In mountain biking, weight is gravity’s currency. For racers and climb-obsessed riders, every gram shaved unlocks speed, agility, and that precious edge over rivals. At Trifox, this obsession birthed the SDY20 hardtail frame – their lightest 29er carbon chassis ever, engineered to turn ascents into triumphs.

The Magic Number: 930g

Weighing just 930 grams (size S, unpainted), the SDY20 isn’t just light – it’s a feat of carbon optimization. Using T1000 carbon with refined layering, Trifox achieves staggering stiffness-to-weight while maintaining trail-taming compliance. This frame isn’t delicate; it’s intelligently minimal.

Why Lighter = Faster?

- Acceleration: Less mass to propel uphill = instant response when you stamp the pedals.

- Agility: Flickable on switchbacks and effortless to loft over roots.

- Endurance: Reduced fatigue = more watts left for the final kick.

Race-Ready DNA Beyond Weight:

- XC Geometry: A 68.5° head angle and 445mm reach balance stability and razor-sharp precision.

- Boost Spacing: 148x12mm rear / 110x15mm front maximize stiffness and wheel compatibility.

- Stealth Integration: Full internal routing (brakes + dropper) for clean looks and snag-free rock gardens.

Modern Trail Specs: 1x-only, tapered head tube, and room for 2.4" tires.

Who Is the SDY20 For?

- XC Racers: Chase podiums with a frame born for efficiency.

- Climb Conquerors: Transform suffering into flow.

- Weight Weenies: The ultimate gram-shavers'canvas.



The Verdict:

The SDY20 isn't just a frame – it's Trifox's love letter to climbing. By ruthlessly cutting grams without sacrificing stiffness or control, it delivers a ride experience where the bike disappears beneath you, leaving only you, the trail, and the summit ahead.