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Body-SolidPro Select Biceps & Triceps MachineGCBT-STK

Dual-function, selectorized arm machine with 28 start positions, 7-position seat, and commercial-duty frame ideal for HOME GYM OWNERS and LIGHT COMMERCIAL

The Body-Solid GCBT-STK delivers two premium arm stations in one compact footprint. An intelligent cam design and a rotating V-bar handle let you switch seamlessly between biceps curls and triceps pressdowns by simply repositioning the lifting arm. The arm pads 30 angle supports precise joint alignment without elbow pressure, while the curl mechanism pivots and rotates to match forearm length and reduce wrist stress.

Dial in perfect mechanics with a 7-position gas-assist seat and 28 distinct start positions for full range of motion. Ultra-thick DuraFirm upholstery, 2″ 2″ and 2″ 4″ steel construction, and smooth, commercial-grade pulleys make this a durable, quiet addition to any serious training space.

Body-Solid GCBT-STK Biceps & Triceps Machine

Body-Solid GCBT-STK Highlights

• Two Stations in One: Quick-change cam for biceps curls and triceps pressdowns
• 28 Start Positions: Fine-tune ROM for comfort, mobility work, and progressive overload
• Ergonomic Support: 30 arm pad angle promotes natural biomechanics without elbow pressure
• Multi-Grip V-Bar: Overhand and underhand options; rotating design reduces wrist strain
• Comfort & Control: 7-position seat; ultra-thick DuraFirm pads
• Commercial Build: Combination 2″ 2″ and 2″ 4″ steel frame for long-term durability
• Clean Aesthetics: Contemporary black finish; some alternate photos may show prior gray finish
• Overall Footprint: 52″ L 36″ W 71″ H

Body-Solid GCBT-STK Key Features

Dual-Function Cam System

Pull the large pop-pin to lower the lifting arm for biceps curls, or raise and lock it for triceps pressdowns smooth, repeatable transitions in seconds.

Rotating Curl Mechanism

The curl assembly pivots and rotates to match forearm length, maintaining neutral wrist alignment and reducing unnecessary strain.

30 Arm Stabilization Pad

Angled pad aligns the shoulder-elbow-wrist path for efficient loading without digging into the elbow.

28 ROM Positions & 7-Position Seat

Set precise start/stop points and seat height to target strength through a full, comfortable range.

DuraFirm Upholstery

Ultra-thick, tear-resistant pads deliver consistent support for heavy and high-rep work.

Commercial-Grade Chassis

Combination 2″ 2″ and 2″ 4″ steel with a durable powder-coat finish built for home and light-commercial environments.

Body-Solid GCBT-STK Specifications

Variants / Model Options

GCBT-STK 210 lb Stack
GCBT-STK/3 310 lb Stack

Category

Bicep & Tricep Machine (Selectorized)

Resistance (Selectorized)

210 lb Stack: 20 10 lb plates plus 10 lb top plate & selector rod
310 lb Stack: 20 15 lb plates plus 10 lb top plate & selector rod

Finish & Upholstery

Black powder-coat finish; ultra-thick DuraFirm pads

Adjustments

28 start positions on lifting arm; 7-position seat height

Frame

Combined 2″ 2″ and 2″ 4″ steel construction

Assembled Dimensions

52″ L 36″ W 71″ H

Assembled Weight

395 lb

Package Dimensions

38.1″ L 33.6″ W 7.2″ H 5.33 ft

Intended Use

Home Gym & Light Commercial