what is the grill diameter? What is the mounting screw diameter? Please exact measurements.

We have a template with actual dimensions on our website under the product M0-65B > Support > Knowledge Based Articles > Cutout Template. Thanks for your interest in Rockford Fosgate!

Will these fit a 2016 harley street glide?

The M0-65B speakers are specifically designed for marine applications. Here is our product line specifically made for motorcycles: https://www.amazon.com/stores/page/0AAC0F68-6570-4F00-A6D7-3F9E13844B44?ingress=2&visitId=eb0d395d-827f-43aa-bb2b-35832e06968e&ref_=ast_bln Thanks for your interest in Rockford Fosgate!

Can these speakers be used as external speakers for an cb radio (marine grade)?

Yes I used them on a motorcycle with no problem.

Is the tweeter made into the cross sectoin or is it attached to the mid range speaker?

Yes, the tweeter is connected in the cross section and not to the cone. Thanks for your interest in Rockford Fosgate!

Rockford Fosgate M0-65B Marine Grade 6.5" Full Range Speakers - Black (Pair)

Rockford Fosgate M0-65B Marine Grade 6.5" Full Range Speakers - Black (Pair)

Product ID: 386191591

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Details

Audio output mode
Stereo
Brand
Rockford
Connectivity technology
wired
Frequency response
40 Hz
Speaker maximum output power
250 Watts

🌊Marine-grade weatherproofing

🎵6.5" full-range coaxial drivers

🔊65W RMS / 250W max power

Description

🌟 Elevate your outdoor soundscape with marine-grade power and clarity!

EFFORTLESS INSTALLATION - Compact 5.38” mounting hole & 2.52” depth fits seamlessly into your boat or off-road rig
POWERFUL SOUND ON THE GO - 65 Watts RMS delivers crystal-clear highs and deep lows, perfect for marine & off-road vibes
BUILT TO BRAVE THE ELEMENTS - Element Ready design resists water, salt, dust & UV for relentless outdoor performance
PRECISION AUDIO ENGINEERING - 6dB/Octave internal crossover with LCP balanced dome tweeter for rich, balanced sound
ROCKFORD FOSGATE RELIABILITY - Trusted brand quality backed by a full 2-year warranty—sound investment for your adventures

The Rockford Fosgate M0-65B are 6.5-inch marine-grade coaxial speakers engineered for rugged outdoor use. Featuring Element Ready weatherproofing, they resist water, salt, dust, and UV damage. With 65W RMS power and a 6dB/Octave internal crossover, these speakers deliver balanced, crystal-clear sound optimized for boats and off-road vehicles. Their compact design ensures easy installation, while Rockford Fosgate’s 2-year warranty guarantees durability and performance.

Specifications

ASIN	B07YLCFHC8
Additional Features	Corrosion Resistant, UV Resistant, Waterproof
Age Range Description	Adult
Antenna Location	for surround sound systems
Audio Driver Size	6.5 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Best Sellers Rank	#17,323 in Electronics ( See Top 100 in Electronics ) #27 in Coaxial Car Speakers
Brand	Rockford Fosgate
Built-In Media	Mounting Hardware, Pair of Black 6.5" Marine Speakers with Attached Grilles
Color	Black
Compatible Devices	Boat, Car
Compatible with Vehicle Type	Boat
Connectivity Protocol	Bluetooth
Connectivity Technology	wired
Control Method	Touch
Controller Type	Button
Customer Package Type	FFP
Customer Reviews	5.0 5.0 out of 5 stars (2)
Enclosure Material	ASA plastic
Frequency Response	40 Hz
Impedance	4 Ohms
Is Waterproof	False
Item Dimensions D x W x H	16.5D x 16.5W x 6.4H centimeters
Item Type Name	Rockford Fosgate M0-65B
Item Weight	2.16 Kilograms
MP3 player	No
Manufacturer	Rockford Fosgate
Model Name	M0-65B
Model Number	M0-65B
Mounting Type	Boat Mount
Number of Audio Channels	2.0
Number of Items	1
Power Source	Battery operated and electric cable
Speaker Maximum Output Power	250 Watts
Speaker Size	6.5 Inches
Speaker Type	Coaxial
Specific Uses For Product	Marine watercraft, Off-road vehicle audio systems
Subwoofer Connectivity Technology	Wired
Subwoofer Diameter	6.5 Inches
Tweeter Diameter	0.5 Inches
UPC	780687353681
Warranty Type	Full
Water Resistance Level	Waterproof
Wireless Technology	Bluetooth
Woofer Diameter	6.5 Inches

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