Stem and steerer-rise comparison library
30 precomputed worked examples showing exactly how much a stem length, stem angle, or steerer-rise (spacer) change moves the handlebar clamp, using the site's synthetic baseline frame. Each links straight into the live calculator, prefilled with the before/after measurements.
Stem length change
Worked examples of switching stem length, one length at a time, on the same frame.
- 60mm to 70mm stem swap
- 70mm to 80mm stem swap
- 80mm to 90mm stem swap
- 90mm to 100mm stem swap
- 100mm to 110mm stem swap
- 110mm to 120mm stem swap
Stem angle change
Worked examples of changing installed stem angle, one angle at a time, on the same frame.
- -17° to -10° stem angle change
- -10° to -6° stem angle change
- -6° to 0° stem angle change
- 0° to 6° stem angle change
- 6° to 10° stem angle change
- 10° to 17° stem angle change
Steerer rise / spacer height change
Worked examples of changing total steerer rise (headset cover, spacers, and clamp offset), on the same frame.
- 0mm to 10mm total steerer rise
- 10mm to 20mm total steerer rise
- 20mm to 30mm total steerer rise
- 30mm to 40mm total steerer rise
- 40mm to 50mm total steerer rise
- 50mm to 60mm total steerer rise
Machine-readable: /data/compare.json lists every row with an as-of date and source.
Use the calculator