SKYRC Diff Analyzer - Precision Tool for RC Car Diff Tuning

Get repeatable, numeric readings of your gear differential’s hardness so you can build, log, and exactly replicate winning setups instead of trusting "feel". That means fewer guess-and-check rebuilds and more consistent left/right and front/rear balance - helping you match handling to track grip and conditions across race weekends.

Just plug in any 5 V Micro-USB source (power bank, charger, laptop), attach the diff with the included adapter, press the button, and in 3–5 seconds you have a hard number you can record and compare. For maximum consistency, test at the same temperature - silicone oil viscosity changes with heat, and serious racers know that matters.

Precision-machined from a single block of anodized aluminum, the Diff Analyzer is only 54×28×24.8mm and 59g - small enough to toss in any pit bag or a pocket, tough enough for daily track use. Out of the box it works with all 1/10-scale gear diffs via the included 7mm hex (wheel-nut) and dogbone/pin/outdrive adapters. Optional adapters add 1/8-scale buggies/truggies and Mini-Z support, letting you standardize readings across your entire fleet.

Key specs

• Model: SK-500026-03
• Power: 5 V Micro-USB (any power bank or USB port)
• Test Time: ~3–5 seconds per diff
• Display: Clear white LED numeric value
• Compatibility: All 1/10-scale gear diffs (adapters included); 1/8-scale & Mini-Z with optional adapters
• Dimensions / Weight: 54 × 28 × 24.8 mm / 59 g
• Construction: CNC-machined anodized aluminum
• Included: 7 mm hex adapter + dogbone/pin/outdrive adapter for 1/10-scale

Data-driven diff tuning. Replicate fast setups. Win more mains.