The Coca-Cola Zero Suzuka 8 Hours (鈴鹿8時間耐久ロードレース Suzuka hachi-jikan taikyū rōdo rēsu , Suzuka 8 Hours Endurance Road Race) is a motorcycle endurance race held at the Suzuka Circuit in Japan each year. The race runs for eight hours consecutively and teams are composed of two riders and one alternate.
The race began in 1978 as a race for prototype Tourist Trophy Formula One (TT-F1) motorcycles which meant the big four Japanese companies (Honda, Kawasaki, Suzuki and Yamaha), who had unlimited engineering resources, could use them on the track.
Throughout the years, the race had gone through several rule changes in accordance to the FIM, including the restriction to 750cc for F1 bikes
One major change for the race came in 1993. Due to the high popularity of Superbike racing, which had been a support class in previous 8 Hours races, the race now centered around superbikes. The Formula One class, which at the time was the pinnacle of the race, would be removed altogether. Another category included in the race is the Naked class (for motorcycles without fairings - similar to the streetfighter bikes).
At the event's peak during the 1980s, the race attracted in excess of 130,000 spectators while presently it attracts a crowd around 85,000. The record attendance figure is 160,000 in 1990. The race is part of the FIM Endurance World Championship for motorcycles and with the exception of 2005, due to the high importance the big four Japanese manufacturers place on the race, the governing bodies set a race date that avoids conflict with any of the other major championship races.
Star riders 
A main attraction of the Suzuka 8 Hours race is that it normally features star riders from MotoGP and Superbike racing factions from around the world. It is not uncommon for a rider to have the 8 Hours race written into their contracts when they acquire a factory ride in MotoGP or Superbike. If the rider has notable success in their respective class during the season, they will usually negotiate to have the requirement of racing future 8 Hours races removed from their contract. Most high-level riders don't like racing it because it breaks up their mid-season momentum and because it is physically draining. Michael Doohan is an example of one such rider who raced the 8 Hours early in his career but had his contractual obligations to the race removed following his significant success in 500cc (now MotoGP).
On the other hand, high-level Japanese riders return for the race annually as it is regarded by the Japanese as one of the biggest motorsport events on the calendar. As the Coke Zero Suzuka 8 Hours is part of the FIM World Endurance Racing Championship, its priority on the international calendar, along with the off-weeks in the FIM calendar, makes this race one of the most crucial on the schedule.
Since the 2003 race, race winners have almost been exclusively Japanese, with only an occasional international-level star in the race. This is mostly a result of the date, sometimes conflicting, while other times within just days after the MotoGP class Laguna Seca round. Since 2002, only World Superbike stars have participated in the event, and only two European riders have won.
- Suzuka 8 Hours Official Website
- Suzuka 8 Hours - TBS Channel site
- Suzuka 8 Hours Site
- Moto Race Japan year by year results