Wheels Manufacturing DROPOUT-444

$47.50

In Stock

CNC-machined 6061 aluminum DROPOUT-444 derailleur hanger — black anodized, made in Colorado. Direct replacement for select Marin and Polygon frames (Wheels Mfg part 270958).

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Product Details

Overview & Technology

Wheels Manufacturing DROPOUT-444 is a precision replacement derailleur hanger CNC machined from 6061-T6 aluminum and finished with a durable black anodize. Manufactured in Colorado to strict tolerances, this hanger restores derailleur alignment and protects your frame in the event of impact or drivetrain failure. The 6061 aluminum construction balances light weight with the strength needed to take the brunt of a crash instead of expensive frame tabs. The black anodized finish increases corrosion resistance and provides a smooth surface for consistent fastener torque and reliable repeatability every time the hanger is fit.

Key Features & Benefits

Designed for real-world durability: the DROPOUT-444 uses proven 6061 alloy and precision CNC machining to ensure a repeatable, true mounting surface for your rear derailleur. Consistent geometry means better shifting and fewer adjustments after replacement. Benefits at a glance: • Exact fit: factory-level tolerances for stable derailleur positioning and crisp shifting. • Corrosion resistance: black anodize protects the machined surface from wear and elements. • Crash-friendly: sacrificial hanger design helps prevent damage to the frame's dropout.

Fit, Installation & Compatibility

The DROPOUT-444 is a direct replacement hanger for specific Marin and Polygon frames — check your frame's parts list or existing hanger shape to confirm compatibility. This unit is sold as the hanger only (Wheels Manufacturing Part #270958 / DROPOUT-444); mounting hardware and axle type vary by frame and may not be included. Installation is straightforward for most home mechanics: remove the rear wheel and derailleur, unbolt the old hanger, fit the new unit ensuring clean mating surfaces, and torque fasteners to the frame manufacturer's specification. We recommend checking derailleur alignment with a hanger alignment tool after installation and re-torquing to secure shifting precision.

Who This Hanger Is For

Riders who want a reliable, OEM-quality replacement for a broken or bent hanger will appreciate the DROPOUT-444. It’s ideal for mountain cyclists who run Marin or Polygon frames and want a lightweight, precision-made part that restores shifting performance and protects the frame’s dropout. Mechanics, workshop owners, and touring riders who carry spares will like the compact size and low weight (0.05 lb) — a small, high-value spare that solves a ride-stopping problem quickly.

Key Features

✓ Precision CNC-machined from 6061-T6 aluminum for strength and lightness
✓ Durable black anodized finish for corrosion and wear resistance
✓ Manufactured in Colorado to exacting Wheels Manufacturing tolerances
✓ Direct replacement for select Marin and Polygon frames (DROPOUT-444)
✓ Part number 270958 for easy cross-referencing and ordering
✓ Extremely lightweight — approximately 0.05 lb (compact shipping size)
✓ Sacrificial design protects frame dropouts in impacts
✓ Restores drivetrain alignment for crisp, reliable shifting

Specifications

Misc	Marin, Polygon

Product Identifiers

Vendor Item #	DROPOUT-444
UPC	811079027290

Frequently Asked Questions

How do I know if DROPOUT-444 fits my bike?

Check your frame's parts list or compare the shape of your existing hanger to the DROPOUT-444 profile. This hanger is specified for select Marin and Polygon frames; confirm fit by matching Wheels Manufacturing part number 270958 or consulting your frame manufacturer.

Is mounting hardware included with the hanger?

Hangers are often sold as the replacement plate only. Hardware and axle adapters vary by frame — inspect your current hardware and purchase replacement bolts or adapters if needed. If unsure, bring the old hanger or hardware measurements to your local shop.

What tools do I need to install this hanger?

Basic tools: hex keys or Torx (depending on your frame bolts), a torque wrench, and a hanger alignment gauge for best results. Removing the rear derailleur and wheel is required; re-check derailleur indexing after installation.

Can I bend this hanger back or should I replace it?

Minor bends can sometimes be corrected with a hanger alignment tool, but repeated bends weaken the metal. For a reliable long-term solution and true derailleur geometry, replace a visibly deformed DROPOUT-444 with a new unit.

What maintenance should I do after installing the new hanger?

Clean mating surfaces, apply a small amount of anti-seize or light grease to threads (if recommended by frame maker), torque bolts to spec, and verify derailleur alignment. Test-shift through the cassette on a stand or short ride and fine-tune indexing as needed.

Buying Guide

When replacing a derailleur hanger, matching the exact part number is the most reliable way to ensure fit. Look for the Wheels Manufacturing number (270958) or the model name (DROPOUT-444) and confirm your frame make — this hanger is designed for select Marin and Polygon models. Consider keeping a spare hanger on multi-day rides or remote trail trips to avoid being stranded. Choose aluminum hangers like the DROPOUT-444 for a good balance of weight, cost, and sacrificial protection. If you frequently encounter impacts, inspect hangers regularly and replace rather than repeatedly realigning a fatigued piece.

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