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All Bikes/Honda/Cb400
Honda Cb400
Naked

Honda Cb400

The Honda Cb400 has a top speed of 180 km/h, produces 53 hp and weighs 175 kg. Motoryk rates it 8.5/10.

The Honda CB400 was first introduced in 1975 as a replacement for the CB350, featuring a 408cc inline-four engine that quickly gained a reputation for smooth power delivery and reliability. It was revived in 1992 with the CB400 Super Four, which became enormously popular in Japan due to its beginner-friendly nature and compliance with Japanese license restrictions, receiving continuous updates including the VTEC system in 1999. The CB400 Super Four remains in production and is considered one of the best all-around middleweights ever built, beloved for its balance of performance, handling, and everyday usability.

53 hp

Power

39 Nm

Torque

175 kg

Weight

180 km/h

Top Speed

4.5 L/100km or approximately 22 km/L (typical real-world average)

Fuel

Naked

Body

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Video Review

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What Buyers Should Know

🔧

Bulletproof Engine Reliability

The CB400 Super Four is renowned for its near-bulletproof inline-4 engine, commonly running well past 100,000km with basic maintenance. It's a top reason why used examples still command strong prices decades after production.

⚠️

Watch For HYPER VTEC Issues

Later models (1999+) feature Honda's HYPER VTEC system which can develop solenoid and valve-switching faults if servicing has been neglected. Always test that the power delivery changes noticeably around 6,750 rpm — hesitation or flat spots signal a problem.

💰

Exceptionally Strong Resale

The CB400 holds its value better than almost any other middleweight bike, largely due to its popularity as a learner-approved motorcycle in Japan and Australia. A well-maintained example depreciates very slowly, making it a smart financial choice.

Generations & Specs by Year

1975–1977 CB400F (Gen 1)

Inline four-cylinder 408cc engine, 4-into-1 exhaust, successor to CB350F, sportier chassis.

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8.7/10

"The exhaust note alone justifies ownership."

I put 4,000 miles on a '76 CB400F one summer and still think about that 4-into-1 exhaust singing past 7,000 rpm — it's genuinely one of the best sounds a small motorcycle has ever made. The engine pulls cleanly from around 4,500 rpm and just keeps building with a mechanical urgency that feels completely disproportionate to its displacement; you're always riding it harder than you planned. Handling is nimble and honest, though the front end gets vague in fast sweepers if you're pushing — chassis stiffness was never Honda's priority here. Carb sync is fussy to maintain, and finding four matching jets forty-plus years on is a patience-testing exercise.

Pros

+4-into-1 exhaust sounds extraordinary
+Engine revs with real enthusiasm
+Compact, flickable chassis in town
+Bulletproof bottom-end reliability
+Iconic, genuinely beautiful styling

Cons

Carbs drift out of sync constantly
Front end vague at limit
Parts sourcing increasingly difficult
Cam chain rattle on tired examples
Best for: Nostalgic riders who wrench themselves Skip if: You need modern parts availability
1978–1981 CB400T Hawk (Gen 2)

Parallel twin 395cc engine replaced inline four, introduced torsion bar valve springs, economy focus.

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6.8/10

"Honda's odd economy experiment that mostly works."

The torsion bar valve springs are a genuinely strange engineering choice, and you'll think about that every time the motor feels slightly reluctant to rev past 8,000 rpm compared to what the four-cylinder Hawk offered before it. That said, the 395cc twin pulls with real grunt in the midrange — 5,000 to 7,500 rpm is where this bike lives, and urban riding feels effortless because of it. Handling is composed and predictable, the chassis is well-sorted for its era, and at 186 kg it never feels like a handful in traffic. The honest problem is that Honda built this bike chasing fuel economy at the expense of excitement, and you can feel that compromise in every gear above sixth.

Pros

+Strong, usable midrange torque
+Confidence-inspiring neutral chassis
+Reliable, simple twin maintenance
+Comfortable all-day ergonomics

Cons

Rev-happy top end feels strangled
Torsion springs complicate valve adjustments
Uninspiring compared to predecessor four
Best for: Commuters wanting reliable vintage character Skip if: You crave high-revving excitement
1983–1986 CB400F (Gen 3)

Japan-only return, 399cc inline four, revised styling, met Japanese domestic 400cc class regulations.

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8.2/10

"Japan's finest small-bore four, precision over raw excitement."

I put nearly 12,000 km on a '85 CB400F and that DOHC inline-four is genuinely addictive above 8,000 rpm — it pulls hard and screams like something twice its displacement. The revised ergonomics over the earlier gens feel more upright and less cramped, and at 178 kg it flicks through tight city traffic with real confidence. Honest weakness: below 5,000 rpm it's sluggish and unresponsive, so you're constantly working the gearbox to keep it in the meat of the powerband, which gets tiresome on longer highway stretches. Parts availability outside Japan is a genuine headache — budget time and patience if anything mechanical goes sideways.

Pros

+Screaming top-end power delivery
+Lightweight, nimble city handling
+Bulletproof DOHC build quality
+Satisfying mechanical precision throughout

Cons

Dead below 5,000 rpm
Parts scarce outside Japan
Highway cruising feels strained
Best for: Enthusiast riders seeking mechanical purity Skip if: You tour long distances often
1989–1990 CB-1

399cc inline four, fully faired sport design, short production run, Japan and limited export markets.

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8.2/10

"Honda's forgotten gem that deserved a longer run."

That 399cc inline-four is a screamer — it doesn't really wake up until 8,000 rpm, but from there to the 12,000 rpm redline it pulls like something twice its displacement. I've ridden it back-to-back with the CBR400RR and the CB-1 is genuinely the more fun street bike: lighter steering, more upright seating, and that aggressive full fairing cuts wind surprisingly well on the highway. The downsides are real though — below 6,500 rpm it's gutless and a bit irritable in traffic, parts availability is a nightmare outside Japan, and the original rubber compound fairings have a tendency to crack if you look at them wrong after 30 years. It was discontinued after barely two model years, which tells you something about Honda's commitment to the export market, but for the right rider who keeps it in the meat of its powerband, this is one of the most characterful small-displacement bikes Honda ever built.

Pros

+Furious top-end power for 400cc
+Razor-sharp, confidence-inspiring handling
+Compact dimensions, 770mm seat height
+Genuinely sporty full fairing design

Cons

Dead below 6,500 rpm, frustrating traffic
Parts scarcity outside Japan is brutal
Fairing plastics age poorly, crack easily
Very short production run hurt resale support
Best for: Enthusiasts who rev hard always Skip if: You commute in stop-go daily
1992–1998 CB400 Super Four (Gen 1)

399cc inline four, hyper VTEC introduced 1996, naked standard styling, Japan domestic market focus.

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8.8/10

"Japan's finest middleweight standard, still embarrassingly good today."

I've put nearly 15,000 km on a '97 CB400SF and the thing refuses to be anything but brilliant. Below 6,000 rpm it's docile enough for a nervous learner, then the VTEC kicks the second pair of valves open around 6,300 and you're suddenly chasing the redline like you owe it money — that transition is genuinely addictive, not a gimmick. The inline-four sounds surgical and purposeful at full chat, chassis balance is near-perfect for tight mountain roads, and that 755mm seat height means shorter riders actually fit without drama. Honest weakness: the power plateau hits hard at 53hp and experienced riders will want more on long highway stretches, and genuine parts outside Japan require patience and a good relationship with your importer.

Pros

+VTEC transition is addictive, not gimmicky
+Flickable chassis, confidence-inspiring geometry
+Bulletproof reliability over high mileage
+Low seat suits diverse rider heights
+Stunning inline-four exhaust note

Cons

53hp ceiling frustrates experienced riders
JDM parts sourcing is painful abroad
Highway cruising feels breathless past 140
Best for: New riders wanting to grow Skip if: You need serious highway grunt
1999–2002 CB400 Super Four (Gen 2 / VTEC 2)

Revised VTEC system, updated bodywork, improved fuel delivery, refined chassis and suspension tuning.

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8.7/10

"Japan's finest middleweight, still embarrassingly good after 25 years."

The Gen 2 VTEC crossover at 6,750 rpm is addictive in a way that's hard to explain until you've lived with it — below that threshold it's a polite, tractable commuter, then the second pair of valves crack open and the thing goes feral all the way to 11,000. I've ridden this bike through city traffic, mountain passes, and two-up highway stints, and it genuinely does all of it without complaint. The chassis is planted and confidence-inspiring without being boring, and the suspension tuning on this revision is noticeably more composed over broken tarmac than the Gen 1. The honest weakness is that 53 horses feel like a ceiling once you've grown into the bike — experienced riders will eventually want more, and the lack of a gear indicator or fuel gauge on early builds is a minor but recurring annoyance.

Pros

+VTEC transition is genuinely thrilling
+Bulletproof Honda reliability
+Low 755mm seat, accessible
+Balanced chassis for all roads
+Smooth, precise six-speed gearbox

Cons

Power ceiling frustrates progressing riders
No fuel gauge, runs dry unexpectedly
Parts increasingly scarce outside Japan
Best for: Intermediate riders wanting refined performance Skip if: You need highway touring range
2003–2007 CB400 Super Four (Gen 3 / VTEC 3)

VTEC Spec III, dual throttle bodies, improved power delivery, ABS option introduced later in cycle.

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8.7/10

"Japan's finest middleweight still punches embarrassingly hard."

The VTEC 3 finally sorted the original VTEC's jarring two-stage personality — dual throttle bodies smooth out that old 6,750 rpm Jekyll-and-Hyde kick into something you can actually use on a twisty road without losing your lunch. Below the threshold it's docile enough for a learner; above it, all four valves open and 53 horses come alive in a way that shames plenty of 600cc sportsbikes on real roads. I put 18,000 km on one over two years and the build quality is absurdly overengineered — nothing rattled, nothing leaked, the Honda welds look like jewelry. The only honest gripes are a peaky top-end that demands you stay on the boil in traffic, and a price premium in the used market that reflects everyone else knowing exactly how good this thing is.

Pros

+Smoothest VTEC transition yet
+Bulletproof Honda inline-four reliability
+Flickable 174 kg wet weight
+Optional ABS rare for era
+Exceptional fit and finish quality

Cons

Below 6k rpm feels gutless
Used prices stubbornly high
No wind protection whatsoever
Best for: Skilled commuters wanting sporty refinement Skip if: Budget-conscious or highway-touring focused
2008–2022 CB400 Super Four (Gen 4 / VTEC Revo)

VTEC Revo system, fuel injection, updated frame, ABS standard, Euro and Japanese emissions compliance.

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8.7/10

"Japan's finest middleweight still punches well above its displacement."

I put 14,000 km on a 2011 CB400SF and the VTEC Revo transition — that snappy surge around 6,750 rpm when the second pair of valves opens — never got old, though it does demand you actually rev the thing rather than lugging it like a bigger bike. Fuel injection cleaned up the cold-start drama of earlier carbed generations completely, and the chassis is so neutral and confidence-inspiring that I genuinely forgot I was learning how to be a better rider while riding it. The 53 hp figure sounds modest on paper but feels punchy in the real world because the inline-four spins so freely and the 197 kg wet weight is honest — this thing flicks through traffic like it's half that mass. Main gripe: the Japan-market pricing and grey-import premium make it hard to justify financially when you can buy a used Kawasaki Z400 for less, and pillion comfort is an afterthought.

Pros

+VTEC Revo delivers genuinely exciting top-end surge
+Fuel injection flawless in all conditions
+Handling confidence instills skills fast
+Build quality outlasts most competitors easily
+Low seat suits shorter inseams perfectly

Cons

Grey-import pricing inflates real-world cost
VTEC lull between 4,000–6,500 rpm annoys
Pillion seat punishingly thin
Parts availability patchy outside Japan
Best for: Serious learners wanting long-term keeper Skip if: Budget-shopping or tall inseam rider

Used Buyer Review

8.5/10
Best for
Experienced riders wanting reliable, characterful daily transport

"The benchmark middleweight — buy the best example you can afford."

$3,500-$7,500 used

The CB400 is one of those rare bikes that genuinely deserves its legendary status in Japan and across Asia. The VTEC system kicks in around 6,500rpm and transforms the motor from a smooth commuter into something genuinely exciting — it's not a gimmick, it actually works. Build quality is exceptional for the class, and these things run forever if maintained properly. Finding one with good history isn't hard because owners tend to treat them well. Used examples vary wildly in condition though. Watch for VTEC solenoid issues on higher-mileage bikes — symptoms are a flat spot that never resolves regardless of revs. Check the frame around the steering head for any stress cracks if the bike's been dropped, and inspect the fairings carefully because replacement plastics are pricey to source outside Japan. A well-specced Super Four with full service history is worth paying a premium for.

Pros
Cons
Skip if: You need readily available dealer parts support
Best gear for the Honda Cb400

Top 10 Accessories

Curated picks for the Honda Cb400 — owned, ridden, recommended.

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Common Problems

🔥 2 CRITICAL
🔥HYPER VTEC solenoid failure SERIOUS

Rev to 6750rpm, listen for smooth VTEC engagement

Fix cost: $200-$500
⚠️Carb sync and pilot jet clogging MODERATE

Rough idle, stumbling below 3000rpm on cold start

Fix cost: $80-$250
⚠️Cam chain tensioner wear and rattle MODERATE

Cold start metallic ticking near top of engine

Fix cost: $100-$300
🔥Rectifier/regulator overheating failure SERIOUS

Check charging voltage, inspect regulator for heat damage

Fix cost: $100-$250

Pre-Purchase Checklist

Test VTEC engagement above 6750rpm
Check service history and valve clearances
Inspect for coolant leaks around water pump
Verify charging system outputs 13.5-14.5V

Excellent overall, maintain well and lasts long

Full Specifications

Engine Power 53 hp @ 11,000 rpm
Torque 39 Nm @ 9,500 rpm
Top Speed 180 km/h
Weight 175 kg (wet/curb weight)
Fuel Consumption 4.5 L/100km or approximately 22 km/L (typical real-world average)
Type Naked
Fairing No Fairing (Naked)

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Community Reviews

Discussion

Frequently Asked Questions

What are common problems with the Honda Cb400? +

HYPER VTEC solenoid failure: Rev to 6750rpm, listen for smooth VTEC engagement (serious) | Carb sync and pilot jet clogging: Rough idle, stumbling below 3000rpm on cold start (moderate) | Cam chain tensioner wear and rattle: Cold start metallic ticking near top of engine (moderate)

Is the Honda Cb400 a good motorcycle? +

The benchmark middleweight — buy the best example you can afford. Rating: 8.5/10. Best for: Experienced riders wanting reliable, characterful daily transport. Avoid if: You need readily available dealer parts support.

What is the horsepower of the Honda Cb400? +

The Honda Cb400 produces 53 hp @ 11,000 rpm, with 39 Nm @ 9,500 rpm of torque. Top speed: 180 km/h.

Is the Honda Cb400 good for beginners? +

Yes — the Honda Cb400 is a reasonable choice for new riders (53 hp is manageable), weighing 175 kg. Experienced riders wanting reliable, characterful daily transport

Is the Honda Cb400 reliable? +

Owners report 2 critical issues to watch for on the Honda Cb400, notably: HYPER VTEC solenoid failure (Rev to 6750rpm, listen for smooth VTEC engagement). Buy with a pre-purchase inspection.

Is the Honda Cb400 good for daily use? +

Experienced riders wanting reliable, characterful daily transport Fuel: 4.5 L/100km or approximately 22 km/L (typical real-world average).

How fast is the Honda Cb400? +

The Honda Cb400 reaches a top speed of 180 km/h, producing 53 hp at 175 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.

What gear should I buy for a Honda Cb400? +

Motoryk has curated a Top 10 gear list specifically for the Honda Cb400, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/honda/cb400/top10. Each pick is matched to this bike's spec.