Add real protection without spoiling the classic lines. The Royal Enfield 1990600 Black Airfly Engine Guard is a genuine GMA/OEM guard for Bullet 350/500 and Electra 350 UCE models. Built from 32 mm mild-steel tubing with a dual-coat corrosion-resistant finish, it’s engineered to take the knocks from slow-speed tips and gravel while preserving service access and lean angles.

The Airfly pattern uses clean, flowing tubes with subtle RE branding on the uprights, giving a purposeful factory look. It’s a bolt-on kit designed around the OE frame points for a precise fit—no drilling or welding. Royal Enfield’s official accessory catalogue lists 1990600 specifically under “Bullet & Electra” protection accessories; Classic UCE uses a different Airfly part number, so we keep fitment strictly accurate to reduce returns. 

If you tour, commute, or ride broken roads, this is the safest way to protect crankcase covers and lower engine hardware—using parts that match Royal Enfield tolerances and warranty expectations. Some RE pages also mention a polished stainless finish as an alternative aesthetic (separate part). 

Key Features

• Genuine Royal Enfield accessory — Part No. 1990600 (Airfly pattern, black). 

• Heavy-duty 32 mm mild-steel tube, dual-coated for corrosion resistance.

• OEM geometry with RE branding; clean, factory look.

• Direct bolt-on to stock mounting points; no mods required. 

• Designed for real-world protection with maintained airflow and service access. 

Compatibility Table 

Explicit exclusions to avoid returns: Classic UCE uses a different Airfly part (not 1990600). Do not list for Classic/J-Series/Thunderbird unless separately verified. 

Variants

• Finish in this listing: Black (1990600).

• A polished stainless finish is referenced on RE pages (sold as a different part). 

FAQs

Q1. Will it fit my Classic 350/500 UCE?
No. RE’s catalogue maps 1990600 to Bullet & Electra only. Classic Airfly uses a different part number. 

Q2. What tube size and coating does it use?
32 mm mild-steel with dual-coat corrosion protection. 

Q3. Is installation DIY-friendly?
Yes—designed as a bolt-on kit to OE points; just follow standard torque/Loctite practices. 

Q4. Does it affect ground clearance?
The compact Airfly pattern hugs the frame; clearances remain close to stock. (RE description emphasizes protection with precise fit.) 

Q5. Stainless option available?
RE mentions a polished stainless alternative (different part, sold separately)