Multi-gear road or mountain bikes generally have two gear cassettes, one for the front and one for the rear. Front derailleurs commonly select between two cogwheels, although a third is possible ...

The rear derailleur is one of the most fragile components on a mountain bike, subject to getting bent or jammed up with trail debris. That's where the Supre Drive drivetrain comes in, as it moves ...

Much as mountain bike technology has advanced since the days of friction shifting and elastomer shocks, most MTBs are still equipped with dangling, fragile rear derailleurs and dirty chains.

As there are numerous bike-chain manufacturers, varying brands of drivetrains, and different numbers of gears on mountain bikes ... between the bottom of the rear derailleur and the front ...

All bikes with the exception of penny-farthings are geared between the crankset and the rear wheel. Most bikes will include a range of gears, so that you can choose one appropriate to where you ...

Mountain bikers take their sport seriously, and put their bikes through all ... Shimano clutch derailleurs are only really available for 10-speed rear cassettes and up, due to a change in ...