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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 110/130BCD Chainring Spider for Brompton T-Line Carbon Crankset 1X Adapter

Fits the original Brompton T-Line carbon crankset for 1X setups.
16mm inward offset preserves the original T-Line chainline.
Choose 110BCD or 130BCD; one chainring only.

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STONE 110/130BCD Chainring Spider for Brompton T-Line Carbon Crankset – 1X Direct Mount Adapter

Upgrade or customize your Brompton T-Line drivetrain with the STONE direct mount chainring spider. Engineered specifically for the original Brompton T-Line carbon fiber crankset, this adapter lets you mount a standard 110BCD or 130BCD single chainring to build a 1X drivetrain. Machined from 7075-T6 aluminum, it offers a precise, low-play fit while keeping the original T-Line chainline.

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

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 (spider)
Compatibility Brompton T-Line carbon fiber crankset
Drivetrain type 1X 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 and supports installation of one chainring only
  • Select the 110BCD version if you want to install a 110BCD chainring, or the 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 Cannondale, 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 Includes

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