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

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

The 16mm inward offset keeps the original T-Line chainline.

Fits the Brompton T-Line carbon fiber crankset.

Designed for a 1X setup and installs one chainring.

Available in 110BCD and 130BCD options.

Buy Now

 

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）

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

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