Wheels Manufacturing Spacer For 30mm Spindle
Spacer For 30mm Spindle
Wheels Manufacturing

Wheels Manufacturing Spacer For 30mm Spindle

In Stock

Precision 0.5mm Delrin shims (bag of 10) for 30mm spindle cranks. Use to dial chainline, remove side-to-side play and achieve correct bearing preload in BB30/PF30/BB86/92 systems.

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Wheels Manufacturing, 30mm BB spindle shim, 0.5mm, bag of 10 — In Stock
Wheels Manufacturing, 30mm BB spindle shim, 1.0mm, bag of 10 — In Stock

Product Details

Overview & Technology

Wheels Manufacturing 30mm Spindle Spacer (0.5mm) is a precision shim designed for fine crankset adjustments in BB30-style bottom bracket systems. Each spacer is machined from engineering-grade Delrin for low friction, excellent wear resistance and consistent thickness so every shim performs the same under load. At a true 0.5mm thickness with a tight 30.00mm inner diameter tolerance, these shims let you correct chainline, compensate for manufacturing tolerances or take up slack without introducing metal-to-metal contact. Because Delrin is dimensionally stable and smooth, the spacer slides easily onto 30mm spindles and won't gall or damage finishes on crank spindles or bearings.

Key Features

Small parts — big impact. These spacers are built to deliver predictable, workshop-grade adjustments: • Engineering-grade Delrin construction for low friction and long life. • Precision 0.5mm thickness — ideal for fine-tuning chainline and eliminating play. • 30mm inner diameter specifically sized for BB30-style spindles and crank axles. • Bag of 10 gives you multiple shims to stack or spare parts for future tweaks. • Works in BB30/PF30/BB86/92 and similar shell standards for broad compatibility. These features combine to give a low-cost, non-destructive method to dial in crank fitment and improve drivetrain performance with minimal tools required.

Fit & Compatibility

The shim is intended for any crank with a 30mm spindle diameter used in BB30-style installations. Typical compatible shell types include BB30, PF30, BB86 and BB92, as well as other press-fit or threaded systems that accept 30mm spindle cranks. Note: This spacer is sized for true 30.0mm I.D. spindles. It is not intended for 28.99mm or other non-30mm standards unless you are intentionally using a spacer for clearance — always verify spindle diameter before installation. You can stack multiple shims to reach the desired total offset, but be mindful of bearing preload and chainline limits.

Who It's For

This is a must-have small-parts item for bike mechanics, home builders and riders who run 30mm spindle cranksets and need precise chainline or bearing preload adjustments. If you build bikes, swap cranks between frames, or regularly service bottom brackets, keeping a bag of these spacers in your toolbox saves time and prevents improper fits. Road and performance cyclists, bikepackers and workshop techs will appreciate the ability to eliminate creaks, remove play and achieve the exact offset needed for smooth shifting and longer bearing life.

Key Features

  • ✓ Precision 0.5mm thickness for fine chainline and preload adjustments
  • ✓ Machined from engineering-grade Delrin for low friction and durability
  • ✓ 30.0mm inner diameter sized for BB30-style 30mm spindles
  • ✓ Bag of 10 spacers — multiples for stacking or spare use
  • ✓ Compatible with BB30, PF30, BB86/92 and similar shell standards
  • ✓ Prevents metal-on-metal contact and reduces creak risk

Specifications

Misc 0.5mm, bag of 10

Product Identifiers

Vendor Item # PF30-0.5MM-10
UPC 836572009710

Frequently Asked Questions

Will these spacers fit my crank?

If your crank uses a 30.0mm diameter spindle (BB30-style), these spacers will fit. Measure the spindle diameter to confirm — they are not sized for smaller standards like 28.99mm. They work with BB30, PF30, BB86/92 and similar shells that accept 30mm spindles.

Can I stack multiple shims to get a larger adjustment?

Yes — the bag of 10 lets you combine 0.5mm spacers to achieve larger offsets. Stacking is common for fine tuning, but keep an eye on bearing preload and overall chainline. Use the minimum number needed and recheck bearing play after each change.

How do these spacers affect bearing life?

Used correctly, the spacers help ensure proper bearing preload and alignment, which improves bearing life. Over- or under-preloading bearings can reduce longevity, so adjust incrementally and torque per manufacturer spec. The Delrin material reduces direct metal-to-metal contact at the spindle interface.

Are these safe to use with carbon spindles or carbon cranksets?

Delrin is a soft, low-friction plastic that is gentle on most spindle finishes, including carbon and polished metal. Still, install carefully to avoid cross-threading or levering that could damage surfaces — spacers should slide on smoothly with minimal force.

How many shims should I keep on hand?

A single bag of 10 is a practical workshop supply. For builders or shops that frequently swap cranks, two bags (20 shims) cover most situations: single-shim tweaks, stacked adjustments and replacements for multiple bikes.

Does the spacer affect chainline significantly?

Each 0.5mm shim provides a precise, small change to crank position — useful for fine chainline tweaks. For large chainline corrections, you may need different crank spacers, spider washers, or a different crankset; these shims are intended for incremental adjustments.

Buying Guide

When buying bottom bracket shims, choose the correct inner diameter and thickness for your crank spindle. Wheels Manufacturing offers this part in 0.5mm and 1.0mm thicknesses — select 0.5mm for fine adjustments and 1.0mm when you need a larger single-step change. A bag of 10 provides flexibility to stack shims or keep spares. Consider material and tolerances: Delrin provides low friction and stable thickness without risk of corrosion. For frequent swapping or professional builds, keep multiple thicknesses on hand and always recheck bearing preload and chainline after every change.

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