SRAM PG-850 MTB
SRAM

SRAM PG-850 MTB

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The SRAM PG-850 is an 8-speed MTB cassette (11-32T) with PowerGlide II tooth profiling, chrome-plated steel sprockets and a steel lockring — built for reliable, low-maintenance shifting on trail and cross-country bikes.

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Product Details

PowerGlide II technology — built for crisp, confident shifts

PowerGlide II uses optimized tooth profiling and shift ramps to deliver fast, positive shifts across the full 8-speed range. The PG-850's cog shapes are engineered to ease chain entry and exit under load, so climbs, punchy accelerations and technical sections shift with minimal effort. The cassette pairs chrome-plated steel sprockets with a robust steel lockring for a balance of durability and corrosion resistance. The chrome finish resists wear and grime, extending service intervals for riders who spend more time in the mud than the wash bay.

Key features and real-world benefits

Rugged steel construction: All sprockets are made from hardened steel with a chrome finish that stands up to rock strikes, grit and heavy use—ideal for trail and all-mountain riders who need dependable drivetrain longevity. Practical weight and wide range: The 11-32T gear spread (cogs: 11-13-15-17-20-23-26-32) gives a versatile climbing-to-cruising ratio while keeping weight reasonable for an 8-speed cassette. Expect smooth, consistent engagement and long wear life even in mixed conditions.

Fit, compatibility and installation notes

The PG-850 is an 8-speed Shimano/SRAM HG-pattern cassette and installs on standard HG freehub bodies. It works with any 8-speed shifter/derailleur/chain combination — match it to an 8-speed chain for optimal shifting and wear characteristics. Some modern hubs with 9/10/11-speed freehub bodies may require a 1.85mm spacer when fitting an 8-speed cassette; always check your hub's documentation. The cassette's steel construction tolerates routine torque and heavy use, but use a torque wrench for lockring installation and a fresh lockring to ensure proper preload.

Who this cassette is for

The PG-850 is aimed at mountain riders running 8-speed drivetrains who need a dependable, budget-friendly cassette that won't fail mid-ride. It's a great OEM replacement or upgrade for older hardtails, trail bikes and commuter MTBs where durability and consistent shifting matter more than ultra-low weight. Gravel and mixed-surface riders on 8-speed setups will also appreciate the wide 11-32T range and rugged steel construction — a sensible choice for riders who prioritize reliability and low maintenance over marginal weight savings.

Key Features

  • ✓ PowerGlide II tooth profiling for faster, more reliable shifts
  • ✓ Chrome-plated steel sprockets resist corrosion and extend service life
  • ✓ 8-speed, 11-32T range ideal for climbing and varied trail terrain
  • ✓ Steel lockring for durable, secure cassette mounting
  • ✓ Compatible with Shimano/SRAM HG freehub bodies (8-speed)
  • ✓ Cog pattern 11-13-15-17-20-23-26-32 for even cadence steps
  • ✓ Robust construction suited to trail, commuter and hardtail MTBs

Specifications

Cassette Technology PowerGlide II
Cassette Weight 268g (11-28T)
Cog Details 11-13-15-17-20-23-26-32
Cog Material Steel
Finish Chrome
Range 11-32T
Speed 8

Product Identifiers

Vendor Item # 00.0000.200.396
UPC 710845003967

Frequently Asked Questions

Is the SRAM PG-850 compatible with Shimano drivetrains?

Yes. The PG-850 uses the standard Shimano/SRAM HG spline pattern and is compatible with Shimano 8-speed shifters, derailleurs and chains. For best performance, pair it with a dedicated 8-speed chain and adjust limit screws and B-tension for correct indexing.

Will this fit my hub's freehub body?

The PG-850 fits standard HG freehub bodies. On some hubs that are fitted for 9/10/11-speed cassettes you may need a 1.85mm spacer for perfect alignment—check your hub manual or ask a mechanic if unsure before installation.

How durable is the chrome plating and steel construction?

The chrome-plated steel sprockets offer strong wear and corrosion resistance compared with raw steel. While heavier than aluminum or high-end alloy cassettes, the PG-850's steel construction is extremely durable and well suited to muddy, rocky or high-mileage use.

Can I upgrade to a larger cassette range without changing my derailleur?

The 11-32T range is moderate; whether you can go larger depends on your derailleur's maximum cog capacity and cage length. Most standard mountain derailleurs will handle 32T with proper B-tension adjustment, but check your derailleur specs before changing ranges.

What chain should I use with this cassette?

Use a dedicated 8-speed chain (narrower than 9/10-speed chains). Matching an 8-speed SRAM or Shimano chain ensures correct pitch and plate thickness for smooth, long-lasting shifts and reduced wear on the sprockets.

How heavy is the 11-32T variant?

SRAM lists a 268g weight for the 11-28T version; the 11-32T layout is slightly heavier due to the larger sprocket and spacing. Expect only a small weight increase while gaining a wider gear range for climbing.

Buying Guide

When choosing an MTB cassette consider speed compatibility, gear range, material and intended use. For durable, low-maintenance trail use an 8-speed steel cassette like the PG-850 gives excellent longevity and predictable shifts without the higher cost of lighter alloy designs. Match the cassette to your freehub and chain: the PG-850 requires an HG-pattern freehub and an 8-speed chain for best performance. Choose gear ranges (e.g., 11-28, 11-32) based on how often you climb versus sprint — wider ranges help climbing but may require derailleur capacity checks.

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