Primary navigation starts here:

About Buy online Contact

How- to, specs and features navigation starts here:

Home About How to use Key features Warranty Buy online Contact Download Brochure
Flex Urethane Series

The Flex Urethane Series from PowerBlock are the fourth generation of PowerBlocks. The urethane coated weight plates offer the ultimate in smooth, quiet performance in addition to their ‘flex’ technology (patent pending) in both the weight plates and the selector pins making for the most durable PowerBlock yet. The coloured rails are powder coat painted and are on both sides of each block for easy identification of the different weights.

With the premium urethane coating, ‘flex’ technology and the additional weight increments than the Sport Series, this range is perfect for discerning home fitness enthusiast and carries a lifetime home warranty. For Personal Trainers, Sports Coaches and Therapists using PowerBlocks with their clients under fully supervised conditions; the Flex Urethane Series carries a 5-year light commercial warranty.

There are 4 key models within the new Flex Urethane Dumbbell Series:
U33 Dumbbells
U33 Dumbbells stage 1

The U33 Dumbbell Set comes in two separate stages. Stage 1 has a weight range of 0.5kg-9.5kg per hand. This stage 1 set replaces the need for 15 pairs of traditional fixed-weight dumbbells.

When the Stage 2 kit is added, the U33 set has the equivalent of 25 pairs of dumbbells with the total set of weight plates delivering 0.5kg-15kg per hand.

U33 Dumbbells stage 2

When the Stage 2 kit is added, the U33 set has the equivalent of 25 pairs of dumbbells with the total set of weight plates delivering 0.5kg-15kg per hand.

U33 Dumbbells adder weights

The versatility of the U33 Dumbbell Set is due to the adder weights within the core handle of each dumbbell. On their own the two adder weights each weigh 0.5kg and the empty handle weights 1.5kg and so even before any of the weight plates are used, you can train in 0.5kg, 1.5kg, 2kg and 2.5kg increments per hand. By either using one, two or none of the adder weights you can train in incremental steps as your training needs change.

U33 Dumbbells stage 1

Although the U33 Dumbbells can be used without the need for a stand, PowerBlock recommends purchasing the optional U33 stand shown here. It allows the user to lift and lower the dumbbells at the optimal height and angle for safe and effective training. Stands and dumbbells are purchased separately.

U50 Dumbbells
U50 Dumbbells

With no different stages the U50 Dumbbells Set has a total weight range of 1kg-22.5kg per hand, which is the equivalent of 20 pairs of traditional fixed-weight dumbbells.

U50 Addre Weight

The versatility of the U50 Dumbbell Set is due to the adder weights within the core handle of each dumbbell. On their own the two adder weights each weigh 1kg and so even before any of the weight plates are used, you can train in 1kg, 2.5kg, 3.5kg and 4.5kg increments per hand. By either using one, two or none of the adder weights you can train in incremental steps as your training needs change.

U50 Dumbbell on stand

Although the U50 Dumbbells can be used without the need for a stand, PowerBlock recommends purchasing the optional U50/U90 stand shown here. Suitable for either U50 or U90 dumbbell sets, this stand allows the user to lift and lower the dumbbells at the optimal height and angle for safe and effective training. Stands and dumbbells are purchased separately.

U90 Dumbbells
U90 Dumbbells Stage 1

The U90 Dumbbell Set comes in two separate stages. Stage 1 has a weight range of 1kg-22.5kg per hand. This stage 1 set replaces the need for 20 pairs of traditional fixed-weight dumbbells.

U90 stage 2

When the Stage 2 kit is added, the U90 set has the equivalent of 28 pairs of dumbbells with the total set of weight plates delivering 1kg-41kg per hand.

U90 handle and Adder weights

The versatility of the U90 Dumbbell Set is due to the adder weights within the core handle of each dumbbell. On their own the two adder weights each weigh 1kg and the empty handle weights 2.5kg and so even before any of the weight plates are used, you can train in 1kg, 2.5kg, 3.5kg and 4.5kg increments per hand. By either using one, two or none of the adder weights you can train in incremental steps as your training needs change.

U90 on stand

Although the U90 Dumbbells can be used without the need for a stand, PowerBlock recommends purchasing the optional U50/U90 stand shown here. Suitable for either U50 or U90 dumbbell sets, this stand allows the user to lift and lower the dumbbells at the optimal height and angle for safe and effective training. Stands and dumbbells are purchased separately.

U90 Commercial Dumbbells & Stand Set
U90 Commercial Set

The U90 Dumbbell is also available with a full commercial warranty when purchased as a complete set including the U90 Dumbbells up to Stage 2 and the 4-leg commercial stand shown here. This stand is not available to purchase separately – only available as part of the Flex U90 Commercial Set.