Unilock Series II Solid Head Urethane Dumbbells 55-100 lb. -- GP (DBS2-SET-2)

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Your Price: $5,219.00


Optional Spline Technology:

10 pairs - 5lb increments

Solid Head Urethane Dumbbell Series II Unilock is the latest offering from GP Industries. This new Dumbbell incorporates all the technology found in GP’s Series I Dumbbell at more affordable pricing. GP uses US made High Strength Steel handles, German Urethane and as in their Series I Dumbbells all components are part replaceable if ever necessary. Can work in any environment.


  • Solid Steel Core.
  • CPU Molded and Bonded.
  • 1045 Steel Chrome Plated Handles and bars 80,000 + PSI Tensile Strength
  • Handle diameter: Straight 32mm

  Introducing the new "Uni-Lock" dumbbell from GP Industries, Inc. This new innovative design features a one-piece (no bolt) handle that is superior in strength to current bolted handle designs. Instead of a bolt, the ends of the handle are threaded providing one piece construction that is twice the diameter of conventional bolting methods. We design and manufacture these handles using only American made "Stress Proof" steel to enhance strength and durability (a GP Industries, Inc. exclusive). We assemble the plates to the handle with a proprietary locking nut that will not back off under the most severe shock loads, but can be adjusted forward with ease to accommodate for plate surface wear, handle deformation or any other factors that cause loosening in conventional bolt together dumbbells without diminishing its holding power. This unique feature ensures that your dumbbells will remain safe and secure.

Uni-Lock dumbbells are impervious to the shock loads generated from constant dropping and banging together - the primary cause of loosening. Conventional dumbbells utilize locking adhesives on the bolts, which do not hold under continuous shock loads. Adhesives cannot withstand repeated shock, which eventually breaks the seal and causes loosening. These methods only work if their seal remain intact. They cannot be tightened or adjusted without breaking the seal, which greatly reduces the holding power. The Uni-Lock dumbbell is not constructed with any locking adhesives and can be taken apart and reassembled as often as required.

Uni-Lock is available in either cast iron, urethane coated plates or our new solid urethane coated heads. The new Uni-Lock design from GP Industries, Inc. provides the durability of welded dumbbells with the balance, feel and versatility of bolted dumbbells.

Available with straight handle only

Option: GP Industries Series II Dumbbells offer Spline Technology UPGRADE. The patented Splined handle is the same as used in GP Industries Series I dumbbells. Dumbbells are pressed on to the Splined handled and locked together to prevent the dumbbell from ever spinning. The self-cutting splines on the handle groove the inside of the dumbbell head upon installation creating a male-female spline scenario similar to the way a car steering wheel is attached - making head rotation impossible even without the locking system attached. The optional Spline Technology is virtually the ONLY dumbbell fastening system ever created that can claim the handle to head connection actually gets stronger the more it’s used, or even dropped!

Spline Technology
Detail of OPTIONAL Splined Handle Upgrade


Custom Logo's:

*25 pair minimum
  • One color - $325.00 Art Charge + $13.00 per pair
  • Two color - $455.00 Art Charge + $13.00 per pair
  • Three color - $553.00 Art Charge + $13.00 per pair
  • Four color - $715.00 Art Charge + $13.00 per pair


Some Examples of other custom logos:


Shipping Included
Shipping cost included within the lower 48 states only

Ships via one of our various freight carriers on a wooden pallet. This delivery is considered a curbside delivery only and will be delivered to a location at your address that is acceptable for a tractor trailer at the drivers discretion. Customers are required to be home at the time of delivery to sign the delivery receipt. On most deliveries, customers will receive a 24-hour notification call and lift gate service.
Item Number: DBS2-SET-2 ProdID_19317
Product Name: Unilock Series II Solid Head Urethane Dumbbells 55-100 lb. -- GP (DBS2-SET-2)
Manufacturer: GP
Manufacturer Part No: DBS2-SET-2

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