If you choose derailleur gears there are lots of options to select from to get the perfect gear system for you.
Road vs Mountain bike chainset: There are two main types of front gears or chainsets, road bike type and mountain bike type. There is a chart below of the chainsets we carry and their chainrings. In most cases we carry two options, a low cost and a more premium unit.
Road bike chainsets have larger chainrings giving a gear range which is more suited to powerful riders or riders who live in flatter areas. They can also pair well with 20” wheels to give a higher top gear and allow more speed without spinning your legs out.
Mountain bike chainsets have smaller chainrings which allows lower gears for climbing hills so they suit riders who live in hilly areas, touring riders and weaker riders better. They are also good to choose with 26” rear wheels to give lower gears more similar to a 20” rear wheel with a road chainset.
We also carry a couple of middle range chainsets which, while technically being mountain bike chainsets, have mid-range chainrings. These are great for getting the perfect balance of gears. Think of them as Goldilocks chainsets, if the road ones are too high and the mountain ones are too low these might be just right.
We also have a short crank chainset available for riders with shorter legs or with knee or hip issues which is 152mm rather than the more standard 170mm. The short cranks reduce the size of the circle that your foot tracks through the pedal rotation and by doing this they reduce the range of angles that your knees and hips go through. We chose a short crank chainset with small chainrings as the smaller levers mean you need smaller gears.