THEBROMPTONMAN
  • Home
  • Shop
    • Accessories
    • Brompton Bicycles
    • Components
    • Conversions / Servicing
    • Drive Chain Parts
    • Frame Parts
    • Service Parts / Tools
    • Sturmey Archer Parts
    • Tubes / Tyres
    • Wheels / Wheel Parts
  • Servicing
  • The Basics
    • A Line
    • C Line
    • C Line Electric
    • P Line
    • P Line Electric
    • T Line
  • Weights
    • Stock Bikes
    • Frame Parts
    • Components
      • Braking
      • Easy Wheels
      • Handlebars
      • Mudguards
      • Saddles / Seatposts
    • Transmisson
      • Bottom Brackets
      • Chainsets/Chainrings
      • Pedals
      • Shifters
      • Tensioners
    • Wheels/Wheel Parts
      • Front Wheels
      • Rear Wheels
      • Hubs
      • Rims
    • Tyres/Tubes
  • Tech Info
    • Bearings
    • Brompton Electric
    • Cable Lengths
    • Chain Lengths
    • Gear Ratios / Ranges
    • Hope Technology
      • Front Hubs
      • Rear Hubs
    • Datasheets
    • Notes
    • Paint Codes
    • Serial / Frame Numbers
    • Sturmey-Archer
    • Torque Settings
    • Tyres
    • Wheel / Wheel Building
  • Modifications
  • Contact
  • Home
  • Shop
    • Accessories
    • Brompton Bicycles
    • Components
    • Conversions / Servicing
    • Drive Chain Parts
    • Frame Parts
    • Service Parts / Tools
    • Sturmey Archer Parts
    • Tubes / Tyres
    • Wheels / Wheel Parts
  • Servicing
  • The Basics
    • A Line
    • C Line
    • C Line Electric
    • P Line
    • P Line Electric
    • T Line
  • Weights
    • Stock Bikes
    • Frame Parts
    • Components
      • Braking
      • Easy Wheels
      • Handlebars
      • Mudguards
      • Saddles / Seatposts
    • Transmisson
      • Bottom Brackets
      • Chainsets/Chainrings
      • Pedals
      • Shifters
      • Tensioners
    • Wheels/Wheel Parts
      • Front Wheels
      • Rear Wheels
      • Hubs
      • Rims
    • Tyres/Tubes
  • Tech Info
    • Bearings
    • Brompton Electric
    • Cable Lengths
    • Chain Lengths
    • Gear Ratios / Ranges
    • Hope Technology
      • Front Hubs
      • Rear Hubs
    • Datasheets
    • Notes
    • Paint Codes
    • Serial / Frame Numbers
    • Sturmey-Archer
    • Torque Settings
    • Tyres
    • Wheel / Wheel Building
  • Modifications
  • Contact
Search
The stock Drive Chain options are limited to 4 choices; (now no Singlespeed option as of 2021/22)

- Singlespeed 
- 2 Speed
- 3 Speed 
- 6 Speed

Each of these have their place, and for some none of them are quite right. 

With each option you can adjust the ratios and with the 2 Speed and 6 Speed the range, by changing the chainring or sprocket(s) sizes.

You can view the stock gear ranges / ratios here and below the options aftermarket such as the Rohloff Speedhub 14. 
Rohloff Speedhub
2 Speed Ratio Increase
Shimano Alfine
2-3 Speed Conversion
2 Speed DR upgrade mods;

DR Cage with rollers. 
1.9mm x 14mm pins - X2 
Stiffer spring 
Ti Parts anchorage 
Barrel Nut - for straight through cabling. 
​
Powered by Create your own unique website with customizable templates.
  • Home
  • Shop
    • Accessories
    • Brompton Bicycles
    • Components
    • Conversions / Servicing
    • Drive Chain Parts
    • Frame Parts
    • Service Parts / Tools
    • Sturmey Archer Parts
    • Tubes / Tyres
    • Wheels / Wheel Parts
  • Servicing
  • The Basics
    • A Line
    • C Line
    • C Line Electric
    • P Line
    • P Line Electric
    • T Line
  • Weights
    • Stock Bikes
    • Frame Parts
    • Components
      • Braking
      • Easy Wheels
      • Handlebars
      • Mudguards
      • Saddles / Seatposts
    • Transmisson
      • Bottom Brackets
      • Chainsets/Chainrings
      • Pedals
      • Shifters
      • Tensioners
    • Wheels/Wheel Parts
      • Front Wheels
      • Rear Wheels
      • Hubs
      • Rims
    • Tyres/Tubes
  • Tech Info
    • Bearings
    • Brompton Electric
    • Cable Lengths
    • Chain Lengths
    • Gear Ratios / Ranges
    • Hope Technology
      • Front Hubs
      • Rear Hubs
    • Datasheets
    • Notes
    • Paint Codes
    • Serial / Frame Numbers
    • Sturmey-Archer
    • Torque Settings
    • Tyres
    • Wheel / Wheel Building
  • Modifications
  • Contact