"B.B.BASE" Timetable, Fares, and How to Buy Tickets

This article provides a comprehensive overview of JR East's "B.B.BASE" limited express train, which connects Ryogoku Station to various areas of the Boso Peninsula. It includes timetables, fares for representative routes, stations served, seating information, how to buy tickets, whether tickets need to be issued, and IC card support status. It is used as a train for cycling and accessing the Boso coastline, and this article organizes key points to check before your trip.

The information in this article is current as of July 2026. Operating days, timetables, fares, and sales conditions may change, so please check the latest information on Ekitan or the railway company's official website before using the service.

"B.B.BASE" is a JR East train specifically designed for cycling, connecting Ryogoku Station and the Boso Peninsula area. Its most distinctive feature is that passengers can bring their bicycles on board without disassembling them. The name is derived from the initials of "BOSO BICYCLE BASE." Bicycle racks are installed inside the train, allowing you to travel to Boso with your beloved bike. All cars are reserved seating, and it is primarily sold as a travel product. As it is a train that operates on limited days, you need to check the operating dates if you plan to ride it. There are other trains with similar names and destinations, so it is advisable to check the train name and destination on the departure information display before boarding.

What is "B.B.BASE"?

"B.B.BASE" is a special train operated by JR East specifically for cyclists. Normally, when bringing a bicycle onto a train, it needs to be packed in a bike bag and disassembled. With "B.B.BASE," you can secure your bicycle directly to the racks inside the train. The Boso Peninsula has a flat coastline and moderate hills, making it an ideal region for cycling. The operating section varies depending on the direction, such as Uchibo, Sotobo, and Choshi.

Train Features and Popular Points

The appeal of "B.B.BASE" lies in its ease of transport, allowing you to carry your bicycle without disassembling it. Simply secure it to the bicycle rack inside the train, and you can travel with your beloved bike. Since there's no need to pack and assemble it in a bike bag, you can start riding immediately upon arrival. A free space for cyclists is provided inside the train. The Boso Peninsula boasts numerous cycling courses along its coastline. On some days, you can see Mount Fuji across Tokyo Bay from the Uchibo coast. The Sotobo coast offers magnificent views of the Pacific Ocean. Choshi is known for being one of Japan's leading fishing ports and for the Inubosaki Lighthouse. Checking the stations served and travel time before boarding makes it easier to plan an itinerary that includes stops along the way. The scenery outside the window changes greatly depending on the season, so it's recommended to choose the time of year that suits your purpose. The Boso Peninsula is close to the city center and is suitable for cycling day trips.

"B.B.BASE" Timetable

*The "B.B.BASE" is a train that operates only on specific days.

Downbound (towards Stations in the Boso Area) Timetable

Timetable for Northbound Trains (towards Ryogoku Station)

"B.B.BASE" operates only on select days (mainly Saturdays and Sundays). Since the schedule may change depending on the season and timetable revisions, it's best to check the latest schedule on the Ekitan website before boarding. There are more trains during the morning and evening, but the intervals may be longer during the daytime. If you have connecting trains or buses, it's advisable to choose connections that allow ample time before your arrival.

• Limited Express Fare, Ticket and Timetable - Ekitan

Important Information Regarding Operating Days and Service Suspensions

"B.B.BASE" is a train that operates mainly on weekends and holidays. The operating section varies depending on the day, such as Uchibo, Sotobo, and Choshi. The operating days are announced in advance, so be sure to check if you plan to ride it.

"B.B.BASE" Operating Section

Main Sections

• Ryogoku Station to Chiba Station (JR Sobu Main Line)
• Chiba Station to Boso area (JR Uchibo Line, JR Sotobo Line, JR Sobu Main Line, etc.)
• To various destinations in the Boso Peninsula

The Boso Peninsula has well-maintained cycling courses along its coastline. Inubosaki in Choshi is one of the places in Japan where you can see the first sunrise of the year earliest. Kujukuri Beach on the Sotobo coast stretches for about 60 kilometers. From Futtsu Cape on the Uchibo coast, you can sometimes see Mount Fuji across Tokyo Bay. Kamogawa Sea World is an aquarium known for its killer whale shows. Southern Boso has many flower fields and roadside stations, making it a great place to take a break while cycling. The Choshi Electric Railway is a popular local line. Since getting to nearby tourist spots mainly involves buses and walking, it's a good idea to check local transportation options beforehand. Tourist information centers are sometimes located around stations where you can get maps and brochures. On lines with limited service, it's reassuring to check the return train and bus schedules as well. Ryogoku Station is a terminal in a downtown area known as a sumo wrestling town.

"B.B.BASE" Stations Served

Main Stations Served

• Ryogoku Station
• Chiba Station
• Stations in the Boso area

*The stations served vary depending on the train.

"B.B.BASE" Fares

Representative Section Fares

Breakdown of Base Fare and Limited Express Fare

The "B.B.BASE" fare is set as a travel product price. The fare may include both the base fare and the seat fee. When purchasing tickets, make sure you have both the base fare ticket and the seat ticket. JR limited express fares are set according to the distance traveled, and the amount may vary depending on whether it is a regular season, peak season, or off-peak season. The fare is divided into the "base fare (fare)" for the journey to the destination itself and the "limited express fare" for riding the limited express train. Note that you cannot ride a limited express train with just a base fare ticket, as you must purchase both.

Regarding Bringing Bicycles Onboard

On "B.B.BASE," you can secure your bicycle directly to the rack inside the vehicle. Since the number of racks is limited, you must declare that you will be bringing a bicycle when making your reservation. Depending on the size of your bicycle, it may not be possible to secure it to the rack. Even if you do not bring a bicycle, you may still be able to ride the train.

How to Buy Tickets for "B.B.BASE"

Booking as a Travel Product

"B.B.BASE" is primarily sold as a travel product. Reservations are made through designated booking websites and travel agencies. Since seating is limited, early booking is recommended. When booking, you will specify the travel date, route, train name, and number of passengers, and then select your seats. Payment can be made by credit card, and cash is also accepted depending on the purchase method. Changes and refunds after booking are subject to certain conditions and fees.

 

 

Precautions When Purchasing

If you are bringing a bicycle, you must declare this when making your reservation. Since the operating section varies from day to day, be sure to check your destination before making a reservation. Ticket machines are often multilingual, making them easy to use even if you don't understand Japanese. At the ticket office, simply tell the staff your destination and desired departure time, and they will guide you to the appropriate train. During peak seasons, the ticket office can get crowded, so it's best to go with plenty of time to spare.

Travel Agencies

Some major travel agencies may offer travel products that combine a ride on the "B.B.BASE" train with accommodation.

How to Buy for International Tourists

"B.B.BASE" is a JR East train, but because it is sold as a travel product, it may not be usable with the JR Pass. It is necessary to check the usage conditions in advance. Some station ticket offices offer information in foreign languages. Special tickets for international tourists may have limited purchase conditions and sales locations, so it's best to check before traveling.

Is Ticket Issuance Required?

If you purchased this as part of a travel product, you will need to receive your ticket or exchange voucher using the specified method. If you are receiving a paper ticket, it is best to pick it up well in advance of your departure, rather than immediately before boarding. Tickets cannot be reissued if lost, so please keep them safe while traveling.

Can I use IC Cards or Credit Card Touch Payment?

While much of the route is within the Suica area, "B.B.BASE" is sold as a travel product, so you cannot ride it with just an IC card. Transportation IC cards can sometimes be used across regions thanks to the nationwide interoperability service. However, the usable area is determined by each railway company, so be sure to check in advance whether your route is within their service area.

Credit card touch payment for boarding at ticket gates is not available.

*Please note that you cannot board using only an IC card. Advance reservations are required.

"B.B.BASE" Seating Information

Seat Types

"B.B.BASE" is an all-reserved-seating train. It features a passenger compartment equipped with bicycle racks. Because seating is limited, it's best to book early once your travel dates are confirmed. You may be able to choose between window and aisle seats when booking. If you wish to sit next to your travel companions, booking together makes it easier to secure adjacent seats.

Distinctive Seating

The train is equipped with bicycle racks, allowing you to secure your bike directly. The seats are designed to be comfortable even while wearing cycling attire. You can also enjoy interacting with other cyclists in the free space. The train's interior is designed with cyclists' convenience in mind. The scenery changes depending on the direction of travel, so it's a good idea to check your seat location when making a reservation. Window seats are suitable if you want to enjoy the scenery, while aisle seats are suitable if you prioritize ease of boarding and alighting. For long journeys, it's best to check your seat location in advance and make a reservation for a more comfortable experience.

Large Luggage Storage Area

In addition to bicycles, there is space to store cycling gear.

Barrier-Free Facilities

If you will be using a wheelchair, it is recommended to consult with JR East's ticket office in advance. Multipurpose rooms and wheelchair-accessible facilities may vary depending on the train car and configuration.

 

 

Enjoy Ekiben (Train Station Bento Boxes) and Onboard Gourmet Food on "B.B.BASE"

Onboard sales services on "B.B.BASE" are limited. It is recommended to prepare drinks and snacks before boarding. In Boso, seafood rice bowls made with fresh seafood are a local specialty. In Choshi, you can enjoy dishes made with sardines and tuna. Onboard sales vary depending on the train and season, so it is best to prepare drinks and snacks before boarding. If you eat or drink on board, please be considerate of others by avoiding foods with strong odors to ensure a pleasant experience. Dispose of empty containers and trash in the trash cans on board or at the station after disembarking.

Points to Note When Riding "B.B.BASE"

"B.B.BASE" operates only on limited days, so be sure to check the operating dates before planning your trip. If you are bringing a bicycle, you must declare this when making your reservation. There is a limited number of bicycle racks, so early reservations are recommended. The operating section varies from day to day, so check your destination before making a reservation. As it is sold as a travel product, the purchase method is different from regular tickets. Before boarding, be sure to check the train name, car number, and seat number written on your ticket. If you are bringing large luggage, please use the luggage racks or overhead compartments to avoid blocking the aisle. Onboard, it is good manners to keep phone calls to a minimum so as not to disturb other passengers.

When cycling, please follow traffic rules and wear a helmet. It's a good idea to check the train service status on Ekitan or the railway company's official website before you board.

Summary

"B.B.BASE" is a JR East train specifically designed for cyclists, connecting Ryogoku Station and the Boso area. It allows passengers to bring their bicycles on board without disassembling them. Because it operates on limited days and is sold as a travel product, be sure to check the operating dates and booking methods before boarding.

Enjoy a cycling trip to the Boso Peninsula with your beloved bicycle on "B.B.BASE".

Ekitan Travel Media Editorial Department

The Ekitan Travel Media editorial team provides information on transportation in Japan, including Shinkansen (bullet trains), regular trains, intercity travel, and access to tourist destinations. We also offer easy-to-understand travel information for international visitors to Japan.
This article is published by Ekitan Co., Ltd., the provider of the train transfer information service "Ekitan," and is based on Japanese railway and transportation information. Ekitan's website and app are used by over 10 million users per month.