Wheels Manufacturing PF30-Shim
PF30-Shim
Wheels Manufacturing

Wheels Manufacturing PF30-Shim

In Stock

Lightweight, machined Delrin adapter that converts PressFit 30 frames to accept Shimano Hollowtech II 24mm cranks. Press-in installation into PF30 6806 bearings — simple, reliable fit.

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Available Options

Option Price Availability
Wheels Manufacturing, Pressfit 30 to Shimano 24mm adapter, PF30-SHIM — In Stock
Wheels Manufacturing, Pressfit 30 to SRAM 22/24mm adapter, PF30-SRAM — In Stock

Product Details

Overview & Technology

Wheels Manufacturing PF30-Shim is a purpose-built, elegant solution for riders who want to run Shimano Hollowtech II (24mm) cranks in PressFit 30 frames. Machined from engineering-grade Delrin, these press-in adapters give you a low-friction, corrosion-resistant sleeve that locates precisely in PF30 shells with 6806 bearings. At just 48g per pair, the PF30-Shim keeps rotating weight down while providing a trouble-free interface between crank spindle and pressed bearings. Installation is straightforward: press the adapters into the PF30 6806 bearings, slide the Shimano spindle through, and fit your cranks — but be sure to remove the stock seals before installing the adapter as noted by the manufacturer.

Key Features & Benefits

Material and engineering: Machined from high-quality Delrin for dimensional stability, low friction, and chemical resistance. Delrin resists creep and wear under load, so you get consistent spindle alignment and smooth pedal action. • Lightweight: 48g per pair keeps mass low for performance-focused road and gravel builds. • Precision machined: Accurate inner bore for 24mm Shimano spindles and tight outer diameter for PF30 6806 bearings. • Easy install: Press-in design installs quickly without removal of bearings (but remove stock seals first).

Fit & Compatibility

The PF30-Shim is made specifically for PF30 shell frames that use 6806 (PressFit 30) bearings and for cranks with a 24mm spindle — typical of Shimano Hollowtech II road and many gravel cranksets. It is not a bearing; the adapter presses into the existing PF30 bearings and acts as the interface sleeve for the crank spindle. Important notes: remove the bearing stock seals before installing the adapter per Wheels Manufacturing's instructions. If your crank is a SRAM 22/24mm (GXP-type) spindle, consider the PF30-SRAM variant. Always confirm your frame's bearing type (6806) and spindle diameter before ordering.

Who This Is For

This adapter is ideal for road and gravel riders who own a PF30 frame but prefer Shimano Hollowtech II cranks — whether upgrading components, swapping cranks between bikes, or building up a frameset. It's a great lightweight choice for riders who want a low-maintenance, precise fit without changing bearings or buying a new bottom bracket system. Mechanics, home wrenchers and bike shops will appreciate the straightforward press-in installation and the durable Delrin construction that stands up to repeated crank swaps and regular service intervals.

Key Features

  • ✓ Machined engineering-grade Delrin for low friction and dimensional stability
  • ✓ Press-in adapter designed for PF30 shells with 6806 bearings
  • ✓ Designed to accept 24mm Shimano Hollowtech II spindles
  • ✓ Ultra-lightweight option — 48 grams per pair
  • ✓ Simple installation: press into bearings, insert spindle and cranks
  • ✓ Must remove bearing stock seals before installing adapter
  • ✓ Sold as PF30-SHIM; alternate PF30-SRAM available for 22/24mm spindles

Specifications

BB Shell Type PF30
Crank Spindle Diameter 24mm

Product Identifiers

Vendor Item # PF30-SHIM
UPC 836572007983

Frequently Asked Questions

Do these adapters include bearings?

No. The PF30-Shim adapters are sleeves that press into your existing PF30 6806 bearings — they do not replace bearings. You need pressfit 30 (6806) bearings already installed in the BB shell.

Will this adapter work with Shimano Hollowtech II cranks?

Yes. The PF30-Shim is specifically sized for 24mm Shimano Hollowtech II spindles. It creates the correct inner interface so your Shimano crankset can be fitted to a PF30 shell.

What about SRAM crank compatibility?

SRAM crank compatibility depends on spindle diameter. Wheels Manufacturing offers a PF30-SRAM variant for 22/24mm SRAM spindles. Verify your crank spindle spec — if it’s 24mm and fits Shimano standard, PF30-Shim will work; if it’s GXP-style 22/24mm, use PF30-SRAM.

Why do I have to remove the stock seals before installing the adapter?

The PF30-Shim is sized to seat directly against the bearing bore. Stock bearing seals can prevent full seating of the adapter and interfere with spindle clearance. Removing the seals ensures proper fit and preload; follow Wheels Manufacturing's installation guidance.

What tools and steps are recommended for installation?

A bearing press or a compatible press-fit installation tool is recommended to install the adapters squarely and without damage. Clean the BB shell and bearings, remove stock seals, lightly grease the outer diameter of the adapter, press evenly until fully seated, then slide the spindle through and torque crank bolts to manufacturer spec.

How durable are Delrin adapters compared to metal sleeves?

Delrin offers excellent wear resistance, dimensional stability, and low friction for this application while being lighter than many metal alternatives. It resists corrosion and handles typical service loads for road and gravel use; replacement is inexpensive if you perform frequent crank swaps or experience unusual wear.

Buying Guide

When choosing a bottom bracket adapter, confirm two things: your frame's BB shell standard and your crank spindle diameter. For PF30 frames you need pressfit 30 (6806) bearings installed in the shell; the PF30-Shim then presses into those bearings and provides the 24mm inner bore Shimano Hollowtech II cranks require. Consider material choices — Delrin balances light weight with wear resistance and chemical stability — and whether you prefer a plastic sleeve or metal solution for heavy-duty use. Also check installation needs: a bearing press makes installation straightforward and prevents damage. If you frequently change cranks or use non-standard spindles (SRAM GXP), look at the matching variant (PF30-SRAM) or alternative bottom bracket systems that better match your crankset's spindle specs.

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