The introduction of Honda’s CB750 in 1969 did more than simply redefine what a range-topping bike could be. It heralded an onslaught of sophisticated, reliable machine across their entire range: while sporty midsized offerings from the other Japanese manufacturers were often quick and nimble, but powered by peaky, noisy, smoky two-strokes, Honda used sophisticated overhead-cam twins and fours. In fact, their direct competitor for the famous Yamaha RD350 was this bike, the four cylinder CB400F.
Powered by a bored-out version of the 350, the 400F engine actually displaced 408cc, and the bike featured a relatively novel six-speed gearbox, something nearly unheard of outside racing circles in an era when most bikes still used only four.
The Honda couldn’t hold a candle to the RD in terms of quick and dirty speed, but it beat the little smoker hands-down when it came to sophistication. Unfortunately, the sportbike market wasn’t especially interested in refinement, so the Honda didn’t sell all that well when new, with buyers in the middleweight sports market opting for the light weight and personality of the Yamaha.
But while the Honda was much heavier, handling was still excellent, and riders of the period found plenty of success on track, with race-prepped bikes capable of true giant-slaying ability and top speeds of over 130mph.
From the original eBay listing: 1975 Honda CB400F for Sale
This 1975 Honda 400 Four Super Sport is equipped with a side stand and a center stand which is handy for maintenance. It also has an electric start & a kick start. This is handy if the battery is low, as the starter robs the voltage to the ignition coils. After starting the bike from cold, it needs to warm up on part choke for a few minutes before setting off, or you could find yourself fumbling with the choke whilst riding.
This little guy pulls well from the start (even with its peak power of 37 bhp at 8,500rpm and redline at 10,000 rpm), and with 6 gears to choose from you’ll find your left foot is kept busy if you want to make the most of it. It accelerates well from 0-70 mph, which is the range where most riders will find themselves on this urban super sport. The seating position is slightly bent forward, giving a dominant street fighter feel. The bike handles very well at all speeds providing good cornering and a comfortable ride, and would make a great city commuter anywhere in the world.
This well preserved 1975 Honda CB 400 F only has 12,655 miles on the odometer. The VIN number is CB400F-1027692, Date of Manufacture is 03/75, and Engine ID# is CB400FE-1028229. It is in very nice condition. The bike starts, runs, and shifts very well. The bike is all original with the following exceptions – which were made to get it roadworthy for the new owner:
New “Varnish Blue” paint on gas tank and side covers (professionally done and very nice)
New chrome exhaust muffler
New dash lights/ console (replaced with new)
New seat cover (replaced with new)
New cables for throttle, brake and clutch
New master cylinder
New switch gear for starter and kill switch at throttle side of handlebar
We have gone through this bike and cleaned it from top to bottom and performed the following services:
Installed new brake pads and rebuilt front caliper (with new brake fluid)
Repainted front brake calipers
Polished all chrome parts and accessories
Cleaned and tuned all 4 carburetors
Replaced all fluids
All lights and electrics work perfectly, and the horn work so it will easily pass Texas vehicle inspection. There is not a bit of grease or dirt on this bike anywhere as it was given a very thorough detailing, even in the places you can’t see.
This one has been repainted and looks to be in excellent physical and mechanical condition. The seller also includes a nice video of the bike being started and running.
These are great little bikes, and can still be found for very reasonable prices. They make excellent “starter classics” since they’re physically on the small side, are reliable, and have decent parts availability.