SRAM DUB PF30 100 SBC

$60.00

In Stock

The SRAM DUB PF30 100 SBC is a sealed press-fit bottom bracket built for PF30 MTB shells. It pairs a 28.99mm DUB spindle with steel bearings and a 46mm cup diameter for durable, low-maintenance performance.

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Product Details

Overview & Technology

SRAM DUB PF30 100 SBC is a press-fit bottom bracket engineered for modern mountain bikes with a 100mm PF30 shell. It uses SRAM's DUB interface with a 28.99mm spindle diameter to deliver a robust crank-to-frame interface that balances stiffness and reliability across rough terrain. The assembly features steel cartridge bearings housed in precision cups with a 46mm outside diameter and sealed labyrinth-style seals for water and grit resistance. The SBC (sealed bottom cartridge) design simplifies service intervals and reduces creaks by keeping contaminants out and lubrication in.

Key Features & Construction

The DUB PF30 100 SBC combines lightweight aluminum cups with durable steel bearings to give a reliable, long-wearing interface. Cups are finished in black and sized to the PF30 standard (46mm OD), and the sealed bearing cartridges are optimized for lateral stiffness and rotational smoothness. Real-world benefits include improved pedaling efficiency, reduced drivetrain noise, and easier maintenance compared with loose-bearing press-fit solutions. At just 0.15 lb shipping weight and compact dimensions, it's an easy replacement or upgrade for PF30-equipped frames.

Fit, Compatibility & Installation Notes

This bottom bracket is specifically built for PF30 frame shells with a 100mm shell width. It accepts SRAM DUB cranks with the 28.99mm spindle interface; compatibility with other crank brands depends on the spindle diameter and interface—most non-DUB cranks will not seat correctly without an adapter. Cup diameter is 46mm and the unit expects standard PF30 press-fit tolerances. Installation requires a press-fit tool and attention to frame tolerances: press the cups straight and square to avoid creasing seals or distorting the shell. If your frame has oversized or undersized PF30 seats, check with a bike mechanic or frame manufacturer before pressing. Manufacturer part number: 00.6418.028.004 (Product #380505).

Who This Is For

Designed for mountain bikers who run SRAM DUB cranks on PF30 frames, this bottom bracket suits trail, enduro and all-mountain riders who want a sealed, low-maintenance solution. It's ideal for riders replacing worn press-fit bearings or upgrading from older BB standards to the DUB spindle diameter for better compatibility with modern cranksets. If you ride in wet, muddy or high-mileage conditions and want a straightforward, sealed cartridge BB that reduces creak and stays serviceable, the DUB PF30 100 SBC is a practical, durable choice.

Key Features

✓ DUB interface for 28.99mm SRAM crank spindles
✓ Press-fit PF30 cups sized for 100mm shell width
✓ Sealed cartridge (SBC) steel bearings for durability
✓ 46mm cup diameter fits standard PF30 bores
✓ Black anodized cups resist corrosion and wear
✓ Low maintenance design reduces creak and contaminants
✓ Compact 0.15 lb shipping weight and compact profile

Specifications

BB Shell Type	PF30
BB Shell Width	100mm
BB Bearing	Steel
Crank Spindle Diameter	28.99mm
Interface	DUB
Cup Diameter	46mm
Primary Color	Black

Product Identifiers

Vendor Item #	00.6418.028.004
UPC	710845841170

Frequently Asked Questions

Is this bottom bracket compatible with my SRAM DUB crank?

Yes — the DUB PF30 100 SBC is designed specifically for SRAM DUB cranks with a 28.99mm spindle diameter. Make sure your frame has a PF30 shell with a 100mm width to ensure proper fit.

Can I use this BB with non-SRAM cranks?

Generally no — most non-SRAM cranks use different spindle diameters or interfaces. If your crank uses a 28.99mm spindle and is designed for DUB, it may fit, but confirm manufacturer compatibility or consult a mechanic before installation.

Are the bearings serviceable or replaceable?

The DUB PF30 100 SBC uses sealed steel cartridge bearings that are not intended for in-frame servicing. When bearings wear, the entire cartridge is typically replaced. Sealed design, however, extends life and reduces maintenance frequency.

What tools do I need to install this press-fit BB?

Installation requires a suitable press-fit BB installation tool or arbor press to press the cups squarely into the PF30 shell. A bearing press, alignment tool and anti-seize or light grease on the cup interface are recommended. If unsure, have a qualified bike shop press it in.

Will this fix creaks in my PF30 bottom bracket area?

If creaks are caused by worn or contaminated bearings or a failing cartridge, replacing them with this sealed DUB BB often eliminates noise. However, creaks can also come from frame tolerances, crank preload, or chainring bolts — diagnose all possible sources.

What is the difference between PF30 and BB30?

PF30 is a press-fit standard where cups press into the frame; BB30 is a bearing-in-frame standard where bearings press directly onto a 30mm spindle without cups. The SRAM DUB PF30 unit uses cups (46mm OD) to adapt the PF30 shell to the DUB spindle diameter.

Buying Guide

When choosing a bottom bracket for a mountain bike, prioritize interface compatibility (spindle diameter and shell standard), bearing type, and sealing. For modern SRAM DUB cranks, selecting a DUB-specific PF30 cartridge like this ensures correct spindle support and reduces the need for adapters. Consider steel vs. ceramic bearings based on budget and service goals: steel bearings are durable and cost-effective for aggressive riding, while ceramic options deliver lower friction at a higher cost. Also check frame shell tolerances and whether you want a press-fit cup system or convertible adapters for easier future swaps.

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