Truvativ 9 Speed Alloy 64mm BCD

$20.00

In Stock

Truvativ 22T inner chainring for 9-speed MTB triples with 64mm 4-bolt BCD. Precision-machined aluminum, black anodized finish for reliable shifting and long life.

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Product Details

Overview & Technology

Truvativ 22T 9-speed inner chainring is a purpose-built replacement for MTB triple cranksets using a 64mm, 4-bolt BCD. Designed to the SRAM/Truvativ spec (SRAM Model ID: CR-MLEG-64-A1, MPN 11.6215.089.000), this 22-tooth ring restores your low gear for steep climbs and loaded rides without breaking the bank. It ships in a compact, lightweight package (5" x 5.2" x 0.5", 0.21 lb) and comes in a durable black finish ready for installation. The ring is precision-machined from aluminum and finished with a hard black coating to resist corrosion and wear. The tooth profile is optimized for 9-speed chains, delivering smooth chain entry and exit on the inner position of triple crank systems. For riders repairing older or heavily used drivetrains, this ring provides consistent engagement and predictable shifting under load.

Key Features & Benefits

Reliable construction: CNC-precision aluminum machining plus a protective black finish keeps weight low while providing dependable wear resistance in real-world trail conditions. The material choice balances stiffness and durability so the ring won't flex under load. Speed and tooth profile: The 22-tooth geometry and 9-speed specific tooth shaping ensure smooth transitions and improved chain retention on the inner position. Additional benefits include an exact 64mm 4-bolt BCD for secure mounting and compatibility with common MTB triple cranksets. • 22 T teeth tuned for 9-speed chain widths • 64mm 4-bolt BCD — standard fit for many Truvativ/SRAM triple cranks • Lightweight aluminum construction with corrosion-resistant finish • Inner-ring profile optimized for reliable low-gear engagement

Fit, Compatibility & Installation

This chainring fits 4-bolt crank arms with a 64mm BCD and is intended as the inner ring on triple cranksets. It is compatible with 9-speed drivetrains and is offered in variants labeled for 8-9-10 speed, so be sure to match the ring to your chain width. Confirm your crank BCD and bolt pattern before purchase — 64mm BCD is most common on older or triple-specific MTB cranks. Installation notes: use the correct length chainring bolts and tighten to your crank manufacturer's torque specs. Ensure the ring is mounted in the correct orientation (inner face toward the crank spider) and check chainline after installation. If your chainring shows heavy wear or hooked teeth, replace the worn outer rings or cassette as needed to prevent premature wear.

Who It's For

This Truvativ 22T inner chainring is ideal for mountain riders who run triple chainsets and need a reliable low gear for steep climbs, technical ascending or loaded bikepacking days. It's especially useful for owners of older or budget-minded MTBs that still use a 4-bolt 64mm BCD standard. Mechanics, home wrenchers and trail riders who prefer straightforward, proven components will appreciate the simple compatibility and serviceability of this ring. It's a smart spare part for shop mechanics and commuter or recreational riders who want to keep their drivetrain shifting smoothly without replacing the entire crankset.

Key Features

✓ 22-tooth inner ring tuned specifically for 9-speed chain widths
✓ Standard 64mm 4-bolt BCD fits many Truvativ/SRAM triple cranks
✓ Precision-machined aluminum for low weight and high stiffness
✓ Black corrosion-resistant finish for long-lasting trail use
✓ Optimized tooth profile for smooth shifting and chain retention
✓ Direct OEM fit — SRAM Model ID CR-MLEG-64-A1 / MPN 11.6215.089.000

Specifications

BCD	64
Chainring Bolts	4
Teeth	22
Material	Aluminum
Position	Inner
Primary Color	Black

Product Identifiers

Vendor Item #	11.6215.089.000
UPC	710845413797

Frequently Asked Questions

Will this fit my crankset?

This ring fits cranksets that use a 64mm, 4-bolt BCD and are designed for a triple setup. Confirm your crank's BCD and bolt pattern before buying. If your crank is a compact or 5-arm spider, this ring will not be compatible.

Is this compatible with 8- or 10-speed chains?

The tooth profile is optimized for 9-speed chains, but a listed 8-9-10sp variant indicates cross-compatibility with similar chain widths. For best shifting performance, match the ring to your drivetrain speed when possible.

What chainring bolts do I need?

Use chainring bolts sized for a 4-bolt 64mm BCD crank spider. Bolt length depends on crank arm thickness and whether you stack spacers; most stock M5 bolts used on Truvativ/SRAM cranksets are suitable. Always torque to the crank manufacturer's specification.

Can I run this as an outer ring?

No. This ring is manufactured and profiled as an inner chainring for triple drivetrains. Mounting it as an outer ring can produce poor shifting, premature wear, and chain drop issues.

How long will the ring last?

Longevity depends on riding conditions, maintenance, and drivetrain wear. Proper cleaning, lubrication, and pairing with a healthy chain and cassette will extend life. Replace the chain if it shows significant stretch to avoid accelerated ring wear.

Is this an OEM Truvativ part?

Yes — this is the Truvativ 22T inner chainring matching SRAM Model ID CR-MLEG-64-A1 and manufacturer's part 11.6215.089.000, intended as a direct replacement part for compatible cranksets.

Buying Guide

When buying a replacement chainring, match three key specs: BCD (bolt circle diameter), tooth count, and speed compatibility. For inner rings on triple MTB cranks, a 64mm 4-bolt BCD is common — confirm your crank's BCD with manufacturer documentation or a physical measurement. Choose materials and finishes based on your riding: aluminum chainrings offer a strong, lightweight balance for most riders, while hardened steel or specialty coatings may suit heavy-mileage commuters. Always check chain wear and pair new rings with a compatible chain and cassette for best life and shifting performance.

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