"Stinner uses Velospec air-hardened steel for the front triangle and 6061 aluminum for the rear triangle. Unlike some other frame manufacturers that use 3VO Suspension, Stinner manufactures the rear triangle in-house. This allows them to control the stiffness of the rear triangle, tailoring it to the needs and expectations of a full-suspension bike."
"While most of the frame is made from more traditional tubing, the seat tube tower and lower section are 3D printed from 316 stainless steel. This allows the seat tube to be attached to the downtube while allowing room for the 3VO suspension components."
"Pairing the steel front and aluminum rear gives the Romero a unique ride feel, with bump-absorbing qualities of steel married to the snappiness of aluminum. The 3VO platform sits at approximately 105% anti-squat."
Stinner introduced the full suspension Romero bike at the Sea Otter event in 2025, showcasing a unique design that combines Velospec air-hardened steel for the front triangle and 6061 aluminum for the rear. The rear triangle is manufactured in-house, allowing for tailored stiffness. The frame incorporates 3D printed components for the seat tube, enhancing compatibility with the 3VO suspension system. This combination results in a distinctive ride feel, blending the bump-absorbing qualities of steel with the responsiveness of aluminum, achieving approximately 105% anti-squat.
Read at Bikerumor
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