SRAM DUB PF30 Road 73mm

$60.00

In Stock

SRAM DUB PF30 Road 73mm press-fit bottom bracket designed for PF30 shells with a Cannondale-specific left cup. DUB interface, sealed steel bearings, and 28.99mm spindle compatibility.

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Product Details

Overview & Technology

SRAM DUB PF30 Road 73mm is a press-fit bottom bracket engineered for modern road PF30 frames. It uses SRAM's DUB interface to provide a consistent 28.99mm spindle interface that optimizes crank-to-frame alignment and reduces lateral play. This unit includes a Cannondale-specific left cup and features 46mm cups pressed into a PF30 shell. The bearings are high-quality sealed steel units designed for durability in road conditions, while the DUB spindle diameter and shell-specific cups improve stiffness and drivetrain efficiency.

Key Features & Benefits

DUB interface and 28.99mm spindle: The DUB spindle offers broad crank compatibility across SRAM models and helps maintain a precise bearing spacing for improved pedaling stiffness and power transfer. Sealed steel bearings & 46mm cups: Robust steel bearings deliver long life and predictable service intervals. The 46mm cup diameter and sealed construction protect internals from road grit and moisture for reduced maintenance and smoother rolling under load.

Fit, Specs & Compatibility

This bottom bracket is built for PF30 shell frames with a 73mm shell width and uses press-fit cups sized at 46mm diameter. The included Cannondale left cup accommodates the brand's proprietary BB interface so you get factory-level fit without adapters. Key specifications: BB shell type: PF30; shell width: 73mm; bearing: steel sealed; spindle diameter: 28.99mm (DUB). Check crank compatibility—designed for SRAM DUB cranksets and compatible DUB-spec crank spindles from other manufacturers that accept a 28.99mm spindle.

Who It's For

This BB is ideal for road riders who run PF30 frames—especially owners of Cannondale frames who need the specific left cup included. It's a straightforward choice for riders fitting SRAM DUB cranks or upgrading worn press-fit bearings for improved longevity and stiffness. If you value low-maintenance sealed bearings, precise spindle fit, and a direct OEM-style installation for Cannondale PF30 shells, this BB offers a dependable, performance-focused solution without unnecessary weight or complexity.

Key Features

✓ SRAM DUB interface for consistent 28.99mm spindle fit
✓ Includes Cannondale-specific left cup for factory fitment
✓ Press-fit PF30 cups sized for 73mm shell widths
✓ Sealed steel bearings for durability under road conditions
✓ 46mm cup diameter optimized for PF30 press-fit frames
✓ Lightweight assembly — total shipped weight only 0.25 lb
✓ SRAM Model ID BB-DUB-PF30-A1, MPN 00.6418.028.001

Specifications

BB Shell Type	PF30
BB Shell Width	73mm
BB Bearing	Steel
Crank Spindle Diameter	28.99mm
Interface	DUB
Cup Diameter	46mm
Primary Color	Black

Product Identifiers

Vendor Item #	00.6418.028.001
UPC	710845826184

Frequently Asked Questions

Is this bottom bracket compatible with non-SRAM cranks?

The DUB PF30 Road 73mm is designed around a 28.99mm DUB spindle. Any crank that uses a 28.99mm spindle and is DUB-compatible should work, but always verify manufacturer recommendations for crank-to-BB compatibility and required spacers or adaptors.

Can I service or replace the bearings?

Yes. The unit uses sealed steel bearings that can be removed and replaced when they wear. Service typically involves pressing out the old bearings and pressing in new ones; if you're not familiar with press-fit work, professional installation is recommended to avoid frame damage.

Do I need special tools to install this press-fit BB?

Installation requires a PF30 press-fit tool or a bearing press to seat the 46mm cups properly and a DUB-specific cup installer for the Cannondale left cup. Using a proper press avoids shell damage and ensures correct alignment.

What's the difference between DUB and other SRAM systems like GXP?

DUB standardizes on a 28.99mm spindle diameter and focuses on a single sealed-bearing interface to simplify compatibility across cranks. GXP uses a different spindle/bearing arrangement with a stepped spindle diameter and is not interchangeable without adapters.

Will this fit a PF30 shell with a 68mm or 83mm width?

This specific SKU is for 73mm shell width. For 68mm or 83mm shells you should select the correct BB variant sized for those widths to ensure proper chainline and bearing preload.

Is the Cannondale left cup necessary?

Yes, for Cannondale frames that require the proprietary left cup, this included part ensures correct seating and alignment. Using a non-specific cup can cause improper fit or creaks.

Buying Guide

When choosing a bottom bracket for a PF30 road frame, confirm your shell width (this model is 73mm) and whether your frame needs a brand-specific cup — this SRAM BB includes the Cannondale left cup to ensure direct fit. Match the BB interface to your crank spindle diameter: DUB (28.99mm) is the standard here and provides broad compatibility with modern SRAM cranks. Consider material and serviceability: sealed steel bearings offer long service life and predictable maintenance intervals for road use. If you plan frequent wet-weather riding or high-mileage training, choose sealed-bearing units and factor in annual inspection or bearing replacement depending on conditions.

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