SRAM X3
SRAM

SRAM X3

In Stock

The SRAM X3 long-cage rear derailleur delivers 1:1 actuation for 7/8/9-speed drivetrains, lightweight alloy construction and a 32T max cog capacity—an affordable, reliable MTB option.

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Product Details

Overview & Technology

SRAM X3 is a performance-focused, value-priced rear derailleur engineered for reliable mountain-bike shifting. It uses SRAM's classic 1:1 actuation ratio optimized for 7/8/9-speed drivetrains, delivering predictable indexed shifts and smooth chain management across the cassette. The unit features a compact, lightweight alloy main body paired with a durable long steel cage to handle wider gear ranges up to a 32T largest cog. Practical design choices—corrosion-resistant hardware and service-friendly pivot points—mean dependable performance in muddy, wet and dusty trail conditions.

Key Features & Benefits

Designed for real-world trail use: The long cage keeps chain tension stable across big gear spreads and 1x setups while the 210g weight keeps rotational mass low. A max front difference of 22T makes it compatible with common double-chainring setups and many compact triple configurations. • 1:1 actuation: Tuned for consistent indexing on 7/8/9-speed shifters. • Long steel cage: Improves chain wrap and reduces chain slap on rough trails. • Light alloy body: Keeps weight down without sacrificing strength.

Fit, Compatibility & Installation

The X3 mounts to standard derailleur hangers and is compatible with 7, 8 and 9-speed SRAM or Shimano-compatible shifters that use 1:1 actuation. It supports a maximum cog size of 32T and a maximum front difference of 22T, so double and many triple chainring configurations are supported when within those limits. Installation is straightforward: standard B-tension adjustments and limit screws tune wheel-to-derailleur spacing and end stops. The long cage variant provides extra chain capacity—ideal when fitting larger cassettes for low-end grunt or when converting to a 1x system with a wide-range cassette.

Who It's For

The SRAM X3 is aimed at riders who want dependable shifting without premium pricing: trail riders, commuters and budget-focused builds. It's a great upgrade or replacement option for older 7/8/9-speed mountain bikes and for riders running mixed-spec bikes where simplicity and reliability trump ultra-lightweight carbon components. If you ride local singletrack, light bikepacking routes, or need a serviceable spare derailleur for group rides and rentals, the X3 covers the essentials with proven SRAM actuation and durable materials at an exceptional value.

Key Features

  • ✓ 1:1 actuation tuned for reliable 7/8/9-speed indexed shifting
  • ✓ Long steel cage supports up to 32T largest cog capacity
  • ✓ Lightweight alloy main body keeps derailleur weight to 210g
  • ✓ Standard mount fits common mountain-bike derailleur hangers
  • ✓ Max front difference of 22T for many double/triple setups
  • ✓ Durable, corrosion-resistant hardware for all-weather reliability
  • ✓ Straightforward setup with standard limit screw and B-tension

Specifications

Max Front Difference 22T
Maximum Cog 32T
Primary Color Black
Cage Long
RD Weight 210g
Speed 7/8/9
Mount Standard

Product Identifiers

Vendor Item # 00.7515.050.000
UPC 710845622175

Frequently Asked Questions

Is the SRAM X3 compatible with Shimano shifters?

Yes. The X3 uses a 1:1 actuation ratio compatible with most 7/8/9-speed Shimano and SRAM shifters that follow the same cable pull standard. Confirm your shifter is a 7/8/9-speed indexed model to ensure correct indexing.

Can I run a 32T cassette with this derailleur?

Yes. The long-cage X3 supports a maximum cog of 32T. Make sure your B-tension and limit screw adjustments create proper chain wrap and clearance for smooth shifting across the cassette.

What chain capacity do I get with the long cage?

The long cage increases chain capacity to accommodate larger front chainring differences up to the specified 22T. This makes it suitable for many double-ring setups and some triples when within the stated front difference limit.

Is the derailleur suitable for aggressive enduro or downhill riding?

The X3 is built for trail and general mountain use with a focus on value and reliability. For aggressive enduro or downhill where maximum durability and clutch stabilization are required, we recommend higher-end derailleur models designed for gravity disciplines.

What materials is the X3 made from?

The X3 combines a lightweight alloy main body with a durable steel long cage and corrosion-resistant fasteners. This mix balances low weight with the strength needed for off-road use.

How heavy is the SRAM X3 derailleur?

The listed weight for the X3 long-cage derailleur is approximately 210 grams, making it a lightweight option for its price and capacity class.

Buying Guide

When choosing a rear derailleur, match the actuation ratio and speed with your shifters first—here the SRAM X3 is optimized for 7/8/9-speed 1:1 systems. Next confirm maximum cog size and total capacity: X3 supports up to 32T and a 22T front difference, so plan cassette and chainring choices around those limits. Consider whether you need a long cage for chain capacity or a short cage for slightly crisper shift feel and reduced chain slap. For trail, commuting and budget builds, the X3 long-cage offers the best balance of capacity, weight and durability.

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