Box Two Stem Spacer Kit
Box

Box Two Stem Spacer Kit

4.4

Best lightweight spacer kit for fine-tuning your bike's handlebar height.

A reliable set of spacers for dialing in your cockpit height. These lightweight aluminum components offer the precision needed for a perfect fit on standard steerer tubes.

$9.99

In stock

at

The Bike Line

Who it's for

  • Riders seeking precise ergonomic adjustments for their cockpit
  • Weight-conscious cyclists prioritizing durable, lightweight components
  • Aesthetic-focused builders wanting a clean, professional bike finish

Who should skip it

  • Budget-minded cyclists preferring value over brand-name components
  • Casual riders who won't notice performance differences
  • Novice mechanics uncomfortable with steerer tube modifications

Performance breakdown

Material Durability

6061-T6 aluminum construction ensures long-term structural integrity under pressure.

Excellent

Weight Efficiency

Extruded design keeps rotational mass minimal for performance-focused builds.

Excellent

Adjustment Versatility

Comprehensive sizing options allow for precise cockpit height tuning.

Excellent

Compatibility Range

Fits most standard steerer tubes, though lacks niche oversized compatibility.

Excellent

Installation Simplicity

Straightforward design makes swapping or adjusting stack height effortless.

Excellent

Finish Quality

CNC-machined edges provide a clean, professional aesthetic for any bike.

Excellent

Key Specs

Inner (Ø) 1" or 1-1/8"

Height 1mm, 3mm, 5mm, 10mm (listed twice)

Material 6061-T6 Aluminum (listed twice)

Weight 6.7 grams / 0.24 ounces (for smaller spacers), 8.2 grams / 0.29 ounces (for larger spacers)

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Box Two Stem Spacer Kit

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