Kaido racer and shakotan: Japan's other street styles

A kaido racer is an old Japanese car built to look like a 1970s or 1980s race car. Shakotan just means lowered. Most kaido racers are shakotan, but plenty of shakotan cars are not kaido racers.

Both styles come from the same Japanese street scene as bosozoku. Here's what separates them, which cars and wheels define them, and how people build one now.

What kaido racer means

Kaido is an older Japanese word for road, so a kaido racer is a "highway racer" (Motor1). The name came from a reader photo column in Holiday Auto magazine in 1975 (Motor1, kaidoracer.com). Readers sent in shots of their modified street cars, and the label stuck.

The look copies Fuji Speedway's race cars. Fuji launched the Fuji Grand Champion series, shortened to "Grachan," on April 25, 1971 (kaidoracer.com). Group 5 Super Silhouette cars joined it as a support class in 1979.

Motor1 puts it bluntly: "Performance is not the point." The parts exist to be seen and heard.

There are regional and period flavors. Grachan builds lean hardest on race liveries and box flares. Fukuoka-style cars stretch the nose; one Finnish Mazda 929 build added 400 mm (15.75 inches) to its hood and fenders (Speedhunters).

What shakotan means

Shakotan is written 車高短, literally "car height short." It means a lowered car (Japanese Wikipedia).

Kuruma-news describes two kinds. One is truly lowered with coilovers or cut springs. The other keeps stock ride height but uses low skirts and lips to look slammed.

The classic shakotan car sits low on its springs, wears small wide wheels, and makes a loud naturally aspirated noise. Speedhunters' feature on a Liberty Walk C130 Laurel sums it up. The car runs Bilstein short-stroke dampers, lowered front springs and cut rear springs "to help the car sit, as a shakotan ride should."

The cars that define both styles

Rear-drive Japanese sedans and coupes from the 1970s and 1980s are the base. Kaidoracer.com lists the popular platforms.

Top Gear's tour of the scene found Hakosuka (C10) Skylines, an RA25 Celica 2000GT and a Datsun B110 badged "Shakotan." At a Nagoya show, Speedhunters found GX61 Mark IIs, a first-generation Chaser and a Crown Royal Saloon.

The wheels

Small, wide and deep-dish is the rule. Fourteen inches is a common size.

RS Watanabe started as a race-car builder in 1967 and launched its Eight Spoke wheel in 1968 (Auto Messe Web). SSR's MK1 is nicknamed "ichi-en-dama," the one-yen coin (Speedhunters). Kaidoracer.com adds the SSR MK2 and MK3 and the Techno Phantom.

Hayashi Racing wheels are the other icon. Liberty Walk founder Wataru Kato's Laurel runs Hayashi "Yayoi" wheels, made only in 14-inch negative offset. The fronts are 9J with 195/45R14 tires and the rears 10J with 225/40R14 (Speedhunters).

Negative offset pushes the wheel out past the body, so the car needs overfenders to cover it. Our wheel offset guide shows how to work out how far a wheel will stick out.

How they connect to bosozoku and VIP

The styles share parts and people. Bosozoku gangs took their car look, called zokusha, from the same race cars. By the mid-1980s, a car with a deppa and a takeyari exhaust was called "Chibaragi," after Chiba and Ibaraki prefectures (kaidoracer.com). Our bosozoku explainer covers that side.

Racing pushed the street scene away from the track. In 1982, Nissan rolled out R30 Skyline, S110 Silvia and 910 Bluebird silhouette racers. Modified street cars packed Fuji's car park, and the track banned them (kaidoracer.com).

The luxury branch came next. Haiso, short for "high society," appeared in 1986. A haiso boom followed in 1988 as old Mark II, Cresta and Chaser sedans got cheap (kaidoracer.com). That big-sedan, low-stance idea grew into the scene in our VIP style explainer.

Where to see them now

Japan still has the biggest scene, but it's far smaller than its peak (Motor1). Shows are the easiest way in. Speedhunters covered a full field of kaido racers at the Nagoya Exciting Car Showdown. Kuruma-news found slammed shakotan show cars at Tokyo Auto Salon 2019.

Some shops still build them. Top Gear visited Wingworks in Oyama, about 90 minutes north of Tokyo, where Hakosuka Skylines were lined up for work.

North America has its own following. Motor1 says kaido racer clubs from British Columbia to Southern California run summer cruises and New Year's runs. Brian Baker's kaidoracer.com keeps a glossary and event recaps, and it's a good place to learn the terms before you buy parts.

Japan's rules on going low

Japan sets a 9 cm minimum ground clearance for inspection (Web CarTop). It applies to fixed parts between the wheels, such as the exhaust, suspension members, oil pan and differential.

Some parts are exempt. Parts that move with the wheels don't count, and neither do resin air dams, skirts and spoilers. That's how a deppa can sit lower than 9 cm and still pass.

Kuruma-news adds a second limit. A lowered car's height should stay within 40 mm of the figure on its inspection certificate. Aero parts with built-in lights count as body structure and must meet the 9 cm rule.

How to build one today

1. Pick a rear-drive base from the table. Every car listed is old enough for US import under the 25-year rule, which runs from the date of manufacture (NHTSA).
2. Lower it properly. Coilovers or short-stroke dampers, like the Bilsteins on Kato's Laurel, let you set the drop instead of guessing with cut springs. Our coilovers vs lowering springs vs air suspension guide compares the options.
3. Choose 14-inch, wide, low-offset wheels, then size overfenders to cover them.
4. Add the body parts: deppa, wing and flares. Expect custom fabrication; one builder told Speedhunters there are no off-the-shelf kits for most cars.
5. Sort the mechanicals. Liberty Walk swapped Kato's tired L28 for an RB25DE and an R32 Skyline gearbox for reliability (Speedhunters).

Watch the details that sell the look. Racing mirrors, zekken race numbers and period sponsor decals are common (kaidoracer.com).

Common questions

Is shakotan the same as stance?

Close. Shakotan is the Japanese term for a lowered car, usually an old one on small, wide wheels. Modern stance adds extreme camber and tight fitment, often on newer cars.

What does grachan mean?

It's short for the Fuji Grand Champion series, which ran from 1971 to 1989. Grachan-style cars copy its race liveries, wings and box flares.

Are kaido racers legal in Japan?

Some are, some aren't. The 9 cm ground clearance rule still applies, and Motor1 notes many kaido racers ran illegally modified exhausts.

What wheels suit a kaido racer?

Fourteen-inch deep-dish designs: RS Watanabe Eight Spoke, SSR MK1 to MK3, Hayashi and Techno Phantom.

Sources

• Motor1: Bosozoku, kaido racer and Japan's car subcultures
• kaidoracer.com: Grachan, kaido racer history
• Speedhunters: Shakotan Life, the Liberty Walk C130 Laurel
• Speedhunters: Nagoya Exciting Car Showdown, kaido racers
• Speedhunters: Mazda 929 kaido racer
• Top Gear: Top Gear's guide to the crazy world of Bosozoku
• Yokogao Magazine: Bosozoku cars, Japanese mod culture on steroids
• Japanese Wikipedia: 暴走族
• Kuruma-news: The two types of shakotan
• Web CarTop: Shakotan and the 9 cm ground clearance rule
• Auto Messe Web: RS Watanabe history
• NHTSA: Importation and certification FAQs

Featured image: Nissan 1973 Skyline 2000 GT-R by Basic Transporter, CC BY 2.0. Source