SRAM 900 Disc
900 Disc
900 Disc
900 Disc
900 Disc
SRAM

SRAM 900 Disc

$100.00
In Stock

The SRAM 900 Disc hub delivers lightning-fast DOUBLE TIME engagement, long-lasting SPEEDBALL bearings, and interchangeable end caps for versatile, lightweight gravel and mixed-terrain builds.

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Available Options

Option Price Availability
SRAM, 900 Disc, Hub, 6-Bolt, Front, 24H, QR, 12x100mm & 15x100mm $100.00 In Stock
SRAM, 900 Disc, Hub, 6-Bolt, Front, 28H, QR, 12x100mm, 15x100mm $100.00 In Stock
SRAM, 900 Disc, Hub, 6-Bolt, Rear, 28H, QR, 12x142mm ,Shimano $250.00 In Stock
SRAM, 900 Disc, Hub, 6-Bolt, Rear, 28H, QR, 12x142mm XD-R $250.00 In Stock
SRAM, 900 Disc, Hub, 6-Bolt, Front, 32H, QR, 12x100mm, 15x100mm, 20x110mm $100.00 In Stock
SRAM, 900 Disc, Hub, 6-Bolt, Front, 32H, 15x110mm, 21mm and 31mm axle caps $100.00 In Stock
SRAM, 900 Disc, Hub, 6-Bolt, Rear, 32H, QR, 12x142mm ,Shimano $250.00 In Stock
SRAM, 900 Disc, Hub, 6-Bolt, Rear, 32H, QR, 12x142mm XD-R $250.00 In Stock
SRAM, 900 Disc, Hub, 6-Bolt, Rear, 32H, QR, 12x148mm ,Shimano $250.00 In Stock
SRAM, 900 Disc, Hub, 6-Bolt, Rear, 32H, QR, 12x148mm XD-R $250.00 In Stock
SRAM, 900 Disc, Hub, Front, 28H, 15mm TAx110mm, 6-bolts, Black $100.00 In Stock
SRAM, 900 Disc, Hub, Rear, 28H, 12mm TAx148mm, SRAM XD-R, 6-bolts, Black $250.00 In Stock

Product Details

Overview & Technology

SRAM's 900 Disc hub blends fast engagement and durable bearings into a lightweight, service-friendly package. The hub uses SRAM's DOUBLE TIME drive mechanism for immediate pedal response and SPEEDBALL sealed bearings for low friction rotation and long life. This hub family is built with modularity in mind: interchangeable end caps allow quick axle conversions (QR, 12mm, 15mm TA) and the 6-bolt rotor mount keeps compatibility simple across rotor brands. Available in multiple spoke counts and freehub options (SRAM XD-R and Shimano variants), the 900 Disc is engineered for gravel, cyclocross and mixed-terrain bikes that demand responsive engagement and reliable durability.

Key Features & Construction

Materials and build: The 900 front hub features an aluminum hub shell machined for stiffness and weight savings, a lightweight 150g front hub weight (variant-dependent), and a 6-bolt rotor interface. Internally it uses the DOUBLE TIME ratchet/drive mechanism for fast engagement paired with SPEEDBALL sealed bearings for smooth, low-maintenance spinning. Real-world benefits: Faster engagement means quicker power transfer out of corners and on technical climbs; robust sealed bearings resist contamination on muddy gravel or wet cyclocross courses. The XD-R freehub option supports SRAM cassettes, while Shimano freehub bodies are available on select rear variants, making the 900 a flexible choice across modern drivetrain standards.

Fit & Compatibility

The 900 Disc is designed to be adaptable. Stock configurations include front and rear options, 24H and 28H drilling, Boost spacing availability, and multiple axle types (QR, 12mm, 15mm thru-axles). Interchangeable end caps let you convert between axle standards without buying a new hub. Freehub & rotor compatibility: Rear variants come with SRAM XD-R freehub bodies for SRAM 11/12-speed cassettes or Shimano-compatible bodies on alternate SKUs. The hub uses a 6-bolt rotor mount for broad rotor compatibility. Confirm your wheel’s hole count and axle standard before ordering — Forest Bikes lists available variants to match most gravel, cyclocross, and road-disc builds.

Who It's For

The SRAM 900 Disc is ideal for gravel riders, cyclocross racers, and riders building lightweight mixed-terrain wheels who want quick engagement and durable, low-drag bearings. It’s a great choice for custom wheelbuilders looking for a versatile hub platform that covers multiple axle standards and cassette types. If you prioritize snappy pedaling response on punchy climbs, need an easy axle conversion for different bikes or forks, and want sealed bearings that stand up to mud and grit, the 900 is built for your ride.

Key Features

  • ✓ DOUBLE TIME drive for immediate, lightning-fast engagement
  • ✓ SPEEDBALL sealed bearings for low friction and long life
  • ✓ Interchangeable end caps convert QR/12/15mm axle standards
  • ✓ Available in Boost spacing and multiple spoke counts
  • ✓ 6-bolt rotor interface for reliable rotor mounting
  • ✓ SRAM XD-R or Shimano-compatible freehub body options
  • ✓ Lightweight front hub — approximately 150g (variant dependent)

Specifications

Axle Type QR/12/15mm TA
Hub Drilling 24H
Hub Spacing 100mm
Hub Spoke Type J-bend
Hub Weight 150g
Position Front
Primary Color Black
Rotor Mount 6-bolts
Skewers Included Yes
Freehub Body Shimano Road 11

Product Identifiers

Vendor Item # 00.2018.013.000
UPC 710845784705

Frequently Asked Questions

Which freehub body do I need for my cassette?

Choose the XD-R freehub for SRAM XDR/XD cassettes (common on SRAM 11/12-speed setups) or the Shimano-compatible freehub variant for Shimano/SRAM Hyperglide cassettes. Check the listed SKU to confirm which freehub type is included before ordering.

Can I convert the hub between axle standards?

Yes. The 900 hubs use interchangeable end caps to convert between QR, 12mm, and 15mm thru-axle standards. Swap end caps to match fork or frame spacing without replacing the entire hub.

Are the SPEEDBALL bearings serviceable?

SPEEDBALL bearings are sealed for longevity and low maintenance; they’re designed to minimize ingress of water and dirt. While not intended for frequent disassembly, you can replace bearings or service the hub’s axle/end cap assembly at regular intervals or if you notice play or roughness.

Is the hub compatible with Boost spacing?

Yes — some 900 Disc variants are available in Boost spacing. Confirm the specific SKU (Boost vs. non-Boost) and spoke count when ordering to match your frame and wheel build.

What maintenance should I expect for these hubs?

Regular checks for bearing smoothness and play are recommended every few hundred miles or after wet/muddy rides. Keep the end caps and freehub clean and periodically inspect for wear. Replacing sealed bearings or servicing the freehub body as needed will keep performance consistent.

Will this hub work for wheelbuilding?

Yes — the 900’s multiple spoke-count options (24H, 28H) and straight J-bend spoke compatibility make it friendly for custom wheelbuilders. Its aluminum shell and standard flange geometry are designed to support durable, responsive wheel builds.

Buying Guide

When choosing a disc hub, prioritize compatibility first: match axle spacing, freehub body (XD-R vs Shimano), rotor mount, and spoke count to your frame and wheelset. Decide whether you need the Boost option and verify the hub drilling (24H or 28H) to pair with your rims. Consider performance priorities: if you want instant engagement for technical, punchy riding, hubs with fast engagement systems like SRAM's DOUBLE TIME are valuable. For low maintenance and longevity on mixed-terrain rides, sealed bearings such as SPEEDBALL deliver consistent rolling and protection from the elements.

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