T-REX OCTA UPGRADE PATH
Start where you are. Upgrade as your strength grows.
Begin with a 16KG, 24KG, 32KG or 36KG T-Rex Octa Adjustable Dumbbell and progressively build heavier using compatible Add-On Plates and interchangeable Studs, all within the same T-Rex Octa ecosystem.
For the upgrade paths below, configurations from 45KG onward use a pair of 36KG Dumbbells as the reference base.
Every target weight shown is per dumbbell
Every quantity shown is for a pair of dumbbells
1 Add-On Plate Set = 8 × 2KG Plates = 16KG total
Split equally across a pair, 1 Plate Set adds 8KG to each dumbbell
Long Studs 1.5KG × 4 are used for 45KG to 65KG
Extra Long Studs 2KG × 4 are used for 70KG to 100KG
Simple Rule: Fit the correct Stud Set for your target range, then every additional 16KG Plate Set adds 8KG to each dumbbell.
36KG to 65KG Upgrade Path
Starting Base: 2 × T-Rex Octa Adjustable Dumbbell 36KG
65KG Configuration Note
A pair of 65KG dumbbells requires 56KG of additional plates, while 4 Add-On Plate Sets provide 64KG.
This leaves 8KG of spare plates, as we currently do not offer a separate 8KG Add-On Plate Pack.
These plates are not wasted. They are fully compatible with the T-Rex Octa Loadable Kettlebell Handle 2.5KG and T-Rex Octa Loadable Barbell 10KG.
70KG to 100KG Heavy Upgrade Path
For heavier configurations, switch to the T-Rex Octa Extra Long Studs 2KG × 4.
Starting Base: 2 × T-Rex Octa Adjustable Dumbbell 36KG
100KG Configuration Note
For the 100KG configuration, the existing 1KG fractional plates are removed from the final setup.
The 2KG plates are loaded with the Extra Long Studs to achieve 100KG per dumbbell while maintaining adequate space for secure locking.
CHOOSING YOUR STUDS
If you plan to progress beyond 65KG in the future, we recommend purchasing both Stud Sets. This lets you use the appropriate stud as your loading requirements increase.
Targeting 45KG to 65KG?
Use the T-Rex Octa Long Studs 1.5KG × 4.
Targeting 70KG to 100KG?
Use the T-Rex Octa Extra Long Studs 2KG × 4.
One Plate Ecosystem. More Ways to Train.
Your Octa plates are also compatible with:
This means the plates you purchase to upgrade your dumbbells can also be used for Kettlebell and Barbell training.
Dumbbell. Kettlebell. Barbell. One upgradeable system.
Already Own a Lower-Weight T-Rex Octa?
No problem. Your existing Octa can still be upgraded. Choose the appropriate Long or Extra Long Studs for your target weight range, then add 16KG Add-On Plate Sets as required. Each Add-On Plate Set adds 8KG to each dumbbell when divided equally across the pair. So whether you started with a 16KG, 24KG, 32KG or 36KG Octa, you can calculate your upgrade path using the same system. Choose your target weight. Choose the right studs. Add the required plates.
Need help choosing your configuration?
T-REX OCTA UPGRADE PATH
Begin with a 16KG, 24KG, 32KG or 36KG T-Rex Octa Adjustable Dumbbell and progressively build heavier using compatible Add-On Plates and interchangeable Studs, all within the same T-Rex Octa ecosystem.
For the upgrade paths below, configurations from 45KG onward use a pair of 36KG Dumbbells as the reference base.
Every target weight shown is per dumbbell
1 Add-On Plate Set = 8 × 2KG Plates = 16KG total
Split equally across a pair, 1 Plate Set adds 8KG to each dumbbell
Long Studs 1.5KG × 4 are used for 45KG to 65KG
Every quantity shown is for a pair of dumbbells
Extra Long Studs 2KG × 4 are used for 70KG to 100KG
Simple Rule: Fit the correct Stud Set for your target range, then every additional 16KG Plate Set adds 8KG to each dumbbell.
36KG to 65KG Upgrade Path
Starting Base: 2 × T-Rex Octa Adjustable Dumbbell 36KG
65KG Configuration Note
A pair of 65KG dumbbells requires 56KG of additional plates, while 4 Add-On Plate Sets provide 64KG.
This leaves 8KG of spare plates, as we currently do not offer a separate 8KG Add-On Plate Pack.
These plates are not wasted. They are fully compatible with the T-Rex Octa Loadable Kettlebell Handle 2.5KG and T-Rex Octa Loadable Barbell 10KG.
70KG to 100KG Heavy Upgrade Path
For heavier configurations, switch to the T-Rex Octa Extra Long Studs 2KG × 4.
Starting Base: 2 × T-Rex Octa Adjustable Dumbbell 36KG
100KG Configuration Note
For the 100KG configuration, the existing 1KG fractional plates are removed from the final setup.
The 2KG plates are loaded with the Extra Long Studs to achieve 100KG per dumbbell while maintaining adequate space for secure locking.
CHOOSING YOUR STUDS
If you plan to progress beyond 65KG in the future, we recommend purchasing both Stud Sets. This lets you use the appropriate stud as your loading requirements increase.
Targeting 45KG to 65KG?
Use the T-Rex Octa Long Studs 1.5KG × 4.
Targeting 70KG to 100KG?
Use the T-Rex Octa Extra Long Studs 2KG × 4.
One Plate Ecosystem. More Ways to Train.
Your Octa plates are also compatible with:
This means the plates you purchase to upgrade your dumbbells can also be used for Kettlebell and Barbell training.
Dumbbell. Kettlebell. Barbell. One upgradeable system.
Already Own a Lower-Weight T-Rex Octa?
No problem. Your existing Octa can still be upgraded.
Choose the appropriate Long or Extra Long Studs for your target weight range, then add 16KG Add-On Plate Sets as required. Each Add-On Plate Set adds 8KG to each dumbbell when divided equally across the pair.
So whether you started with a 16KG, 24KG, 32KG or 36KG Octa, you can calculate your upgrade path using the same system. Choose your target weight. Choose the right studs. Add the required plates.
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Need help choosing your configuration?
