It is often easier to find an inline four-cylinder motorcycle among premium bikes. In the affordable midsize segment, though, their presence is slowly fading. Options are few and disappearing faster than your hopes of owning one, as most manufacturers are shifting to less complex parallel-twin motors.
Sure, the transition might be good news from a practical point of view, but for many who admire the inline-4 magic, the change feels bittersweet. All hope isn’t lost, however. A few unicorns have managed to survive and are still revving strong in 2026, including a retro-style naked bike from a brand known worldwide for reliability.
Why Affordable Inline-Four Bikes Are Rare To Find
Rising to its epitome in the 80s and 90s, the inline four engines were the hot favorites for their high-revving adrenaline rush and turbine-like smoothness. Starting with the original superbike, the Honda CB750, the era defined by the Universal Japanese Motorcycle (UJM) brought the high-pitched howl and redlining performance to the masses. However, it has always been an expensive proposition for manufacturers to build inline fours. They are inherently more complex and require more moving parts and more engineering compared to singles or parallel-twins.
That is why, today, most brands reserve them for higher-end models, just like the world’s most powerful sports bike. While the mid-displacement segment has suffered from a noticeable drought of inline-fours. Adding further to the challenge, stricter emission and noise regulations have made four-cylinder engines a less preferred choice. Despite all these obstacles, a few manufacturers are fighting to keep the small-capacity inline four alive for the purists, with examples like the Kawasaki Ninja ZX-4R and the upcoming Honda CBR500R Four.
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The Honda CB650R E-Clutch Is The Cheapest Inline-Four Motorcycle In 2026
Since its introduction, the Kawasaki ZX-4R has held the crown as the cheapest Inline-four available on the market for a while now. However, thanks to Honda’s aggressive pricing and Kawasaki’s price hike, that crown now lies on the CB650R E-Clutch’s head. Even its supersport sibling, the CBR650R E-Clutch, comes in $100 cheaper than the Kawasaki. Sure, technically, you have a highly underrated Suzuki GSX-S750 naked bike at a slightly lower price of about $150 compared to Honda. But that model dates back to 2022 and has not been updated for a long time. In contrast, the CB650R offers much more as a package.
New Affordable Entry Point To Inline-Four Ownership
After a $700 price reduction from the previous year, the CB650R E-Clutch now starts at $8,699. Competing in this space at a similar price point are the Kawasaki Z650 starting at $7,249, the Yamaha MT-07 retailing for $8,599, and the Suzuki GSX-8S costing $9,249. Ironically, all of these rivals use parallel twins, which makes Honda a league of its own, especially once you cross 8,000 rpm.
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High-Revving Mid-Size Inline-Four With Modern Efficiency
Now, to the heart of the matter. The liquid-cooled 649 cc inline-four engine powers the CB650R. You have an oversquare configuration, with a 67 mm bore, and a 46 mm stroke specifically optimized for high-RPM performance. The DOHC valve operation with four valves per cylinder ensures the engine breathes freely, while the 11.6:1 compression ratio helps extract maximum output. In addition, Honda’s PGM-FI fuel injection system with 32 mm throttle bodies delivers smooth throttle response.
Performance That Balances Power and Practicality
When you unleash this engine, it delivers a linear surge of 94 horsepower that peaks at 12,000 rpm. At the same time, it churns out 47 pound-feet of torque at a relatively low 9,500 rpm. Meanwhile, power flows through a traditional chain final drive and a six-speed manual transmission with a slip and assist clutch. On top of that, you also get Honda’s new E-Clutch system for shifting gears without the clutch. Importantly, you do have the option to turn it off, in case you want to go fully manual.
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Frame, Suspension, and Brakes Built for Versatility
As a naked version of its supersport sibling, the CB650R gets a lower curb weight of 456 pounds. Again, with an identical structure, the versatility is built around the steel diamond frame, which uses the engine as a stressed member. Also, paired with a lightweight subframe, you get rigidity while still being tuned for comfort. While its 25.5-degree rake and 4 inches of trail ensure flickability, the 57-inch wheelbase should provide rock-solid stability.
The underpinnings are equally robust and practical, featuring 41 mm inverted Showa Separate Function Fork Big Piston (SFF-BP) forks with 4.7 inches of travel at the front. The rear is supported by a Showa monoshock with adjustable preload and 5.1 inches of travel. Meanwhile, dual 310 mm front discs with radial-mount Nissin calipers and a 240 mm rear disc provide strong stopping power. Dual-channel ABS comes standard equipment. Rounding off, the CB650R rolls on lightweight 17-inch Y-spoke cast aluminum wheels.
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Practical Tech Wrapped in Classic Neo Café Aesthetics
Even after the recent price reduction, the CB650R comes with all the practical features. For starters, you get a 5-inch TFT instrument cluster that integrates RoadSync smartphone connectivity and offers three display modes. As mentioned earlier, the electronic clutch (E-clutch) system comes standard, which you can enable or disable. It also has Hard, Medium, and Soft modes. On the safety front, you have dual-channel ABS, Honda Selectable Traction Control, and emergency brake lights.
Slotting right in between the CB lineup, the CB650R also embraces Honda’s neo-sports café design language, just like its siblings. Its naked streetfighter stance is complemented by a round retro-style LED headlight, while maintaining a minimalist and muscular look. When you put it all together, the CB650R E-Clutch might be the most affordable inline-four available today, but it does not sacrifice performance, style, or practicality.
Sources: Powersports Honda