Dual 20mm Ball Socket Arm With Elbow| Die Cast Arm With Knob | 4.5" - 7"

5 reviews
Die Cast Arm with Knob

4.5"-7" Dual 20mm Ball Socket Die Cast Arm with Knob

  • All Aluminum Arm 
  • Dual omnidirectional locking ball joint and locking elbow joint for the perfect angle
  • Compatible with 20mm ball 
  • Built for durability 
Die Cast Arm with Knob



At Tackform, we are committed to providing you with top notch support.
If you have any questions or concerns about your order, please don't hesitate to reach out to our knowledgeable support technicians.

Our customer support team is available Monday through Friday 9:00 AM - 5:00 PM.


How long will it take to get my order?

  • USPS and Ground orders ship the same or next business day.
  • FedEx Express orders placed before 2 PM CST will ship same business day.
  • International orders, wholesale, and large bulk orders ay take an additional 1-2 business days for processing.

What shipping carriers do you use?

  • USPS
  • FedEx

Where do you ship from?

  • Tackform HQ (Addison Illinois 60101)

Can I return my product?

Of course, Tackform has a flexible 30 day return policy. You can find the full details by clicking here -> RETURNS


If we still haven't answered your questions, you can contact us below and we will get back to you as soon as possible.

"We're dedicated to providing you with the best possible shipping experience and we're here to help you in any way we can. Thank you for choosing Tackform. We look forward to serving you"

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Customer Reviews

Based on 5 reviews
Kathleen R. (Lakewood, US)
Escort Radar detector on Harley Handke batr

We were completely happy . My Ol’Man was able to attach his Escort radar detector on his Harley Street glue 2015 handle bar. We had been searching for a solution -as the suction cup option did not work on his bike . Thank you for piecing together the parts and placing in my cart!

Thomas R. (Alexandria, US)
Sturdy and easy to adjust

I am using Tackform components to hold my phone in my 1997 F150. The mounts are well made and stay put after adjustment. Great stuff!

Scott Z. (McHenry, US)
2022 CanAm Spyder Phone mount

Excellent. Mounted this on a OEM passenger armrest. Very stable and excellent view ! Also install the center handlebar phone mount with the same results. Now waiting for the drink holder to come out

Al (Leslie, US)
Quality products.

For me the 20mm ball and socket system by Tackform is the right size. Smaller than others and still very strong. These are good quality products.
I am currently using this with a device rail in a 2022 Bronco. Space is limited, so this is nice because minimal view is blocked.

Mark M. (Winston-Salem, US)
2022 Yamaha FJR 1300 Accessories

Tackform is the best. I love the sturdiness and quality of their parts. I have bought quite a few items from so far for my phone, GoPro and Garmin GPS. I use them on both my BMW K1600 and FJR 1300. I love the quality. And, their support...amazing. I haven't needed it yet for any problems, only for trying to figure out the best way to set my bike up.