SRAM XS-797 XD
XS-797 XD
XS-797 XD
XS-797 XD
SRAM

SRAM XS-797 XD

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Race-ready SRAM XS-797 XD (XX DH Transmission) 7-speed cassette with optimized 10-24T steps, X-Sync tooth profile and setup cog for flawless shifting under load.

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Product Details

Overview & Technology

Engineered for downhill speed. The SRAM XS-797 XD (XX DH Transmission) cassette delivers narrow, consistent steps across a 10–24T range so riders can keep pedaling hard when the trail gets steep. Built around SRAM's Full X-Sync tooth profile and Transmission philosophy, this cassette is optimized to shift faster and cleaner under load — a decisive advantage when tenths of a second matter. Construction and durability: The XS-797 uses precision-machined, heat-treated steel cogs with a corrosion-resistant finish and tight manufacturing tolerances to maintain crisp, reliable engagement through heavy DH use. The unit interfaces with a traditional XD driver body and includes a Setup Cog for fool-proof indexing during installation.

Key Features

Purpose-built gear progression. The optimized 7-speed 10–24T cog pattern (10, 12, 14, 16, 18, 21, 24) provides small, consistent jumps between gears so you can stay in the powerband when sprinting out of rock sections or launching drops. Shift under load — better than before. Full X-Sync tooth profiling combined with SRAM Transmission tuning makes downshifts under heavy load faster and more secure. The cassette is designed for T-Type chain compatibility only, ensuring drivetrain refinement when paired with matching SRAM Transmission drivetrain components.

Fit & Compatibility

Hub and chain compatibility. The XS-797 is compatible with XD freehub bodies (traditional XD driver body required). It is a 7-speed Transmission cassette and is specified for use with SRAM T-Type (Transmission) chains only — mixing with standard chains can impair shifting performance and wear. Installation notes: The cassette ships with a Setup Cog to simplify indexing and is fitted like a standard XD cassette using the correct torque specs on your XD driver. Confirm freehub compatibility and use Transmission chain and derailleur components for best results; consult Forest Bikes fit guides or your mechanic if you’re uncertain.

Who It's For

This cassette is for gravity-focused riders, downhill racers, and aggressive enduro riders who demand the fastest, most predictable shifts under heavy pedaling loads. If you compete or spend full days on steep, technical runs and want minimal shift lag between important sections, the XS-797 is tailored to that need. Choose the XS-797 if you already run SRAM Transmission/T-Type components or are building a dedicated DH/enduro rig and want a compact, track-focused gear set that keeps you in the powerband when it counts.

Key Features

  • ✓ Optimized 7-speed cassette with tight 10-24T gear progression
  • ✓ Full X-Sync tooth profile for best-in-class under-load shifting
  • ✓ Designed specifically for SRAM T-Type (Transmission) chains
  • ✓ Includes Setup Cog for simple, accurate indexing during installation
  • ✓ Traditional XD driver body — fits XD freehub systems
  • ✓ Precision heat-treated steel cogs for durability in DH use
  • ✓ SRAM model ID CS-XS-797-A1, part #: 00.2418.163.000

Specifications

Cog Details 10,12,14,16,18,21,24
Range 10-24T
Speed 7
Cassette Freehub Compatibility XD

Product Identifiers

Vendor Item # 00.2418.163.000
UPC 710845928017

Frequently Asked Questions

Is the XS-797 compatible with my hub?

The XS-797 uses a traditional XD driver body and requires an XD-compatible freehub. Make sure your wheel's freehub is XD standard before purchasing. If you have a different freehub type you will need a compatible wheel or hub conversion where available.

Can I use any chain with this cassette?

No — the XS-797 is specified for SRAM T-Type (Transmission) chains only. Using a different chain type can degrade shifting performance, increase wear, and void optimal Transmission tuning.

What maintenance does this cassette require?

Routine care includes cleaning after muddy or dusty rides and inspecting for wear or damaged teeth. Use a non-corrosive degreaser and lubricate your Transmission chain per SRAM guidelines. Replace the cassette when shifting becomes noisy or chain skip occurs under load.

Will this cassette work with my SRAM derailleur?

The cassette is intended to be used within SRAM's Transmission ecosystem. It works best with Transmission-compatible derailleurs and shifters. For older or non-Transmission SRAM derailleurs, shifting may be compromised.

How much does the cassette weigh and what are the shipping dimensions?

The listed product weight is 0.5 lb. Shipping dimensions are approximately 5.4" x 5.7" x 2.8". Actual installed system weight will depend on chain and wheelset choices.

Is the Setup Cog reusable?

Yes — the Setup Cog is included to make initial indexing straightforward and can be reused if needed during drivetrain rebuilds. Keep it with your drivetrain tools for future tune-ups.

Buying Guide

When choosing a downhill/enduro cassette, prioritize gear progression, material durability, and compatibility. A tightly spaced 7-speed cassette like the XS-797 (10–24T) keeps you in the ideal cadence and power zone for short, punchy runs and technical exits. Heat-treated steel cogs trade a little weight for longevity—important when you’re pushing hard every run. Also confirm your freehub standard (XD) and opt for matching SRAM Transmission/T-Type chains and derailleurs to get reliable under-load shifts. If you're upgrading from a wider-range or mixed drivetrain, check chainline and chain length after installation to avoid cross-chaining and premature wear.

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