BackcountryNew · Checked Nov 4, 2026, 5:33 AM
$69.99In stockVisit store
Stems
PRO Koryak Stem Black, 31.8x90mm, +/-6 Deg
MPN PRSS0536
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
Retailer offers
Where to Buy
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Competitive CyclistNew · Checked Nov 4, 2026, 4:31 AM
$69.99In stockVisit storeAmazonExact Match Verified
Technical data
Specifications
- Clamp diameter
- 31.8 mm
- Stem length
- 90 mm
- Stem angle
- 6°
- Steerer clamp diameter
- 28.6 mm
Catalog trust
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 9, 2026
- Compatibility review
- Reviewed Sep 9, 2026
Approved technical sources
- Reviewed cockpit fact at Paul Lange exact Koryak stem matrix
- paul-lange-ukraine.com/images/upload/files_materials/52/88/pro-2023-pdf.pdfManufacturerSource checked Sep 8, 2026Evidence reviewed Sep 8, 2026
- Reviewed cockpit fact at backcountry catalog row 13279
- backcountry.tnu8.net/c/7664279/1942899/5311ManufacturerSource checked Sep 5, 2026Evidence reviewed Sep 8, 2026