Information for the new or leisure cyclist Information for the racing or touring cyclist Cycling initiatives, routes etc.
Basic maintenance
Brake checks
Brake care
Brake adjustment
Bottom bracket
Chain care
Chainset care
Front derailleur
Rear derailleur
Types of gears
Hubs and bearings
Wheels and tyres
Advanced checks
General checks
Gears and chain
Fork and frame
Wheels and tyres
After a crash
Types of gears

The gearing system on your bike is, next to your brakes probably the next most important part of the bike (assuming you also include the chain). In this section we provide a quick summary of the different components within the gearing system and the different types of them.

Rear derailleur

Mountain Bike Rear Derailleur

This has a long chain cage and is usually controlled by a handlebar gear shifter.

Road Racing Rear Derailleur

This has a short chain cage. This keeps the weight of the bike down and makes gear changing easier. The shifter on the down tube of the frame or STI/Ergo power levers, on the handlebars controls it.

Economy Rear Derailleur

This one is made of steel. It bolts straight into the frame rather than onto a gear change hanger.

Front derailleur

Mountain bike front derailleur

This has a wide chain cage to accommodate triple chain rings that have big jumps in size between them. An indexed shifter on the handlebars controls them.

Road racing front derailleur

This is a light chain cage is less wide to accommodate the 2 chain rings normally present on this type of bike.

Hub gears

Five or Seven-Speed Hub Gears

They are designed as low-maintenance gears for city bikes. Again a click shifter of some description fitted on the handlebars controls these.

Three-speed hub gears

These are for utility bikes and have a click shifter on the handlebars.

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