1. What is a Mountain Bike Reach Calculator by Height?

Definition: This calculator estimates the ideal mountain bike reach measurement based on the rider's height and a height factor.

Purpose: It helps cyclists and bike fitters determine an appropriate bike frame size for optimal comfort and performance.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( R \) — Recommended reach (mm)
• \( k \) — Height factor (typically 0.445)
• \( H \) — Rider height (mm)

Explanation: The rider's height is multiplied by a factor that represents the optimal reach-to-height ratio for mountain biking.

3. Importance of Proper Reach Measurement

Details: Correct reach ensures comfortable riding position, proper weight distribution, and optimal control of the bicycle.

4. Using the Calculator

Tips: Enter your height in millimeters and the height factor (default 0.445). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the height factor based on?
A: The 0.445 factor is derived from industry standards and biomechanical research for optimal mountain bike fit.

Q2: Should I measure height with or without shoes?
A: Measure barefoot height for most accurate results, as cycling shoes typically have standardized thickness.

Q3: When would I adjust the height factor?
A: Experienced riders might use 0.45-0.47 for aggressive riding, or 0.42-0.44 for more upright positions.

Q4: How does reach relate to bike size?
A: Reach is one of several key measurements (with stack) that determine modern mountain bike sizing.

Q5: What if my current bike's reach differs?
A: Small differences can be adjusted with stem length, but significant deviations may require a different frame size.