61mm x 63mm|
|Ignition||battery/dual coils/ dual points|
|Charging system||12 volt, AC generator, voltage regulator, selenium rectifier|
|Carburetion||4, 28mm Keihin slid/needle|
|Lubrication||dry sump, 3.7 qt (3.5L) tank capacity|
|Primary drive||2 single-row chains; 1.985:1 ratio|
|Clutch||wet, 7 plate|
|Starting system||electric and primary kick|
|Transmission||5-speed, left-foot shift|
|Rear wheel sprocket||48-tooth|
|Drive chain||5/8in. pitch; 3/8in. wide, #530 chain|
|Front fork||5in. (127mm) travel|
|Rear shocks||5-way adjustable, 3.8in. (96.5mm) travel|
|Front brake||single-action hydraulic caliper; 11.7in. (298mm) disc|
|Rear brake||double-action hydraulic caliper; 11.7in. (298mm) disc|
|Front tire||3.25H19 rib|
|Frame||tubular steel, double downtube|
|Steering head angle||28 degrees from vertical|
|Front wheel trail||4.5in. (115mm)|
|Weight distribution||F/R %: 44.7/53.3|
|Ground clearance||5.6in. (142.2mm) at exhaust collector|
|Seat height||32.6in. (828mm) unladen|
|Handlebar width||31.8in. (807.7mm)|
|Handlebar grip height||43in. (109.2cm)|
|Footpeg height||Left: 13in. (330.2mm); Right: 12.4in. (315mm)|
|Instrumentation||speedometer, tachometer, tripmeter|
|Gas tank||steel, 4.8 US Gallon (18.2L)|
|Gas consumption||38.3mpg (16.3km/L)|
|1/4 mile acceleration||13.10 sec, 101.5mph (163.3kph)|
|Stopping distance, 30mph||34ft (10.4m)|
|Stopping distance, 60mph||141 2/3 ft (43.2m)|
|Sound level (SAE XJ 331a)||78.6db(A)|
|US Retail price||East Coast: $2165; West Coast: $2152|