Pro-Line 50mm Big Bore Scaler Shocks 4pc Suits SCX24 & AX24 PRO639100

The Pro-Line 50mm Big Bore Scaler Shocks are a performance suspension upgrade for Axial SCX24 and AX24 1/24 scale rock crawlers. Featuring CNC-machined aluminium components, large 5mm bore shock bodies and polished steel shafts, these oil-filled shocks provide increased damping capacity and smooth suspension control while maintaining a realistic scale appearance.

The 50mm length is a direct replacement for the AX24 and can be used as an extended-travel option on the SCX24. Each shock uses a double O-ring shaft seal for smooth, low-friction operation and improved oil retention. The set arrives pre-assembled and requires only silicone shock oil before installation, with Pro-Line recommending 20wt as a starting point.

Features

• 50mm Big Bore Design: Long-travel suspension upgrade for compatible AX24 and SCX24 crawlers
• 5mm Bore Shock Bodies: Increased oil volume provides more consistent damping performance
• CNC-Machined Aluminium Construction: Aluminium shock caps, threaded bodies and bottom caps provide durability and a premium finish
• Threaded Shock Bodies: Allow spring preload to be adjusted for vehicle weight and suspension setup
• Double O-Ring Shaft Seal: Designed to minimise leakage while providing smooth, low-friction shock action
• Polished Steel Shock Shafts: Provide smooth suspension movement and improved durability
• Pre-Assembled: Shocks arrive assembled and only require shock oil before use
• 20wt Oil Recommended: Pro-Line recommends 20wt silicone shock oil as a starting setup
• Two Spring Rates Included: Standard springs are installed with an additional set of stiffer springs for heavier vehicles
• AX24 Direct Replacement: 50mm length is designed as a direct replacement suspension option for the AX24
• SCX24 Extended-Travel Option: Can be fitted to compatible SCX24 models when additional shock length and travel are desired
• Vehicle-Specific Hardware: Includes separate upper shock balls and mounting components for AX24 and SCX24 installations

Specifications

• Brand: Pro-Line Racing
• Manufacturer Part Number: PRO639100
• UPC: 675118182414
• Product Type: Big Bore Scaler Shock Set
• Scale: 1/24
• Vehicle Type: Rock Crawler
• Compatibility: Axial AX24 / SCX24
• Extended Length: 50mm Eye-to-Eye
• Collapsed Length: 35.25mm Eye-to-Eye
• Shock Stroke: 14.75mm
• Spring Length: 36mm
• Shock Bore: 5mm
• Shock Body: CNC-Machined Aluminium
• Shock Caps: CNC-Machined Aluminium
• Bottom Caps: CNC-Machined Aluminium
• Shock Shaft: Polished Steel
• Shaft Seal: Double O-Ring
• Recommended Shock Oil: 20wt Silicone Oil
• Quantity: 4 Shocks

Includes

• 4 × Pro-Line 50mm Big Bore Scaler Shocks
• 4 × AX24 Upper Shock Balls
• 4 × SCX24 Upper Shock Balls
• 8 × SCX24 Upper Shock Ball O-Rings
• 4 × Optional Stiff Springs
• 4 × M1.4 x 14mm Upper SCX24 Screws
• 4 × M1.4 x 10mm Lower Screws

Needed to Complete

• Silicone Shock Oil – 20wt Recommended
• Basic Tools for Installation

FAQ

Do the Pro-Line PRO639100 shocks fit both the SCX24 and AX24? Yes. Pro-Line supplies mounting hardware for both platforms. The 50mm shock is a direct replacement on the AX24 and an extended-travel option for the SCX24.

Are these shocks supplied with oil? No. The shocks arrive pre-assembled but require silicone shock oil before use. Pro-Line recommends 20wt oil as a starting point.

What are the dimensions of these shocks? Each shock measures 50mm eye-to-eye when extended and 35.25mm when collapsed, providing 14.75mm of shock stroke.

Do the shocks include different springs? Yes. Standard springs are installed for stock or near-stock vehicle setups, while four optional stiffer springs are included for heavier bodies or suspension tuning.

Are 50mm shocks suitable for every SCX24 setup? Not necessarily. The 50mm shocks provide substantially longer suspension geometry than stock-length options on an SCX24. Depending on mounting position and vehicle setup, longer shocks can increase ride height and articulation but may also raise the centre of gravity. Check your desired suspension geometry before installation.

Important Notes

• Shock oil is not included
• Pro-Line recommends 20wt silicone shock oil as a starting setup
• 50mm length is a direct replacement on the AX24 and an extended-travel option on the SCX24
• Extended length is 50mm and collapsed length is 35.25mm, measured eye-to-eye
• Optional stiff springs are included for heavier bodies and suspension tuning
• Check tyre, body and drivetrain clearance through the complete suspension travel after installation
• Extended shocks can alter ride height, articulation and centre of gravity on SCX24 builds