Finding the perfect fit is critical for comfort and performance. Below, you will find our comprehensive size chart for the Factor Road & Gravel Bikes (OSTRO, O2, MONZA, LS, etc.), detailing exact rider heights in feet, inches, and centimeters to help you select the optimal frame.
Factor Road & Gravel Bikes (OSTRO, O2, MONZA, LS, etc.) Height Sizing Chart
| Frame Size | Rider Height (Imperial) | Rider Height (Metric) |
|---|---|---|
| 49 | 5’2″ – 5’6″ | 158 cm – 168 cm |
| 52 | 5’6″ – 5’8″ | 167 cm – 173 cm |
| 54 | 5’8″ – 5’10” | 172 cm – 178 cm |
| 56 | 5’10” – 6’0″ | 177 cm – 183 cm |
| 58 | 6’0″ – 6’2″ | 182 cm – 188 cm |
| 61 | 6’2″ – 6’5″ | 187 cm – 195 cm |
Road Bike Fit Tip: Road bikes prioritize aerodynamics and power transfer. The correct frame size allows for a slight bend in your elbows when resting on the brake hoods, and ensures your knee is perfectly aligned over the pedal spindle at the 3 o’clock position.
What to Do if You Are Between Factor Sizes?
If your height falls squarely on the borderline between two sizes for the Factor Road & Gravel Bikes (OSTRO, O2, MONZA, LS, etc.), don’t panic. This is a normal occurrence in bike geometry. Here is how to decide which way to go:
Choosing the smaller option gives you a shorter reach to the handlebars, creating a more upright riding position. Opting for the larger frame extends the wheelbase, delivering a highly stable ride at high speeds.
How to Measure Your Height for an Accurate Fit
Finding the perfect frame size requires precision. We highly recommend measuring your current barefoot height rather than guessing. Stand flush against a doorframe, ensure your shoulders are relaxed, and use a tape measure from the floor to the top of your head to get the exact figure. Use a flat-edged object or book resting horizontally on your head to mark the point accurately against the wall before running a tape measure to the floor.
Calculate Your Size Instantly
Input your exact dimensions into our interactive calculation tool below to double-check your frame measurements and explore alternative brand frame shapes.
Factor Bike Size Calculator
Find the perfect frame size for your new Factor bike. Enter your height below to get a precise recommendation.