Honda CBX Parts & Accessories

Honda CBX Parts & Accessories

The Honda CBX is one of the most mechanically distinctive motorcycles ever produced, powered by a 1047cc air-cooled DOHC inline-six engine with 24 valves that produces a sound and character entirely unlike any four-cylinder machine. Introduced in 1978, the CBX defined the high end of the superbike market for its era and today commands strong collector interest alongside a dedicated restoration community. Keeping a CBX in running condition requires careful sourcing of carburetors, ignition components, valve shims, and exhaust parts, many of which are no longer available from Honda directly. The inline-six architecture demands exacting tuning standards, as small calibration differences between the six carburetors or ignition timing variances between cylinders have amplified effects on running quality compared to simpler four-cylinder platforms.

Popular Upgrades

Carb rebuild kits for the six Keihin carburetors are the most critical maintenance parts for any running CBX, addressing float needle valve wear, diaphragm deterioration, and jet corrosion that accumulates over decades of service. MAC Exhaust produces six-into-six replacement exhaust systems for the CBX in period-correct chrome, while six-into-two and six-into-one performance headers are available for café racer and performance builds. Dyna electronic ignition conversion kits for the dual-point CBX ignition improve spark consistency and eliminate the six-point adjustment task required by the original contact breaker system. K&N replacement air filters and Metzeler or Avon tires in the correct dimensions improve performance with straightforward installation.

Performance and Handling

The CBX's wide six-cylinder engine requires attention to frame and suspension setup to keep the wide powerplant from affecting chassis flex. Progressive Suspension rear shocks improve load handling on the relatively soft OEM rear suspension, and fork oil viscosity increase to 10W or 15W reduces front dive under braking on this heavy machine. Steering dampers are a popular addition on CBX builds that have received suspension upgrades, as the combination of increased front end stiffness and the naturally top-heavy engine placement can introduce high-speed wobble on smooth roads. Brake upgrades including stainless braided lines and improved pads from EBC or Galfer improve pedal and lever feel on the dual-front disc setup.

How Many Carburetors Does the Honda CBX Have?

The Honda CBX uses six individual Keihin carburetors, one per cylinder, requiring synchronization across all six units for smooth idle and even power delivery. Carb synchronization is performed using a six-gauge vacuum set connected to each intake manifold port, and the process is considerably more time-consuming than on a four-cylinder machine. The reward for a properly synchronized six-carb CBX is a uniquely smooth power delivery and an exhaust note that distinguishes it from any other motorcycle of the period.

What Is the Honda CBX Worth Today?

Honda CBX values vary widely based on condition, originality, and whether the machine is a standard or Pro-Link variant, with unrestored original-condition examples fetching $8,000 to $15,000 and fully restored concours-level bikes commanding $20,000 or more. Pro-Link rear suspension models from 1981 and 1982 are generally more desirable for riders due to their improved handling, while earlier wire-wheel models are favored by collectors seeking factory-stock appearance. Documented mileage and original matching components are the most significant value factors in the current CBX market.

Why These Parts Fit Right

Parts in this collection are cross-referenced against CBX production year data and Honda frame codes to confirm compatibility with the specific chassis variant. The CBX's unique six-cylinder architecture requires parts matched to its engine specifications, and the fitment data here distinguishes CBX-specific components from those shared with the CB750 and CB900 families. Accurate sourcing prevents costly returns on a platform where incorrect parts can require significant disassembly to discover.

Explore related categories including exhaust systems, suspension components, and air intake upgrades to support your complete Honda CBX restoration or build.