The TT86 uses a 3D-printed lining engineered for up to 82% more breathability compared to average traditional linings, which is a significant advantage when riding in India's heat and humidity. This helps reduce the sweaty, overheated feeling that aero helmets are sometimes known for.

The TT86 is built to stay reasonably light for an aero-shaped shell and uses the F1 four-dimensional regulator to fine-tune the fit precisely around the head, helping reduce pressure points on long rides. This adjustment system is designed for a stable, secure feel even during hard efforts or fast descents.

Measure your head circumference just above the eyebrows and compare it to Sunrimoon's standard adult size chart to choose the right size for the TT86. The four-dimensional regulator then lets you fine-tune the fit further for a race-ready feel.

Yes, the TT86 is one of Sunrimoon's dedicated time-trial and aero helmets, featuring a magnetic photochromic visor with over 180 degrees of visual angle for unobstructed sightlines at speed. It suits riders focused on time-trials, triathlons, or fast solo efforts rather than casual, relaxed riding.

The TT86's visor automatically tints based on light conditions and offers a wide, over-180-degree field of view, which is useful for staying alert to traffic and road conditions at speed. Its magnetic mounting makes it quick to swap or remove for cleaning or when riding in low light.

Wipe the shell and visor with a soft, damp cloth, avoiding harsh chemicals on the photochromic coating, and periodically remove the 3D-printed lining for a gentle clean to keep it fresh, especially in India's humid conditions. Let the helmet air-dry fully before storing it.

Yes, every TT86 sold on DoGoodCo is a genuine, officially sourced Sunrimoon helmet, backed by standard manufacturer warranty against manufacturing defects. Orders are typically dispatched within 3 working days, with total delivery time depending on your pin code, and DoGoodCo is a prepaid-only store without cash on delivery.