Jenson USANew · Checked Sep 10, 2026, 3:20 AM
$59.95In stockVisit store
Stems
Ritchey Comp 4-Axis 30D Stem
70 mm
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
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Evidence and freshness
Technical-source dates and retailer offer checks are separate. A retailer check does not validate compatibility.
Report a correction- Technical review
- Sep 4, 2026
- Compatibility review
- Reviewed Sep 4, 2026
Approved technical sources
- Ritchey official exact clampDiameterMm for 31035317044ManufacturerSource checked Aug 13, 2026Evidence reviewed Aug 13, 2026
Technical data
Specifications
- Clamp diameter
- 31.8 mm
- Stem length
- 70 mm
- Steerer clamp diameter
- 28.6 mm