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Calf extension G7-S77

MATRIX / Ultra

Calf extension

G7-S77

Ultra Calf Extension

A selectorized weight stack station for leg and glute training.

  • Contoured seat for support during exercise.
  • Dedicated personal storage.
Static dimensions
169 × 120 × 135 cm
In-use dimensions
169 × 120 × 150 cm
Weight stack
180 kg

PRODUCT DATA / G7-S77

All the details in one place.

Manufacturer specifications for the displayed version. Static and in-use dimensions are listed separately where published. Clearance, electrical and anchoring requirements will be verified during installation planning.

Performance & training system

Maximum training weight
186.8 kg / 415 lbs
Consistent 53-inch weight stack height
Yes
Weight stack guarding
Full front and rear guards
Cable system
Internally lubricated cables & fittings
Weight increments
9 kg / 20 lbs
Total stack weight
180 kg / 400 lbs
Incremental weight system
2.3, 4.5, 6.8 kg / 5, 10, 15 lbs

Dimensions, weight & installation

In-use dimensions
169 x 120 x 150 cm / 66.5” x 47.2” x 59”
Machine weight
291 kg / 642 lbs
Static dimensions
169 x 120 x 135 cm / 66.5” x 47.2” x 53”

Construction, comfort & adjustment

Rear placards
Color-coded machine identification, exercise specific stretching
Contoured seat
Yes
Personal storage
Two tactile storage mats, personal device cradle and towel hook
Front placards
Muscle call outs, exercise specific stretching, start & finish exercise illustrations, proper machine adjustments, color-coded machine identification
Machine anchoring
Independent machine anchoring brackets
Frame finish
Manufacturer’s proprietary two-coat powder process
Integrated leveling system
Yes, top-down leveler
Placard color coding
Blue (lower body)
User adjustment range
8 User start options
Color-coded pivots and adjustment points
Yes
Available frame colors
Iced Silver, Matte Black, Gloss Black, Lace White, Polarized Titanium

Display, data & connectivity

Equipment usage tracking
Service mode tracks total reps and hours of use
Rep counter
Electronic counter displaying reps, exercise time and rest time
Rep counter battery life
Approximately 3 years
Rep counter power supply
Two AA batteries

CONFIGURE YOUR MATRIX

Configuration is part of the choice.

The model, display, finish and weight stack depend on the available options. The selection tool lists Eurotec configurations and lets you add the required version to your equipment list.

Calf extension Base Heavy

Base Heavy

G7-S77BH

Official Matrix Base Trim image, shared by the B and BH models. The weight stack and specifications shown here refer to BH.

Version specifications

Performance & training system

Maximum training weight (G7-S77BH)
180 kg / 400 lbs.
Total Stack Weight (G7-S77BH)
180 kg / 400 lbs.
Stack Height
135 cm / 53”
Weight increments
9 kg / 20 lbs.
Incremental weight system
No
Weight stack guarding
Full front and rear guards
Cable system
Internally lubricated cables and fittings

Dimensions, weight & installation

Maximum user weight
136 kg / 300 lbs.
Machine weight (G7-S77BH)
285 kg / 628 lbs.
In-use dimensions
169 x 120 x 150 cm / 66.5” x 47.2” x 59”
Static dimensions
169 x 120 x 135 cm / 66.5” x 47.2” x 53”

Construction, comfort & adjustment

Front placards
Muscle call outs, exercise-specific stretching, start and finish exercise illustrations, proper machine adjustments, color-coded machine identification
Rear placards
Color-coded machine identification, exercise-specific stretching
Placard color coding
Blue (lower body)
Personal storage
Two tactile storage mats and one personal device cradle
Contoured seat
Yes
User adjustment range
8 user start options
Integrated leveling system
Yes, top-down leveler
Machine anchoring
Independent machine anchoring brackets
Frame finish
Manufacturer’s proprietary two-coat powder process
Available frame colors
Iced Silver, Matte Black, Graphite Grey, Gloss Black, Lace White, Polarized Titanium
Color-coded pivots and adjustment points
Yes

Display, data & connectivity

Rep counter
No
Select this version
Calf extension ONYX

ONYX

G7-S77-OE

Manufacturer image of the ONYX version in Matte Black.

Version specifications

Performance & training system

Maximum training weight
186.8 kg / 415 lbs
Consistent 53-inch weight stack height
Yes
Weight stack guarding
Full front and rear guards
Cable system
Internally lubricated cables & fittings
Weight increments
9 kg / 20 lbs
Total stack weight
180 kg / 400 lbs
Incremental weight system
2.3, 4.5, 6.8 kg / 5, 10, 15 lbs

Dimensions, weight & installation

In-use dimensions
169 x 120 x 150 cm / 66.5” x 47.2” x 59”
Machine weight
291 kg / 642 lbs
Static dimensions
169 x 120 x 135 cm / 66.5” x 47.2” x 53”

Construction, comfort & adjustment

Rear placards
Color-coded machine identification, exercise specific stretching
Contoured seat
Yes
Personal storage
Two tactile storage mats, personal device cradle and towel hook
Front placards
Muscle call outs, exercise specific stretching, start & finish exercise illustrations, proper machine adjustments, color-coded machine identification
Machine anchoring
Independent machine anchoring brackets
Frame finish
Manufacturer’s proprietary two-coat powder process
Integrated leveling system
Yes, top-down leveler
Placard color coding
Blue (lower body)
User adjustment range
8 User start options
Color-coded pivots and adjustment points
Yes
Available frame colors
Matte Black

Display, data & connectivity

Equipment usage tracking
Service mode tracks total reps and hours of use
Rep counter
Electronic counter displaying reps, exercise time and rest time
Rep counter battery life
Approximately 3 years
Rep counter power supply
Two AA batteries
Select this version

DOCUMENTS / STAY IN THE DETAILS

Product dossier & manufacturer documents.

PRODUCT DOSSIER

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MATRIX 2026 / OFFICIAL PDF

Strength catalog 2026

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Sources & manufacturer website

Specifications are based on data from MATRIX in this site’s catalog. Manufacturer specifications may change; final configuration, availability, warranty and delivery will be defined in the Eurotec quotation.

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