SRAM DUB PF92 Ceramic
SRAM

SRAM DUB PF92 Ceramic

$290.00
In Stock

SRAM DUB PF92 Ceramic press-fit bottom bracket for BB92 frames. Hybrid ceramic bearings and DUB 28.99mm interface deliver low friction and long life for SRAM DUB cranks.

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Product Details

Overview & Technology

SRAM DUB PF92 Ceramic is a purpose-built press-fit bottom bracket engineered to pair with SRAM DUB spindle cranks on BB92 frames (89/92mm shell width). It combines a precise 41mm cup diameter and a DUB 28.99mm spindle interface with hybrid ceramic bearings for reduced rolling resistance and improved longevity compared with standard steel bearings. The unit uses sealed hybrid ceramic bearings (silicon nitride balls paired with corrosion-resistant steel races) housed in anodized aluminum press-fit cups. That construction yields a lightweight, stiff assembly that resists contamination and keeps drivetrain drag low under real-world conditions.

Key Features & Benefits

Low friction, high durability: Hybrid ceramic bearings cut friction for smoother pedaling and better power transfer while resisting wear. Expect crisper acceleration and quieter spin-ups compared to conventional bearings. Precision fit and corrosion resistance: CNC-finished aluminum cups (41mm OD) with a snug press-fit tolerance protect the bearings and keep alignment true. Seals and stainless races help fend off water and grit on long rides or through wet seasons.

Fit, Compatibility & Installation Notes

Frame and crank compatibility: Designed for BB92 shell types with 89mm or 92mm widths and a 41mm cup diameter. It accepts SRAM cranks with a DUB spindle diameter of 28.99mm (SRAM Model ID: BB-DUB-PF-A1). It is not compatible with 24mm (Shimano/older) or 30mm spindle systems without an adapter. Installation tips: Press-fit BBs require the correct press tool and drift to avoid frame or cup damage—do not hammer cups. Grease or recommended retaining compound on the cup interface reduces creak and simplifies future removal. Bearings are sealed and replaceable; periodic inspection and service are recommended for long-term performance.

Who This Is For

This bottom bracket is aimed at mountain riders running SRAM DUB cranks on modern press-fit BB92 frames who want a performance upgrade: lower friction, longer bearing life, and more consistent bearings under load. It's a popular choice for cross-country, trail, and enduro riders who value drivetrain efficiency. Choose the DUB PF92 Ceramic if you already run a DUB crankset or plan to upgrade to one — it’s an essential, direct-fit part that removes drivetrain compromise and keeps your power delivery sharp on climbs and technical sections.

Key Features

  • ✓ Direct-fit for SRAM DUB 28.99mm spindle cranks
  • ✓ Hybrid ceramic bearings (silicon nitride balls) for low friction
  • ✓ Designed specifically for BB92 press-fit shells (89/92mm)
  • ✓ 41mm cup diameter with anodized aluminum press-fit cups
  • ✓ Sealed bearings with stainless races for corrosion resistance
  • ✓ Lightweight, stiff construction improves power transfer
  • ✓ SRAM model ID BB-DUB-PF-A1, MPN 00.6418.016.006

Specifications

BB Shell Type BB92
BB Shell Width 89/92mm
BB Bearing Ceramic
Crank Spindle Diameter 28.99mm
Interface DUB
Cup Diameter 41mm
Primary Color Black

Product Identifiers

Vendor Item # 00.6418.016.006
UPC 710845873140

Frequently Asked Questions

Will this bottom bracket fit my frame?

The DUB PF92 Ceramic is built for BB92 shells with 89mm or 92mm widths and a 41mm cup diameter. Check your frame spec for BB92 or press-fit 41mm cup compatibility before ordering.

Can I use this with non‑SRAM cranks?

This unit is engineered for SRAM DUB cranks with a 28.99mm spindle. It won't directly fit 24mm (Shimano) or other spindle standards without an appropriate adapter; compatibility depends on the crank system.

Are the bearings serviceable or replaceable?

The bearings are sealed hybrid ceramic units and are replaceable. For best results replace bearings with SRAM-specified bearings or equivalent sealed hybrid replacements and maintain seals during reassembly.

Do I need any special tools to install this bottom bracket?

Yes. Press-fit bottom brackets require a dedicated BB press and alignment drift for safe, damage-free installation. Avoid hammering cups; consider professional installation if you don’t own the correct tools.

How often should I service the bearings?

Service intervals vary with conditions; inspect every 6–12 months or after wet/muddy rides. In dry, low-mileage use bearings may last longer, but replace bearings at first sign of roughness or play to protect crank and shell integrity.

What performance gains can I expect from ceramic bearings?

Hybrid ceramic bearings reduce rolling resistance and can feel smoother under load, improving perceived efficiency and acceleration. Real-world gains depend on rider power and conditions, but durability and lower drag are consistent benefits.

Buying Guide

When choosing a bottom bracket, match three key specs: shell type, spindle interface, and bearing material. For modern mountain frames with a BB92 press-fit shell, pick a BB with a 41mm cup OD and confirm the shell width (89mm or 92mm). Also make sure the BB matches your crank spindle standard — SRAM DUB uses a 28.99mm spindle. Ceramic/hybrid bearings are a good upgrade for riders seeking lower friction and longer bearing life, but they still need correct installation and periodic inspection. If you lack a BB press or frame-facing tools, factor professional installation into your purchase or add the required tools to your cart.

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