SRAM DUB PressFit BB89.5 / BB92 Bottom Bracket | PF41 | Mountain Bike (MTB)

Discover SRAM's revolutionary DUB (Durable Unified Bottom Bracket) technology! This bottom bracket, located at the heart of your bicycle, is not just a connecting piece; it's also the point where precision and durability combine to transfer your performance directly to your drivetrain. The SRAM PressFit PF41 BB89.5/92 DUB bottom bracket is designed to offer a long-lasting, smooth, and efficient riding experience for your mountain bike (MTB).

This model is specifically designed for mountain bikes (MTB) with frame shells meeting BB89.5 or BB92 standards. It seamlessly integrates your next-generation SRAM DUB cranks into your frame.

🔧 Technical Specifications

• Intended Use: 🚵‍♂️ Mountain Bike (MTB) / Cross-Country (XC), Trail, All-Mountain, Enduro

• Model: SRAM DUB (Durable Unified Bottom Bracket) Series

• Bottom Bracket Type: PressFit PF41 (No torque required, pressed into the frame)

• Compatible Shell Width: 📏 89.5 mm or 92 mm (Compatible with both measurements)

• Shell Inner Diameter (Shell Ø): 🔄 41 mm (PF41 standard)

• Cup Material: High-density, durable Polymer (Plastic) – dampens vibrations and facilitates installation.

• Bearing Material: ⚙️ Steel – Long-lasting and robust use.

• Bearing Type: Sealed Cartridge Bearings

• Spindle Diameter: 🔩 28.99 mm (SRAM DUB spindle standard)

• Compatible Crankset: All SRAM DUB series cranks (XX1, X01, GX, NX etc. DUB cranks)

• Color: Black (Matte/Black cup appearance)

• Weight: ⚡ Only 71g (Manufacturer's data) – Significantly lighter than the GXP system.

• GTIN / Barcode: 710845813757

• Manufacturer Part Number (MPN): 00.6418.016.000

🛡️ Technological Advantages

SRAM aims to end the confusion of bottom bracket standards with its DUB (Durable Unified Bottom Bracket) philosophy. So, what makes this product special?

1. DUB™ Technology: One Spindle, All Standards
Instead of producing different spindle diameters for various shell standards, SRAM engineers chose a single, most durable and efficient spindle diameter (28.99 mm). This "unified" approach maximizes the connection between crank arms and the bottom bracket. This means:

• Stiffer Connection: Lateral flex during pedaling is minimized.

• Better Power Transfer: Every watt of power transferred from your legs to the wheel is transmitted without loss.

2. Gutter Seal Technology™: Warrior Against Mud and Water
Mountain biking means being immersed in mud, water, dust, and dirt. SRAM's patented Gutter Seal Technology™ creates an extra protective shield around the bearings.

• This advanced sealing prevents external elements from entering the bearings, significantly extending bearing life.

• Compared to previous generation GXP systems, friction resistance has been reduced, and rotational efficiency increased.

3. PressFit PF41 System: Easy Installation, Robust Structure
The PF41 standard is designed for bikes with a 41 mm diameter shell. The PressFit system does not require threading; the bottom bracket cups are precisely pressed into the frame. This results in:

• Elimination of stress and damage risk that could arise from threading the frame.

• A perfect fit.

4. Balance of Lightweight and Durability
Weighing only 71 grams, this bottom bracket is much lighter than its predecessor, the GXP system. Steel bearings combined with a lightweight polymer cup promise years of trouble-free use. This is a significant advantage for mountain bikers who want to turn the bike's total weight into an advantage, especially on long climbs and technical trails.

Important Reminder: DUB is a standard, not a new type of bottom bracket. This means this bottom bracket seamlessly fits your existing PressFit BB89.5/92 standard frame. You can simply remove your old GXP crank and install your new DUB crank to start enjoying the benefits of this technology.

Why Choose This Product?

If your bike has SRAM DUB cranks at its heart, this bottom bracket is the ideal match for them. Its improved sealing extends your maintenance intervals, its lightweight design increases your bike's agility, and its stiffness ensures every pedal stroke is transferred to the road/trail in its purest form.

Check your frame's BB measurement (must be BB89.5 or BB92 and 41 mm inner diameter) and upgrade your riding quality to the next level by transitioning to the SRAM DUB world!