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- ZH
- Last added
- 2012-03-15
Featured SG-3R75 manuals

SG-3R75 Within -3 hub GJ-NX40 brake shoe Box Connection Implement Manual
This guide provides safety precautions and step‑by‑step instructions for installing the CJ‑NX40 brake shoe box connector on a bicycle hub. It covers proper torque values, alignment of the connector, and required tools.
Additional maintenance advice includes recommended lubrication, cleaning procedures, and periodic service intervals to keep the hub operating safely and reliably. This manual is written in Chinese.
Covers: Safety Precautions · Compatibility of Chainrings · Installation of Chainring on Hub · Mounting the Brake Shoe Box Connector · Torque Settings · Lubrication and Cleaning
Latest SG-3R75 manuals
SG-3R75 Within -3 hub GJ-NX40 brake shoe Box Connection Implement Manual
Installation Guide 1 pages · 356 KB · ZHInstallation guide for the Shimano CJ‑NX40 brake shoe box connector with safety and torque instructions.
Which document do I need?
Installation Guide
Mounting, wiring and first power-up. Read it before the hardware goes in.
Questions answered in SG-3R75 manuals
What chainring sizes can be used with the CJ‑NX40 connector?
The connector is compatible with front sprockets of 18‑23 teeth and rear sprockets of 19‑23 teeth.
From: SG-3R75 Within -3 hub GJ-NX40 brake shoe Box Connection Implement Manual
What torque should be applied to the brake arm bolts?
Apply a torque of 2‑3 Nm (20‑30 kgf·cm) to the brake arm bolts.
From: SG-3R75 Within -3 hub GJ-NX40 brake shoe Box Connection Implement Manual
