City bike platforms

Simplicity and robustness

On a city bike, the chainring prioritises robustness. Many urban bikes, especially those with internally geared hubs, only have a single chainring, often made of steel, which is durable and economical. A ring or chain guard disc, attached to the chainring, helps keep the bottom of your trousers clean and prevents snags: a useful detail for riding in city attire.

The drivetrain

The city bike drivetrain also comes in variations:

• Cranksets.
• Cassettes and Chains.
• Derailleurs.
• Cables and Housing.

The complete drivetrain can be found on the drivetrain page.

Touring and assistance

Touring bikes and hybrid bikes often use a double or triple crankset, which offers a wide range of gears for hills and carrying loads. On electric-assisted bikes with a central motor, the chainring is fixed directly onto the motor axle, with a specific mounting for each motor brand. Be sure to check the mounting distance and the number of teeth before ordering.

Wear and maintenance

A worn chainring shows sharp or deformed teeth, and the chain will skip under load. Replace the chain in time to protect the chainring, and clean the drivetrain regularly, especially after rides in rain and winter, when salt accelerates corrosion. A full chain guard offers even better protection for the drivetrain against the elements.

Good deals

Good deals can also be found in the good plans, promotions, clearance, sales, Black Friday. The new arrivals showcase the latest collections, and items shipped in 24h are prepared and dispatched within 24 hours. The highlights of the year follow a stable order: the Black Friday at the end of autumn, the end-of-year holidays, the winter sales, the French Days in spring, followed by the summer sales and back-to-school period.

Frequently asked questions

What is the purpose of the chain guard disc on a city bike chainring?

Attached to the chainring, the ring or chain guard disc prevents dirt from soiling or snagging the bottom of your trousers in the teeth. A useful detail for riding in city attire without bike clips.

Why do city bikes often have a single chainring?

Coupled with an internally geared hub or a few cogs, the single chainring simplifies the drivetrain, reduces maintenance, and withstands rain and shocks better. It is often made of steel, which is durable and economical.

How to change a city bike chainring?

Remove the right crank arm with a suitable tool, then unscrew the chainring or replace the entire chainring and crank arm assembly depending on the model. Check the bolt spacing and the number of teeth before ordering.

Steel or aluminium chainring for an urban bike?

Steel, which is heavier, resists wear better and is suitable for bikes used every day in all weather. Aluminium, being lighter, is found on sportier bikes but wears out faster.

How many teeth for a city bike chainring?

The number of teeth is chosen with the rear cog: a larger chainring favours speed on flat terrain, while a smaller one aids climbs and loaded starts. On a bike with an internal hub, keep the original combination of teeth.