If your bicycle is equipped with a Shimano Nexus 3-speed hub with freewheel (i.e., without a coaster brake), where the hub type is SG-3R40 and the hub is secured with nuts, then this hub unit is an excellent replacement part from Shimano. The axle length of your bicycle must be 176.8 mm in order to use this unit.

If you are experiencing issues with the functionality of the pinion hub used on the bicycle, it is beneficial to replace the entire unit in this hub. It can be difficult to pinpoint the cause of a malfunction, and therefore it is often resolved by replacing the entire unit. To ensure that this specific unit is suitable for your bicycle, you can read the type number on the hub cover. If this number appears as SG-3R40, then this unit is appropriate. Don't forget to also measure the axle length, which must match as well.

Features:

• Shimano Nexus 3-speed hub
• Compatible with Shimano Nexus type: SG-3R40
• Hub with freewheel and intended for roller brake
• Hub type: Secured with nuts
• Axle length: 176.8 mm
• Quality level
• Shimano is known for its high quality in bicycle replacement parts, creating essential components for amateurs and professionals for many years to optimize the cycling experience. This has given them a dominant position in the international market, where comfort and functionality are harmonized with a careful selection of materials and innovative technologies.