SRAM BB DUB PressFit 30 68/73mm

$50.00

In Stock

SRAM BB DUB PressFit 30 for PF30 68/73mm shells provides a DUB 28.99mm spindle interface, sealed steel bearings, and robust sealing for long-lasting MTB performance.

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Product Details

Overview & Technology

SRAM's DUB PressFit 30 bottom bracket brings the DUB spindle standard to PF30 frames with a precision-engineered press-fit cup and sealed steel bearings. The DUB system pairs a 28.99mm spindle diameter with dedicated cups to deliver consistent chainline, better sealing against water and grit, and a reduction in creaks typical of older PF implementations. The BB DUB PressFit 30 (Model ID: BB-DUB-PF30-A1, MPN: 00.6418.018.000) uses 46mm-diameter cups and sealed steel bearings housed in a robust composite/metal cup assembly finished in matte black. Real-world benefits include smoother pedaling under load, reduced maintenance frequency, and improved durability on muddy, wet trails.

Key Features & Construction

Materials and build: sealed steel bearings provide high load capacity and long life, while the precisely machined cup diameter (46mm) and press-fit interface ensure concentric seating in PF30 shells. The DUB spindle interface is optimized for a 28.99mm crank spindle, balancing stiffness and bearing durability. Performance benefits: better dust and water exclusion from the sealed bearings, consistent spindle-to-bearing engagement to minimize play, and compatibility with SRAM DUB cranks for reliable power transfer and reduced drivetrain noise.

Fit, Compatibility & Installation Notes

This bottom bracket is designed for PF30 shells with widths of 68mm or 73mm and is intended for use with SRAM DUB cranks. The DUB spindle diameter is 28.99mm — it will not accept older GXP or BB30 spindles without the appropriate adapters. Cup diameter is 46mm and the unit presses directly into PF30 frames. Installation is a press-fit operation: use a proper press-fit BB installation tool and guides to avoid frame damage. Lightly grease the cups and follow SRAM’s crank preload and torque instructions for the crankarm fixing hardware. Because bearings are sealed steel, service is minimal, but periodic inspection and replacement when wear appears will keep drivetrains running quietly.

Who It's For

This BB is aimed at mountain bikers running SRAM DUB cranksets in frames with PF30 68/73mm shells — from trail and all-mountain riders to aggressive cross-country racers who want the DUB spindle standard’s balance of stiffness and bearing life. It's the right choice for riders who value straightforward compatibility, long bearing life, and tidy drivetrain performance. If you ride in wet, muddy, or dusty conditions and want reduced maintenance intervals with reliable sealing, the BB DUB PressFit 30 is a practical upgrade/replacement part that keeps your DUB crankset working as intended.

Key Features

✓ DUB spindle interface precisely sized to 28.99mm for SRAM crank compatibility
✓ Fits PF30 frames with 68mm or 73mm bottom bracket shell widths
✓ Sealed steel bearings for high load capacity and long-term durability
✓ 46mm cup diameter with machined press-fit cups for concentric seating
✓ Improved sealing design reduces contamination and drivetrain creaks
✓ Lightweight press-fit assembly (shipping weight 0.25 lb), matte black finish

Specifications

BB Shell Type	PF30
BB Shell Width	68/73mm
BB Bearing	Steel
Crank Spindle Diameter	28.99mm
Interface	DUB
Cup Diameter	46mm
Primary Color	Black

Product Identifiers

Vendor Item #	00.6418.018.000
UPC	710845813740

Frequently Asked Questions

Will this bottom bracket fit my PF30 frame?

Yes — the BB DUB PressFit 30 is designed for PF30 shells in 68mm or 73mm widths. Confirm your frame uses a PF30 standard (not BSA/BB86) before purchasing.

Is this compatible with non‑SRAM cranks?

No — this unit is specifically for SRAM DUB cranks with a 28.99mm spindle. Non‑DUB spindles (GXP, BB30, Shimano) require different BBs or adapters and will not seat correctly in these bearings.

What tools do I need to install it?

A proper press-fit bottom bracket press and alignment drift are required to avoid frame damage. You’ll also need the appropriate crank arm installation tools and torque wrench to set preload and bolts per SRAM specs.

How long do the bearings last?

Bearing life depends on conditions and maintenance. Sealed steel bearings can last thousands of kilometers in dry conditions; expect shorter life in wet/muddy riding. Inspect annually or if you detect roughness or play, and replace bearings as needed.

Can I service the bearings or replace them separately?

Bearings are sealed units and are typically replaced rather than serviced. Replacement sealed bearings are available from SRAM and select third-party suppliers; press tools are recommended for both removal and installation.

What does SRAM’s DUB standard mean for my bike?

DUB standardizes the spindle diameter and BB interfaces to improve durability and simplify compatibility. It balances spindle stiffness and bearing life across different frame BB standards, giving a more uniform setup for SRAM crank users.

Buying Guide

When selecting a bottom bracket for a PF30 MTB frame, match the shell standard (PF30), shell width (68mm or 73mm), and crank spindle diameter. If you run SRAM DUB cranks, choose a DUB-specific BB like this model to ensure proper spindle support and sealing. Consider bearing material and sealing: sealed steel bearings offer robust life and high load capacity for mountain use. If you ride in extremely wet or sandy conditions, plan for more frequent inspections and replacement intervals. Always use correct press-fit tools or professional installation to protect the frame and guarantee concentric seating.

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