Smith Bike

Frequently Asked Questions

• What technologies set Smith Optics bike helmets apart?

  Smith blends Koroyd impact-absorbing cores, MIPS rotational protection, and traditional EPS foam in targeted constructions to balance weight, ventilation, and energy management. Their designs also emphasize eyewear integration, large venting and low-weight polycarbonate shells (the Engage MIPS is an example at about 13.10 oz) for all-day comfort and trail performance.
• How does Koroyd differ from traditional EPS foam in Smith helmets?

  Koroyd is a lattice of co-polymer tubes engineered to crush progressively and dissipate impact energy, while EPS is a dense foam that crushes more uniformly; Smith uses Koroyd full or zonal in models like the Forefront to add focused absorption. Many Smith helmets combine Koroyd with EPS and MIPS so you get complementary protection characteristics rather than a single solution.
• How should I size and fit a Smith helmet for the best protection and comfort?

  Try the helmet so it sits level across your forehead with the brow line protected and minimal front‑to‑back or side‑to‑side movement; Smith typically offers S/M/L ranges (and numeric cm ranges) and a rear ratcheting adjustment wheel for micro‑fit. Pay attention to head shape—if one model feels tight in the temples or loose at the back, try another Smith shape or size—and adjust straps so the buckle rests snug under your jaw without pinching.
• How does the Engage MIPS compare to the Forefront and Overtake?

  The Engage MIPS emphasizes low weight (around 13.10 oz), abundant ventilation (21+ vents) and long‑ride comfort for trail/XC with MIPS rotational protection. The Forefront swaps in Koroyd and more rear coverage for greater impact absorption on aggressive trail and enduro rides, while the Overtake prioritizes aero performance and low drag for road and gravel racing, offering different coverage and ventilation tradeoffs.