Aoshima’s “The Bike” series now includes a custom 1/12 scale plastic model of the original 750cc Honda Dream CB750FOUR!

Aoshima The Bike No. 23 1/12 Honda CB750 Dream CB750 FOUR ’69 Custom… 5,280 yen (tax included) Scheduled for release in December 2025

The Honda Dream CB750FOUR was released in 1969. The early model “K0” (K-zero), which used a sand-cast crankcase (later changed to a metal mold), is known as the “sand cast model” and is the most respected of the CB750FOUR series.

This new 1970s style plastic model is a 1/12 scale reproduction of the K0 sandcast model, customized with original hand-bent short tubing without stays, raised handlebars, and a genuine seat without padding.

This custom model uses new molds to add custom parts, and the engine employs a layered construction to recreate the thinness of the fins. It also makes extensive use of plated parts, which are essential for classic cars, and uses metal springs for the rear suspension to achieve a more realistic look.

Product specifications

Brand: AOSHIMA

Specifications: Plastic model

Series: The Bike No. 23

Release date: Scheduled for December 2025

Scale: 1/12

Size: Total length approx. 177mm

Body: PS

Tires: Rubber

Price: 5,280 yen (including 10% tax)

Publisher: Aoshima Bunka Kyozai Co., Ltd.

<<Note>>

*The photo is a prototype. Specifications may differ from the actual product.

First released in 1969 (Showa 44). The early model “with a sand-cast crankcase” is a real treasure!

The Honda Dream CB750FOUR, born in 1969 (Showa 44), was the world’s first mass-produced motorcycle capable of reaching speeds of over 200 km/h. The engine was an air-cooled, four-stroke, inline four-cylinder, SOHC, two-valve engine with a displacement of 736 cc. The bore diameter and stroke length were set at a long stroke of Φ61.0 mm x 63.0 mm. It produced a maximum output of 67 horsepower.

The CB750FOUR is characterized by the model name followed by a nickname of “K + number” for each model year. The photo shows the first generation 1969 model, known as “K0 (K Zero).”

The first generation K0 was broadly divided into two types. The crankcase of the early model was cast using a sand mold. As production volume increased, the next model was changed to a metal mold, resulting in a smoother cast surface. The K0 with a sand-cast crankcase is highly valued among enthusiasts as “the most valuable of the CB750FOUR-K models.”

The CB750FOUR-K has been highly praised not only in Japan but also in overseas export destinations. Along with the Kawasaki Z2, it sparked a “750cc boom” and became a social phenomenon, leading to the creation of a voluntary restriction by Japanese manufacturers that limits the engine displacement of domestically-spec models to 750cc.

Honda Dream CB750FOUR-K (K0) Main Specifications

Length x Width x Height: 2160mm x 885mm x 1120mm 
Wheelbase: 1490mm 
Seat Height: 1455mm 
Weight: 235kg 
Displacement: 736cc 
Engine Type: Air-cooled 4-stroke OHC 2-valve in-line 4-cylinder 
Bore x Stroke: 61.0mm x 63.0mm 
Compression Ratio: 9.0:1 
Maximum Power: 67ps/8000rpm 
Maximum Torque: 6.1kg-m/7000rpm 
Starting Method: Electric/Kick Start 
Transmission: 5-speed (Return Type) 
Suspension: 
　Front Telescopic, 
　Rear Swingarm 
Brakes: 
　Front Hydraulic Single Disc, 
　Rear Drum 
Tires (Front): 3.25H19-4PR 
Tires (Rear): 4.00H18-4PR 
Seating Capacity: 2 
Fuel Tank Capacity: 19L 
60km/h Constrained Fuel Economy: 32km/L

The original 750cc Honda Dream CB750FOUR, the early model “K0” | 1/12 scale reproduction [AOSHIMA]

AOSHIMA (Aoshima Bunka Kyozai Co., Ltd.), well-known for its plastic models, miniature cars, radio-controlled cars, capsule toys, and more, has released a 1/12 scale plastic model that faithfully and precisely reproduces the early “sand cast crankcase model” of the “K0,” the most respected of the Honda Dream CB750FOURs. The engine uses a laminated construction to reproduce the thinness of the fins. The rear suspension uses metal springs for realism. The body emblem is reproduced with plated parts, and the quality of each part has been improved. REPORT ● KITA Hideaki Aoshima Bunka Kyozai Co., Ltd. https://www.aoshima-bk.co.jp/

https://motor-fan.jp/bikes/article/99978

Build the legendary 750cc “Honda CB750FOUR” “K0” in 1/4 scale as part of a series! Includes a comprehensive magazine | DeAgostini Japan

DeAgostini Japan Co., Ltd. will begin selling the weekly “Honda CB750FOUR Reissue Edition” at bookstores nationwide (excluding some regions) and on the official DeAgostini website from Tuesday, January 30, 2024. The Honda Dream CB750FOUR, officially known as the Honda Dream, was launched in 1969 (Showa 44) to the global motorcycle market, incorporating the finest technology of the time. This product is part of a series of 1/4-scale models of the legendary bike that captivated riders worldwide and remains beloved today as the epitome of the “750” motorcycle. It faithfully recreates iconic details such as the four-cylinder engine and the sand-cast crankcase unique to the early “K0” model. It also includes various gimmicks, such as engine sounds and illuminated lights, recreating every detail of the actual bike. REPORT: Kita Hideaki Official Website: https://deagostini.jp/r/cb2/

https://motor-fan.jp/bikes/article/96688

Dissecting the engine of the legendary four-cylinder Honda CB750FOUR! Why did they choose a long-stroke SOHC 2-valve engine over the short-stroke DOHC 4-valve engine inherited from RC racers?

The Honda Dream CB750FOUR was unveiled at the Tokyo Motor Show in 1968 (Showa 43) and released the following year in 1969 (Showa 44). The huge success of this model, which introduced the first mass-produced in-line 4-cylinder engine, established Honda as the world’s number one manufacturer in both name and reality. Here we take a look at the CB750FOUR, which was exhibited at the Bike King booth at the Tokyo Motorcycle Show 2024, with the engine removed from the frame and the crankcase, cylinder and cylinder head separated. PHOTO/REPORT●KITA Hideaki Bike King https://www.8190.jp/ Bike King Zeppankan https://www.8190.jp/wish/ds/zeppan/

https://motor-fan.jp/bikes/article/107654