Spiral Strength Dually

Name: Spiral Strength Dually
Brand: Dynepic Sports
Rating: 4.43 (14 reviews)

The Dynepic Sports Spiral Strength Dually is a dynamic, dual-grip tricep rope that couples two Spiral Strength grips through a free-spinning aircraft-grade aluminum pulley, letting each handle rotate and move independently instead of moving as one rigid unit. That coupling lets lifters alternate contractions side to side – pressing with one arm while the other holds an isometric hold – for tricep pushdowns, face pulls, and hammer-curl style movements, on top of standard two-handed use. Grips are US-made EPDM rubber shaped thick-to-thin so the hand can find a comfortable taper, paired with a US-made double-braided polyester rope and a stainless steel quicklink. It’s rated for 300 lbs total (150 lbs per grip), assembled in the USA, and patented; it ships in Classic Red or a limited-edition Black.

Colors	Classic Red, Limited Edition Black
Pulley	aircraft-grade aluminum
Made in	USA (assembled)
Hardware	stainless steel quicklink
Patented	yes
Manufacturer	Dynepic Sports
Grip material	US-made EPDM rubber
Rope material	US-made double braided polyester, minimal stretch
Weight rating	300 lbs (140 kg) total, 150 lbs per grip

What is a Cable Attachment?

What cable attachments are

Cable attachments are the handles and bars that clip to a cable machine, functional trainer, or lat/row station to change the exercise — lat bars, triceps ropes, single-D handles, row/close-grip handles, ankle straps, and more. A small set of them turns one cable stack into dozens of movements.

What to look for

A rotating swivel or ball-bearing joint keeps the cable from twisting and lets the handle track your arm; comfortable, durable grips (knurled metal, rubber, or coated nylon) survive heavy use; and a standard carabiner or snap fits most machines. Match the attachment to the exercises you actually train rather than buying a giant kit you won’t use.

How it compares

	Spiral Strength Dually	2 to 1 Bar Connector	Fat Bar - Olympic Curl Bar Cable Attachment	Pro Series 48" Lat Bar
GymRadar rating	4.43/5	4.44/5	4.44/5	4.44/5
Price		$59.99		$89.99
Colors	Classic Red, Limited Edition Black
Pulley	aircraft-grade aluminum
Made in	USA (assembled)
Hardware	stainless steel quicklink
Patented	yes
Manufacturer	Dynepic Sports	REP Fitness		REP Fitness
Grip material	US-made EPDM rubber
Rope material	US-made double braided polyester, minimal stretch
Weight rating	300 lbs (140 kg) total, 150 lbs per grip

4.4/5 · 14 GymRadar reviews

Reviews by source

Expert	4.43/5	14 reviews
Youtube	4.2/5	2 reviews

The Dynepic Sports Spiral Strength Dually’s standout dimension is functionality: its free-spinning coupled-grip design lets lifters alternate isometric holds side to side on pushdowns, face pulls, and curls, and both GymRadar reviewers and independent YouTube unboxings single out the pulley action as smooth and the design as genuinely different from a standard tricep rope. Versatility follows close behind – reviewers use it for triceps, hammer curls, and face pulls alike – though one GymRadar reviewer never found a use for it beyond two-handed pressing. Build quality looks solid on the evidence available (EPDM grips, aluminum pulley, stainless hardware), backed by a 4.64/5 GymRadar build-quality sub-score, but durability is the weakest dimension: no independent editorial or long-term teardown exists for this niche accessory, only first-impression reviews. Value is mixed – most reviewers call it worth the price, but at least one found it overpriced for a single-purpose attachment, and a cheaper Amazon version of the same idea exists.

+Functionality: free-spinning coupled grips let lifters alternate isometric holds side to side on pushdowns and face pulls, described as smooth and 'very efficient' by multiple reviewers (GymRadar, YouTube: Strict Vision Athletics)
+Versatility: reviewers use it for tricep pushdowns, hammer curls, and face pulls beyond the standard two-handed rope use case (GymRadar, YouTube: Strict Vision Athletics)
+Build quality: GymRadar's build-quality sub-score is 4.64/5, the highest of its three sub-dimensions (GymRadar)
+Build quality: EPDM rubber grips, aircraft-grade aluminum pulley, and a stainless steel quicklink read as well-constructed to reviewers who called it 'well constructed' with 'comfortable' conical handles (GymRadar)
+Functionality: 300 lb total weight rating (150 lb per grip) covers heavy pushdown and pulldown loads (manufacturer)

−Durability: no independent editorial review or long-term teardown was found for this SKU -- only first-impression unboxing/demo videos and short-form GymRadar reviews (web research aggregate)
−Value: at least one GymRadar reviewer called it 'not worth the price,' and noted a cheaper Amazon version of the same concept exists (GymRadar)
−Versatility: one reviewer never found use for it beyond standard two-handed pressing, questioning the appeal of the coupled-grip design (GymRadar)
−Functionality: the two independent YouTube videos found are a short demo and unboxing rather than an extended-use review, so long-term functional feedback is limited (YouTube: Strict Vision Athletics)