What’s Your Size?

How did you identify that your mountain bike was the right "fit"?  Unless you've visited an official dealer, chances are you have never been measured up to ensure that the bike you are purchasing is right for your size.  I can't tell you how many people I've seen over the years on bikes that are not right for their size.   As ever it isn't just a question of height so how should you ensure that you get a great fitting bike?

Well over the years things have changed.  The development of compact frames with sloping top tubes have changed the game in recent times and the chances are you will need a much smaller frame than you think.

As a rule of thumb you need a minimum of 2-3 inches of stand over frame clearance with your feet flat on the ground.

If you prefer a more upright riding position you should go for the largest frame that still provides appropriate clearance.

If you prefer more aggressive riding and sped a good deal of time off road then you want as small a frame as possible that still allows you to stretch out your legs.  The last thing you need to be is tucked up.

You should also note the reach to the handlebars.  Usually, the better handling the bike the further the reach.  However, for beginners a long stretch can feel quite uncomfortable.  With regular use though this feeling soon passes but the sensation is very different compared with a regular road bike.

Once you've got the size sorted there are a myriad of potential adjustments that can be made.  I came across a great tool over at Cycling News which alloys you to record key measurements.  This is the kind of thing pro mechanics use but it enables you to record your set up and any changes.  You can then go out for a ride notice the differences and revert or stick as appropriate.  As you'll see there is a lot that goes into maximum comfort and performance.  Notice that even the positioning of cleats on a pair of riding shoes is measured.

There are many benefits to choosing an appropriately sized bike.  They are easier to handle, maneuver and power.  You'll also find you can ride further as they more efficiently convert your energy into power and perhaps most importantly they are more comfortable to ride.   As an example, if you regularly experience knee pain when riding chances are it is more than a lack of fitness.