Trek Diamant Villiger
Trek Diamant Villiger Adjustable Threadless Stem
The Trek Diamant Villiger Adjustable Threadless Stem gives you flexible cockpit positioning with a clean, reliable direct‑connect design. With two adjustable length options, it’s a solid replacement stem that helps dial in comfort and fit on a wide range of bikes.
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Adjustable design available in 108 mm and 128 mm lengths
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Direct‑connect style for a stable, secure interface
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28.6 mm (1‑1/8") steerer outer diameter
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25.4 mm clamp compatible with classic handlebar sizing
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Aluminum construction for durability and strength
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Genuine replacement part for Trek, Diamant and Villiger bikes
Shipping information
Ships in 2–3 business days with free delivery across Canada on orders over $99. Same‑day pickup available Tue–Sat (closed Sun–Mon).
Returns & warranty
Enjoy hassle‑free returns within 30 days on unused items in original packaging (excludes bikes and sale items). Free in‑store returns anytime.