Most bikes come with gears but are they the right gears for the type of riding you do? Cycle Surgery's chief mechanic Andrew Brown runs through your gear choices and how to fit new gears

In our last bike maintenance video we showed you how to set your gears up for maximum shifting efficiency - in this video we take things a stage further by looking at the different gear ratios options available to you and how to fit then to your bike. 

If the standard gear set up on your bike doesn't suit the terrain you ride over or your riding style - you can change it for something more suitable by swapping out the front chainrings or chainset and/or the rear cassette. It may sound daunting but with the right tools and some knowhow supplied by Cycle Surgery tech guru, Andrew Brown it is totally doable. 

The whole series of our bike maintenance videos is available now on Youtube to help you get to grips with the essentials of keeping your bike running efficiently all year round. 

How to Clean and Lube Your Bike for Maximum Cycling Efficiency
How to Get the Best from Your Bike's Brakes
How to Keep Your Bike's Wheels Round, Tight and True
How to Adjust Your Bike's Gears for Maximum Shifting Performance
How to Choose the Right Gear Ratios for You and Your Bike
How to Cure Your Bike's Creaks and Squeaks
How to Choose and Set Up the Right Tyres for Your Bike

Tony has been editing cycling magazines and websites since 1997 starting out as production editor and then deputy editor of Total Bike, acting editor of Total Mountain Bike and then seven years as editor of Cycling Plus. He launched his first cycling website - the Cycling Plus Forum at the turn of the century. In 2006 he left C+ to head up the launch team for Bike Radar which he edited until 2008, when he co-launched the multi-award winning road.cc - which he continues to edit today. His favourite ride is his ‘commute’ - which he does most days inc weekends and he’s been cycle-commuting since 1994. His favourite bikes are titanium and have disc brakes.


CXR94Di2 [2773 posts] 9 months ago

Missed a few options out, double sub compacts 48/32, 46/30 available now by FSA, also Absolute Black do rings for most compacts to reduce the chain rings. 

Also MTB chainsets work perfectly on road setups if you  still want even lower gearing.

There are 11-34 Shimano or 11-36 SRAM 11 speeds.   


Di2 currently has a triple front derailleur which works perfectly with 48/36/26 Doere chainset though it was designed to work on MTB groupsets of 42t or less.


Nepomucene [8 posts] 2 weeks ago

1x setups now also offer rather wide range of gears, without the overlap of 2x and 3x setups.

My GRX is currently a 11-42, but I am considering in a near future changing hub and cassette to go to 10-42.

Starts being a rather interesting range, with a simple single derailleur system...