SHIMANO Nexus Internal Gear 3 Speed Hub - SG-3R40 for use with Roller Brake This Shimano Nexus Internal Gear 3 Speed Hub, model SG-3R40, is a high-quality replacement for your old hub. It is compatible with Shimano and other brands, and is designed to work with a roller brake. The silver color and nut attachment style make it a sleek and durable choice for your bike. The hub has 36 holes and is made in Japan. It is suitable for use with cruiser and city bikes, and comes with one item. Upgrade your bike's performance with this reliable and efficient hub. 20% RESTOCKING FEES AND SHIPPING WILL BE CHARGED. IF ITEM IS FUNTIONAL OR INCOMPLETE. An Important Message Regarding USPS Tracking Numbers Due to high volume of shipments sent through USPS, Tracking numbers get recycled on occasion. This means, when you receive the notificaiton that your package has been shipped via USPS, and you try to track the status of the package, it may show your package was Delivered even though the label was just generated. Please don't panic, the solution to this issue is to wait until the Post Office scans the label, then the tracking information will update accordingly. Please let us know if you have any questions. Your feedback is extremely important to us! If you are satisfied with our service please take the time to give us positive feedback. We tremendously appreciate it! We strive for your complete satisfaction. Likewise, if you have any issues, please contact us first, and we promise we will do our best to satisfy your needs and solve the problem. If we resolve your problem, we kindly ask you to still leave us positive feedback. Your kindness will be extremely appreciated!