Aluminum BB Spacer Pack 46mm ID For Mountain And Road Bikes, Precision Machined Bottom Bracket Spacers, Lightweight Durable Shims For A Smooth And Solid Install, Fits Wide Range Of BB Shells Like A Glove

Six-piece 46mm ID aluminum BB spacer pack for bikes
✔️ Six spacers: 2.5mm and 1.0mm, 46mm ID, fits many BB shells

These precision-machined aluminum spacers are designed to fine-tune chainline and bearing preload across a wide range of bottom bracket shells. They’re a handy upgrade for road, mountain, and gravel bikes during upgrades or maintenance, helping achieve a solid, smooth pedal feel.

✅ 46mm ID fits standard and press-fit BB shells
✅ Includes two 2.5mm spacers and four 1.0mm spacers for fine-tuning
✅ Lightweight aluminum construction resists corrosion while staying durable
✅ Compatible with disc and rim brake setups for broad use

💡 What is a bottom bracket spacer pack and why is it handy for bike setup?

Short answer: It helps dial in chainline and bearing preload across many BB systems, improving efficiency and stability.

• 46mm ID spacers fit standard and press-fit bottom brackets
• Includes mixed thickness spacers to tune chainline precisely
• Lightweight aluminum design keeps weight down with solid durability

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