Bike James Handlebar Width. While 760 mm seems to be a good middle ground width for modern mountain bike handlebars there are pros and cons to both wider. Larger riders need a different size of the handlebar from smaller riders.

Never assume your bike came stock with handlebars that fit you perfectly. The narrower width will improve handling and aerodynamics giving you a more sprint like feel to your riding perfect for track cycling. 760mm 800mm bar width.
Never assume your bike came stock with handlebars that fit you perfectly.
Alan 5ft 11in bar width. In many cases bikes come with wider bars than necessary to satisfy riders on larger frames. For example while we still have handlebars on our bikes the specs on our handlebars have changed over the years. Besides the obvious new stuff you see on bikes today some of the old stuff has changed as well.