1. What is Bicycle Reach?

Bicycle reach is the horizontal distance from the bottom bracket to the center of the handlebars. It's a key measurement for determining bike fit and rider comfort.

2. How Does the Calculator Work?

The calculator uses the reach formula:

Where:

• \( Frame\ Reach \) — Horizontal distance from bottom bracket to head tube (mm)
• \( Stem\ Length \) — Length of the stem (mm)
• \( Head\ Angle \) — Angle of the head tube (degrees)

Explanation: The formula accounts for both the frame geometry and the stem configuration to determine the total reach.

3. Importance of Reach Calculation

Details: Proper reach is crucial for bike fit, affecting comfort, control, and power transfer. Incorrect reach can lead to back pain, shoulder strain, or handling issues.

4. Using the Calculator

Tips: Enter frame reach and stem length in millimeters, head angle in degrees. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical reach measurement?
A: Road bikes typically have reach between 370-400mm, while mountain bikes range from 420-500mm depending on discipline.

Q2: How does reach affect bike handling?
A: Longer reach creates a more stretched-out position for better high-speed stability. Shorter reach offers more upright positioning for comfort and maneuverability.

Q3: Can I adjust reach without changing the frame?
A: Yes, through stem length/angle adjustments, handlebar width/sweep, and headset spacers.

Q4: How does reach relate to stack?
A: Reach and stack work together to determine bike fit. Stack is the vertical component while reach is the horizontal.

Q5: Should reach be the same across bike types?
A: No, optimal reach varies by bike type and riding style. Aero road bikes typically have longer reach than endurance bikes.