SRAM 104mm Alloy
104mm Alloy
SRAM

SRAM 104mm Alloy

In Stock

Replacement SRAM 33T middle chainring (104 BCD, 4‑bolt) for 10‑speed MTB triples. Lightweight aluminum construction with a durable black finish for reliable shifting on 22/33/44 setups.

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Product Details

Precision alloy construction & SRAM technology

SRAM's 33T 104 BCD middle chainring (Model ID CR-MLEG-104-A1, MPN 11.6215.188.290) is machined from lightweight aluminum for a balance of strength and low weight. The 4‑bolt, 104mm BCD layout fits classic MTB triple cranksets and is optimized for 10‑speed drivetrains. The ring's tooth profile and ramping are designed for dependable chain engagement and shifting across the 22/33/44 triple configuration. The black anodized finish protects the alloy from corrosion while keeping weight to a minimum (approx. 0.1 lb), making it ideal for trail, cross‑country and commuter riders seeking durable, predictable performance.

Key features & performance benefits

Durable aluminum alloy: Machined construction offers consistent tooth geometry and long service life without the weight penalty of steel rings. The anodized black surface increases abrasion resistance and sheds grime for cleaner shifting. 10‑speed optimized teeth: Tooth thickness and ramping are matched to 10‑speed chains for smooth up/down shifts. The middle position profile improves chain retention between big and small rings and reduces chain drop under load.

Fit, compatibility & installation notes

This chainring uses a 104mm BCD with a 4‑bolt pattern and is explicitly specified as a middle ring for SRAM 22/33/44 triple setups. It is compatible with most 10‑speed SRAM and Shimano driven MTB triples that accept 104 BCD middle rings. Verify your crank's BCD and bolt pattern before purchase. Installation requires standard chainring bolts and a torque wrench—tighten bolts to your crank manufacturer's recommended torque (typically 8–12 Nm). Because this is a middle ring, orient the ramps and shift pins as shown in your crankset manual to preserve shifting performance.

Who should buy the SRAM 104mm 33T middle chainring

If you ride an MTB with a 22/33/44 triple and run a 10‑speed drivetrain, this SRAM 33T middle ring is a direct, budget‑friendly replacement that restores crisp shifting and chain security. It's ideal for riders who need a reliable spare for trail maintenance, race prep, or commuter upkeep. Mechanics, bike shops and home wrenches replacing worn teeth or upgrading from a damaged ring will appreciate the OEM fit, accurate tooth profile, and the light weight of machined aluminum. Not recommended for modern 1x drivetrains or cranksets with non‑standard BCDs without verifying compatibility first.

Key Features

  • ✓ 33 teeth middle ring for 22/33/44 SRAM triple cranksets
  • ✓ 104mm BCD, 4‑bolt pattern — standard MTB triple fit
  • ✓ Machined aluminum for low weight and reliable durability
  • ✓ Optimized tooth profile for smooth 10‑speed shifting
  • ✓ Black anodized finish resists corrosion and abrasion
  • ✓ OEM SRAM part (Model CR-MLEG-104-A1, MPN 11.6215.188.290)
  • ✓ Approximate weight 0.1 lb — light replacement option

Specifications

BCD 104
Chainring Bolts 4
Chainring Comp. MTB triple
Teeth 33
Material Aluminum
Position Middle
Primary Color Black
Speed 10

Product Identifiers

Vendor Item # 11.6215.188.290
UPC 710845660597

Frequently Asked Questions

Will this chainring fit my crankset?

This is a 104mm BCD 4‑bolt middle chainring designed for MTB triple cranksets (22/33/44 setups). Confirm your crank's bolt circle diameter (104 mm) and that it accepts a 4‑bolt middle ring. If your crank uses a different BCD or bolt pattern, this ring will not fit.

Is this compatible with Shimano 10‑speed chains?

Yes — the ring is optimized for 10‑speed chains, so it works with both SRAM and Shimano 10‑speed drivetrains. For best performance, pair with a chain in good condition and ensure ring bolts are torqued correctly.

Can I use this ring on a 9‑ or 11‑speed system?

While a 10‑speed ring may physically work with adjacent speeds, tooth thickness and ramping are tuned for 10‑speed chains. For reliable shifting and longevity, use chainrings matched to your drivetrain's speed whenever possible.

What tools are required to install this chainring?

You’ll need the correct chainring bolts (if not reusing originals), a hex key or Torx driver matching your bolts, and a torque wrench to set bolts to the manufacturer’s recommended torque (commonly 8–12 Nm). A chainring nut tool may be required for some setups.

How do I know when to replace my chainring?

Replace the chainring if teeth are hooked, worn, or if shifting becomes noisy and imprecise despite a new chain. Also replace when you detect skip under load or after replacing a very worn chain to avoid accelerated wear on the new chain.

Buying Guide

When buying a replacement chainring, match the ring's BCD, bolt pattern, tooth count and speed rating to your existing crankset and chain. For MTB triples, common options include 104 BCD middle rings and specific tooth counts to tune climbing vs. top‑end cadence. Choose material based on your priorities: aluminum offers lighter weight and good durability for most riders, while steel lasts longer under high mileage but adds weight. Always replace worn chains before fitting a new ring to avoid premature wear.

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