Bike Stack & Reach Calculator
Find your ideal bike fit measurements
centimeters (cm)
centimeters (cm)
centimeters (cm)
Recommended Stack
0 mm
Recommended Reach
0 mm
Frame Size
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Position Type
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Understanding Stack
- Vertical distance from BB to top of head tube
- Affects riding position height
- Important for comfort
- Influences back angle
Understanding Reach
- Horizontal distance from BB to head tube
- Determines stretching distance
- Affects handling characteristics
- Key for proper weight distribution
Fit Tips
- Test ride before buying
- Consider flexibility
- Account for riding style
- Professional fitting recommended
Here’s a comprehensive table summarizing the key points about bike stack and reach for beginners:
| Aspect | Description |
|---|---|
| Definition | Stack and reach are measurements that describe the size and proportions of a bike frame4. |
| Stack | The vertical distance from the center of the bottom bracket to the top center of the head tube3. |
| Reach | The horizontal distance from the center of the bottom bracket to the top center of the head tube3. |
| Importance | Helps determine the fit and handling characteristics of a bike, allowing for more accurate comparisons between different frames4. |
| Measurement Units | Usually expressed in millimeters, less often in centimeters2. |
| Comparison Tool | Allows for direct comparison between compact-geometry and traditional geometry bikes4. |
| Riding Position | Influences how upright or aggressive a rider’s position will be on the bike3. |
| Stack to Reach Ratio (STR) | Typically ranges from 1.4:1 to 1.6:1, with higher values indicating a more relaxed riding position3. |
| Limitations | Doesn’t account for differences in stem length, handlebar shape, or seat tube angle5. |
| Frame Size Selection | Use stack and reach measurements to find a bike frame that suits your body measurements and riding style. |
| Adjustments | Can be fine-tuned with spacers, stem length/angle, and handlebar reach/drop5. |
This table provides a concise overview of the essential information beginners need to understand about bike stack and reach measurements. It covers the basic definitions, importance, how these measurements affect bike fit and riding position, and some limitations to keep in mind when using these values to compare different bike frames.