Custom bikes featuring the traditional parallel twin engine! One cafe racer and two dirt track bikes | Yokohama Hot Rod Custom Show 2025

Triumph, the world-famous British motorcycle manufacturer

Triumph, a prestigious British motorcycle manufacturer, was founded in 1885. Initially, the company mainly produced motorcycles with single-cylinder engines, but in 1938 it made a spectacular debut with the famous “Speed ​​Twin” (pictured above), which featured a 500cc parallel twin engine.

In 1949, the 6T Thunderbird was released, which was based on the Speed ​​Twin engine and had an increased displacement of 650cc. Although the engine displacement was smaller than that of Harley-Davidson or Indian, its light weight and agility attracted attention and it was a huge hit not only in Europe but also in the United States.

In 1959, Triumph released the flagship model “T120 Bonneville,” an evolution of the “T110,” equipped with an ultra-powerful 46ps parallel twin 650cc engine. Until Honda’s CB750Four, released in 1969, became a huge hit, the Bonneville reigned as one of the fastest sports bikes in the world. The traditional parallel twin engine is still used today.

British brand Triumph revives the legendary “Speed ​​Twin”! Could this be the real star of the revival boom? | Motor-Fan Bikes

“TRIUMPH NIGHT,” a launch party to commemorate the release of Triumph’s new model, the Speed ​​Twin, in Japan, was held on February 13th at the club “WONB” in Shibuya, Tokyo. Amidst a new style of presentation that transcends industry boundaries with the concept of “bikes x art x music,” the modern Speed ​​Twin, which has been revived and named after a timeless classic, shone brightly. REPORT: Kenny Sagawa (SAGAWA Kentaro) PHOTO: YAMADA Shunsuke

https://car.motor-fan.jp/article/10008238

Triumph Bonneville Bud Ekins | 900cc water-cooled twin-cylinder, this is a great engine for adults to enjoy. | Motor-Fan Bikes

Let’s start with an old story: until Honda’s CB750Four, released in 1969, became a huge hit, British bikes undoubtedly reigned as the world’s fastest “sports bikes.” The most representative example of this was the Triumph Bonneville. This time, we test rode the T100 Bud Ekins. The standard riding feel of a sports bike brought back memories of nostalgia and freshness, and we were once again impressed by many things. REPORT⚫️Chikata Shigeru PHOTO⚫️Tokunaga Shigeru Interview cooperation●Triumph Motorcycle Japan

https://car.motor-fan.jp/article/10015157

Base vehicle: Triumph TR6 Trophy (1965 model) Exhibitor: HEIWA MOTORCYCLE

The Triumph TR6 Trophy, which was popular in the 1960s, was a new genre of sports model equipped with front and rear block pattern tires and also suited off-road riding. Based on this model, the renowned builder Heiwa Motorcycles has customized it into a retro cafe racer style.

The combination of a slim, long gas tank and a compact single seat creates a slim styling.

The suspension has been completely revamped with upright forks in the front and a monoshock in the rear, significantly increasing the bike’s performance. The front and rear spoke wheels with blacked-out rims are fitted with semi-wide Metzeler road tires.

The cylinder head of this car is the opposite of the standard model, with the intake port facing forward and the exhaust port facing backward. Therefore, the carburetor is positioned forward and protected by an aluminum cover.

The muffler connected to the rear of the cylinder head is a rear-mounted, two-pipe up-type with a silencer at the tail end. The right muffler has its exhaust pipes routed around under the seat in a spiral shape, with a muffler cover used to combat heat.

HEIWA MOTORCYCLE　https://www.heiwa-mc.jp/

Base vehicle: Triumph T110 (1954 model) Exhibitor: Smalls Classic

The flagship model “T120 Bonneville” was released in 1959 and was equipped with an ultra-powerful 46ps parallel twin-cylinder 650cc engine. The model pictured is based on the predecessor “T110” and has been customized to a dirt tracker specification with thick block pattern tires, wide tracker handlebars, a small diameter headlight, a large gas tank, a single seat, and no brakes.

The cylinder, part of the cylinder head, and lower covers are painted black to match the exterior. The intake system is equipped with a Keihin FCR 4-stroke racing carburetor for an aggressive ride.

Base vehicle: Triumph 6T Thunderbird Exhibitor: ENJOY MOTORS

In 1949, Triumph released the 6T Thunderbird, which was based on the Speed ​​Twin engine and had an increased displacement of 650cc. Although the engine displacement was smaller than that of Harley-Davidson or Indian, its light weight and agility attracted attention and it was a huge hit not only in Europe but also in the United States.

Based on the same vehicle, it has been customized to a classic dirt tracker style with block pattern tires, wide tracker handlebars, a small diameter headlight, a peanut-shaped gas tank, a slice seat, etc. The suspension has an upright fork in the front and a rigid rear. The front and rear brakes have been removed.

The wide rear tire, blacked-out right-side dual-down megaphone exhaust, red-based exterior paint and design, large-diameter wheels, and thick, wide rear tire all contribute to a heavy, imposing image.