Terms & Conditions of Use

Terms & Condition

This site is owned and operated by BigOne. These terms of use apply to and govern your and any authorized user of your account, use of this site, including all services provided therein. By using this site, you signify your agreement to all terms, conditions, and notices contained or referenced herein (the “Terms and Conditions of Use”).
BigOne reserves the right, at its sole discretion, to change, modifies, add or remove any portion of this site or these terms and conditions of use, in whole or in part, at any time. Please check the Terms and Condition of Use periodically for changes. Changes to these Terms and Condition of Use will be effective when posted.

Description of Service

When you place an order through our website, we will treat the order. Once the order is placed, you will receive the confirmation by e-mail. Then, we enter into a contract with you. You understand and agree that the service is provided As-Is and that BigOne assumes no responsibility for the timelines, deletion, miss delivery, or failure of the service.

Rules of User Conduct Agreement

You agree to abide by all terms contained on BigOne’s website and not to use the website for any unlawful purpose.

User Comments

BigOne is welcome to your comments about BigOne website and services. However, if we judge the comments, feedback, notes, messages, ideas, suggestions, or other communications are not suitable, we can deleted them immediately.

Product Specifications and Matching

On BigOne’s website, we use the name of motorcycles for Japanese market, so some of them are same model but different name. Please understand the situation that is your risks to buy any times for your motorcycles that are not listed as a suitable model. It is not our responsible even if the same model with different name and the parts cannot be installed. Please make sure it is possible to install and fit the parts into the motorcycle. BigOne cannot be held for any liable for any damage caused by the fitting of spare parts.

Some parts didn’t make in Japan, so there is some small scratch on the products. You might need to readjustment to install the product by yourself because the products are not genuine product. If your vehicle is really old one and the vehicle with accidents, you might not be able to install the products even if they are genuine product. If you are not sure to install the products, please see the motorcycle shop near by you. BigOne are also selling the items in Japan, so the items may be out of stock when you order them. Please understand the situations to buy the items.


We accept the payment by credit card (VISA, MasterCard, JCB), PayPal, and Alipay. The retail price is displayed in US dollar.
The item price does not include shipping costs. Please make sure to place in your order. Some of the items cannot be cancelled. Please check the shipping cost with us if you are not sure how much the shipping cost.

The price of the items will be changed without any announce because of the exchange rate. The exchange rate is changing every day.
If you chose to pay with credit and Alipay payment, the demand of the price will be changed even if you had already paid because of the exchange rate.

If you order from outside of Japan, you may require paying import duties and taxes to customer’s country of residence. Import duties, taxes, and charges are not included in the item price or shipping cost. This is the customers’ responsibility to pay import fee. Regarding customs duties, please inquire with the relevant authorities in the customer’s country before purchasing.
Please make sure you can import the items into your country or not before purchasing. After we sent items, there is no responsibility for us.

Availability and Estimated Delivery Times

BigOne has no responsibility to you for any delay in the delivery time. We will send the delivery item number by e-mail. You can check your order on the Internet or you can contact us with your name and order number.
However, if you choose the cheap delivery term such as SAL and Ship, it might not have delivery item number (depend on the countries). Then, we can’t track the item.


The delivery method is basically EMS with Japan Post. If you want to choose the cheaper one, there is SAL and Ship delivery method available. Those delivery methods take more days than EMS.
Shipping costs are calculated based on the Japan Post System. Shipping costs are subject to change without any announce.
Please check the following URL to calculate the shipping costs.


You can check available delivery countries from Japan Post Website.
Please check the following URL to check the available delivery countries.


The shipping cost is included packing fee but not included delivery insurance.
However, Japan post covers up to 20,000 JPY without paying insurance fee.


If your order has not already been delivered, we can cancel the order. When you decide to cancel your order, please immediately contact us with your name and order number.
If your order has already been processed, it may be too late to cancel the order. If so, you can return the item, and we will refund the purchase price. Unfortunately, the original shipping cost is not refundable, and also, the other all costs and service fees will be your responsibilities to pay.

There are some items that we order the manufacturers when you place the order. You cannot cancel the order after we order the items to the manufacturers.


If there were the defective products when you received them, please let us know by e-mail first within 7days with the following information.

  • Name of the item
  • The order number
  • Your name
  • Your vehicle that you will install the item if you order the parts
  • Analyzing the defective position with pictures

After we confirmed the defective products, we will resolve and prepare them.
We may ask you to send the pictures again if we couldn’t see the defective position, so please make sure it is clear or not.

We will not accept the return by following situation.

  • Because of your matter of convenience such as you want to change the size, color, or different items.
  • You didn’t contact us before return the items.
  • You didn’t reply to our e-mail by one week.
  • Without a tag.
  • After you open the product.
  • After you use the product.
  • You made the dirt or scratch on the product.
  • There is the big difference between before ship and after ship include everything such as box and other parts.


The copyright in all material provided on this site is held by BigOne or by the original creator of the material. You may not use any material contained on this site on any other server without BigOne’s permission. Any unauthorized use of any material contained on this site may violate laws.


BigOne is the sole and rightful claimant of the BigOne’s logo. The trademarks of items sold on the website are all registered trademarks of the respective rightful claimants and use the trademarks to distinguish between items on the website. We use the trademarks on the website by laws.

Use of Site Content

BigOne maintains this site and the contents for the information. You may view and download the material displayed on the site for your personal, not for commercial use only. You need to get BigOne’s permission to use the contents of the site for any outside of the site. The contents of the site (any material) are copyrighted and any unauthorized use may violate laws.


BigOne contracts one of the best Japanese security companies. Also, our website use Secure Sockets Layer (SSL). SSL encrypts your credit card number, name and address so only we are able to decode your information. SSL is really good security system. Unfortunately, however, no data transmission over the Internet can be guaranteed to be 100% secure. We strive to protect your contact information, to the extent permitted by law, but we don’t guarantee or warrant the security of the information that you put or from to our website. That is your own risk.

Policy Changes

BigOne can change any policy without noticing you. We will post the notice on the website, as applicable. The changed will go into effect on the effective date posted in the notice or the effective posted on the website. The new policy will apply to all current and past users of the website and will replace any prior policies are inconsistent. Please understand the policy changes to use the website or other service constitutes your acceptance of the practices described.