Nitto UI-27 Stem
The Nitto UI-27 showcases Nitto's signature craftsmanship and sleek, understated aesthetic—featuring the clean, engraved Nitto logo on the drive side. It's cold-forged from aluminum, offering lightweight strength and style that complements both aggressive road setups and upright touring rigs.
Available in polished silver or glossy black, the UI-27 maintains a classic finish that will remain beautiful for years. With its flippable 17°/–17° angle, it can be set parallel to your top-tube for a race posture or inverted for a relaxed, upright ride—making it versatile for mixed-use setups.
The “UI” in Nitto UI stems stands for Ultimate Ideal, and the UI-27 truly lives up to that legacy.
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Stack height: 40 mm
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Angle: ±17° (flippable 17°/–17°, i.e., 73° from horizontal when flipped correctly)
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Clamp diameter: 31.8 mm (handlebar)
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Steerer clamp: 28.6 mm (1-1/8")
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Lengths: 70–120 mm (in 10 mm increments)
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Weight: approx. 155–180 g, depending on length
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Made in Japan