TOPVOP auto Folding Sag Scale for Dirt Bikes — Blue anodized, 6061-T6 aluminium, slide-to-zero direct-read tool

TOPVOP auto Folding Sag Scale is a folding, aluminum suspension sag measurement tool that gives direct-read sag values for mini, full-size motocross and dirt bikes.

Set up your suspension quickly and accurately with a purpose-built sag scale engineered for off-road motorcycles. This compact tool combines a cone axle locator, a slide-to-zero direct reading scale, and durable 6061-T6 aluminum construction so you can measure static and rider sag without mental arithmetic. It extends for full reach yet folds down for toolbox storage — ideal for track days, garages, or on-the-trail adjustments.

How does the TOPVOP auto sag scale ensure accurate sag readings?

Accuracy starts with the tapered cone axle locator that seats into hollow or open axles up to 20 mm and keeps the tool aligned with the swingarm axis. The slide-to-zero feature lets you set a custom zero reference and read sag directly, eliminating subtraction errors. Laser-engraved 0–120 mm markings at 1 mm increments provide repeatable, visible measurements even in bright or low light.

• Tapered cone fits axle openings up to 20 mm for steady contact and alignment.
• Slide-to-zero knob secures a reference point for direct-read measurements.
• Laser-engraved millimeter scale (0–120 mm) for clear, repeatable readings.
• 6061-T6 aluminum reduces flex for consistent measurement under load.

What makes the folding design practical for riders and mechanics?

The swing-out, two-piece construction extends to 28-3/8 inches for measuring full travel and collapses to 15-3/4 inches for compact storage. Lightweight anodized aluminum keeps the weight low while resisting corrosion from dirt and moisture. Folding action and a single tightening knob mean you can deploy and stow the tool quickly between sessions at the track or during trail maintenance.

• Extends to 28-3/8 inches for long-reach measurements on full-size bikes.
• Folds to 15-3/4 inches to fit standard toolboxes and backpacks.
• Blue anodized finish for corrosion resistance and visual durability.
• Single knob locks the slide for stable readings and easy storage.

Which bike fits and how do I check axle compatibility?

The TOPVOP auto sag scale is designed for motocross, dirt bikes, and many mini and full-size off-road models. The cone-shaped axle locating pin accommodates hollow axles up to 20 mm; measure your axle opening before ordering to ensure fit. This tool replaces common sag gauges and is a practical alternative to model-specific probes.

• Compatible with most MX, motocross, dirt bikes, and mini bikes.
• Fits hollow axles with openings up to 20 mm — measure axle prior to purchase.
• Works on common swingarm geometries used in motocross setups.
• Can replace older part numbers like 08-0613 for many users.

How do I use the scale at the track or in the garage?

Mount the tapered cone into the axle opening, extend the arm to the shock reference point, and slide the scale until the zero aligns with your chosen chassis mark. Tighten the knob to lock the zero, compress the suspension to the required preload position or ride weight, and read the sag directly from the engraved scale. No math required — just confirm settings and recheck after a short ride to verify adjustments.

• Seat cone in axle, align scale to reference mark, and tighten the knob.
• Set rider weight or preload, then read sag directly from the scale.
• Re-check after a brief ride to confirm final suspension setup.
• Ideal for quick track-side or detailed garage tuning sessions.

Who is this for: The TOPVOP auto Folding Sag Scale suits motocross riders, dirt-bike mechanics, and serious hobbyists who want accurate, repeatable suspension sag without complex tools. If you attend track days, race, or tune multiple bikes, this compact, rugged gauge saves time and reduces measurement errors. Choose this tool if you need a portable, direct-reading sag scale that fits common axle types and stows easily in your tool kit.