SG-3R75 Within -3 hub GJ-NX40 brake shoe Box Connection Implement Manual

Instructions on how to install SI-37P0A-002 SG-3R75 CJ-NX40 Inner-3 Hub Brake Pad Connector

SG-3R75 Within -3 hub GJ-NX40 brake shoe Box Connection Implement Manual - cover page
Brand
SG-3R75
Category
Other
Document type
Installation Guide
Language
Chinese
Pages
1
File format
PDF
File size
356 KB
Published
15 March, 2012
Updated
30 September, 2023
MD5 checksum
D1F78ED64137488482EA98C6612ABD60
PDF
SG-3R75 Within -3 hub GJ-NX40 brake shoe Box Connection Implement Manual PDF

About this 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.

What's inside

  • Safety Precautions
  • Compatibility of Chainrings
  • Installation of Chainring on Hub
  • Mounting the Brake Shoe Box Connector
  • Torque Settings
  • Lubrication and Cleaning
  • Maintenance Schedule

Specifications

Front sprocket compatibility18‑23 teeth
Rear sprocket compatibility19‑23 teeth
Brake arm torque2‑3 Nm (20‑30 kgf·cm)
Brake component fixing nut torque20‑25 Nm (200‑250 kgf·cm)

Frequently asked questions

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.

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.

Can the hub be cleaned with high‑pressure water?

No, the hub is not fully waterproof and should not be cleaned with high‑pressure water.

How often should the hub be serviced?

It is recommended to service the hub every two years, or every 5,000 km under frequent use.

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