Feedback Sports Reflex 4Nm Extension Bit

The Feedback Sports Reflex 4Nm Extension Bit is a compact, preset torque-limiting extension that delivers a precise 4 Nm (+/- 4%) every time. Ideal for cyclists and mechanics, it attaches to any standard 1/4-inch drive bit and driver to safely tighten stem bolts, seatpost clamps, and other delicate components. On sale now for $14.00, down from $28.00—50% savings. Use code TOOLBOX15 for an extra 15% off, and enjoy free shipping on orders over $45.

Specifications

• Brand: Feedback Sports
• Model: Reflex 4Nm
• Product Type: Torque-Limiting Extension Bit
• Torque Setting: 4 Nm (preset)
• Accuracy: ±4%
• Drive Size: 1/4-inch (standard)
• Compatibility: Works with any standard 1/4" bits and drivers (ratchets, screwdrivers, torque wrenches)
• Durability: Rated for up to 3000 cycles

How It Works

The Reflex 4Nm extension bit uses a precision internal clutch mechanism. When torque reaches 4 Nm, it clicks and disengages, preventing over-tightening. Simply insert a standard bit (e.g., 4mm hex) and drive until the click—no guesswork.

Use Cases

• Mid-ride trailside torque checks
• Home workshop maintenance
• Ensuring consistent bolt torque on carbon components
• Quick safety checks before rides

Comparison

Unlike a full torque wrench (which can cost $100+ and requires calibration), the Reflex 4Nm is a budget-friendly, always-accurate alternative. It's lighter and more portable than a beam-type wrench. For multiple torque levels, pair with other Reflex preset bits (e.g., 5Nm, 6Nm).

Price Value

At $14.00, you get professional-grade torque accuracy for the price of a few inner tubes. The built-in durability (3000 cycles) means years of reliable use. Combine with the TOOLBOX15 coupon for extra savings and free shipping threshold.