Mountain Bike Size Chart

Find the perfect mountain bike size based on your height and riding style.

Standard Mountain Bike Sizing Chart

Let's find your perfect mountain bike size

Standard Mountain Bike Sizing Chart
Frame SizeRider HeightInseamReachStandover
XS152-162cm68-73cm400mm710mm
S162-170cm73-78cm420mm730mm
M170-178cm78-83cm440mm750mm
L178-185cm83-88cm460mm770mm
XL185-193cm88-93cm480mm790mm

Mountain Bike Categories

Cross Country (XC)

Optimized for speed and climbing efficiency

  • Steeper head angles (67-69°)
  • Longer reach for aggressive position
  • Lower standover for quick dismounts

Trail

Balanced geometry for all-around riding

  • Moderate head angles (65-67°)
  • Mid-range reach for comfort
  • Balanced standover height

Enduro

Focused on descending capability

  • Slack head angles (63-65°)
  • Shorter reach for maneuverability
  • Higher standover for clearance

How to Use This Chart

To find your ideal mountain bike size:

  1. Measure your height and inseam length accurately
  2. Determine your primary riding style (XC, Trail, or Enduro)
  3. Find your measurements in the chart above
  4. Consider sizing up or down based on riding style

Remember that this is a general guide. Modern mountain bikes often use different geometries based on their intended use. XC bikes might run larger, while enduro bikes might run smaller for better maneuverability.

Pro Tip

Consider test riding different sizes if you're between sizes. Modern mountain bikes have longer reach numbers than older bikes, so you might prefer a size smaller than the chart suggests, especially for technical riding.