MTB Front Derailleurs
There are a few things to think about when buying a front derailleur. Firstly check how many gears you at the front and rear. Secondly, check if you need a ‘direct mount’ derailleur that bolts to the bike frame or a ‘band clamp’ type with an integrated clamp that mounts around the seat tube. A band clamp will have to fit around the frame, so you’ll need to check the diameter your frame. Thirdly there are different mechanisms for how the derailleur shifts, with ‘top swing’ or ‘bottom swing’; both are dependent on your frame, so this must be checked carefully before you start buying parts. You should match the front derailleur to your existing groupset – Shimano, SRAM and Campagnolo may not work together well. Although you can mix components, it’s generally easier to stick to one brand to ensure smooth shifting. If you have electronic shifting, then it’s essential to match components as different brands will simply not work together.