NTHREEAUTO Motorcycle Bullet LED Turn Signals — Amber Waterproof CNC Aluminum, Pair with 33mm Fork Mounts

NTHREEAUTO bullet LED turn signals are compact, waterproof amber blinkers in a CNC aluminum housing that upgrade visibility and fit most 12V motorcycles.

These universal motorcycle blinkers combine a slim, machined-aluminum body with bright COB LED illumination and a simple three-wire connection, giving riders a durable, modern-looking indicator set that works with many popular bikes. The pair ships with fork-mount brackets sized for 33mm front forks and is designed to resist corrosion, impacts, and road moisture while producing a stronger amber signal than many stock lamps.

How do these blinkers improve visibility on the road?

The built-in COB LEDs deliver a concentrated, uniform amber beam that appears brighter and more consistent than some conventional bulbs. Better contrast and spread help other road users spot lane changes and turns sooner, particularly in daylight or wet conditions.

• COB LED array offers high luminous output and even light distribution
• Amber lens focuses color for quick recognition by drivers
• 3X brighter perceived output compared to many factory indicators

Will these indicators endure weather and vibration?

The housings are CNC-machined from aluminum and sealed to keep out water and grit, giving them a sturdy, long-lived construction for street or touring use. The metal shell and compact form factor reduce strain from vibration, and the finish resists corrosion from road salts and moisture.

• Aluminum body for impact and corrosion resistance
• Waterproof sealing keeps electronics dry in wet conditions
• Compact design reduces vibration stress on mounts and wiring

How easy is installation on common motorcycles?

Installation is straightforward: the kit includes a pair of fork-mount brackets sized for 33mm front forks and the blinkers use a three-wire hookup for negative, brighter amber, and standard amber functions. Riders familiar with basic wiring can mount and wire them in a short session; adapters or resistors may be needed for some LED-capable flasher modules.

• Includes fork-mount brackets for 33mm front forks
• Three-wire wiring: black = negative, yellow = brighter amber, red = amber
• Universal 12V compatibility with most bikes; some bikes may need LED-compatible flasher relay

Which motorcycles will these fit and what comes in the box?

These signals are built to be universal for 12V motorbikes with roughly 10 mm fairing holes and are often fitted on cruisers, sportbikes, bobbers, and custom builds. The package supplies one pair of aluminum LED blinkers plus a pair of front fork mount brackets, so you get everything needed for the front installation.

• Works with Harley Dyna, Road King, Softail, Electra Glide, Road Glide
• Compatible with Honda, Yamaha, Suzuki, Kawasaki, Ducati, BMW and other 12V bikes
• Box includes: 2 LED blinkers and 2 fork-mount brackets (for 33mm forks)

Who is this for: Riders who want a compact, more visible amber indicator with a machined-metal look—ideal for cruisers, custom bobbers, and riders replacing worn OEM signals. These blinkers suit mechanics and DIY enthusiasts comfortable with basic electrical wiring and those looking to add a durable, weatherproof upgrade that blends modern LED performance with a minimalist aesthetic.