Box Two Stem Spacer Kit
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
at
Roy's Cyclery
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.
Weight Efficiency
Extruded design keeps rotational mass minimal for performance-focused builds.
Adjustment Versatility
Comprehensive sizing options allow for precise cockpit height tuning.
Compatibility Range
Fits most standard steerer tubes, though lacks niche oversized compatibility.
Installation Simplicity
Straightforward design makes swapping or adjusting stack height effortless.
Finish Quality
CNC-machined edges provide a clean, professional aesthetic for any bike.
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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