STONE 110BCD 130BCD Chainring Spider for Brompton T-Line Folding Bike Carbon Fiber Crankset Direct Mount 1X Chainring Adapter 7075-T6 Aluminum

Upgrade or customize your Brompton T-Line drivetrain with the STONE direct mount chainring spider. Designed specifically for the original Brompton T-Line carbon fiber crankset, this adapter allows you to install a standard 110BCD or 130BCD single chainring for 1X drivetrain setups.

Compatibility

• Compatible with Brompton T-Line folding bike carbon fiber cranksets
• Fits the original Brompton T-Line carbon fiber crankset direct mount interface
• Designed for 1X drivetrain use only
• Supports installation of one single chainring

• Available in two BCD options:
  • 110BCD spider: for 110BCD single chainrings
  • 130BCD spider: for 130BCD single chainrings

Note:
The 110BCD and 130BCD versions use the same direct mount crank interface.
Please choose the correct BCD version according to your chainring.

Product Specifications

• Brand: STONE
• Product type: Chainring adapter

• Compatibility: For Brompton T-Line carbon fiber crankset
• Drivetrain type: 1X single speed / single chainring setup

• BCD options: 110BCD / 130BCD
• Offset: 16mm inward

• Material: 7075-T6 aluminum alloy
• Manufacturing process: Full CNC machining

• Process precision: 0.03mm
• Side play: Less than 0.04mm

• Thickness: 16mm
• Weight: 110bcd spider-Approx. 72g, 130bcd spider-Approx. 87g

Offset / Chainline

• Offset: 16mm inward
• Designed to achieve the same chainline as the original Brompton T-Line bike setup
• Helps maintain smooth drivetrain operation and proper chain alignment

Product Options

Option 1: 110BCD Spider

• BCD: 110BCD
• For installing one 110BCD single chainring
• Suitable for compact or smaller chainring size setups

Option 2: 130BCD Spider

• BCD: 130BCD
• For installing one 130BCD single chainring
• Suitable for larger chainring size setups

Important Notice

• This product is designed only for Brompton T-Line carbon fiber cranksets
• Please confirm your crankset interface before ordering
• This spider is for 1X setup only
• It supports installation of one chainring only
• Please select:
  • 110BCD version if you want to install a 110BCD chainring
  • 130BCD version if you want to install a 130BCD chainring

Installation Method

1. A dedicated lockring tool is required for installation and removal. Please prepare the installation tool by yourself.
   

2. The lockring tool specification is the same as the tools used for Cannon--dale, S-Works, and FSA lockrings.

3. Installation/removal direction: turn counterclockwise to loosen, and clockwise to tighten.

4. Recommended lockring tightening torque: 47 Nm.

Package include

1× spider（Chainring and bolts are not included unless stated otherwise）