Wheels Manufacturing DROPOUT-670

$40.50

In Stock

Precision CNC-machined DROPOUT-670 derailleur hanger for Trek frames using the 5mm thru-skew axle system. Durable 6061 aluminum, black anodized finish, includes mounting hardware.

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Product Details

Overview & Technology

DROPOUT-670 by Wheels Manufacturing is a CNC-machined derailleur hanger engineered as a direct replacement for Trek frames that use the 5mm thru-skew axle system (Trek part W5260077). Machined from 6061 aluminum with a black anodized finish, this hanger balances strength, precision and corrosion resistance to protect your frame and drivetrain in everyday riding and light crashes. The single-piece construction and tight CNC tolerances ensure consistent derailleur alignment and repeatable performance after installation. Fasteners are included, and the hanger attaches to the frame with one M4x14mm flat head screw for a clean, secure fit. Small shipping footprint (1.8" x 1.2" x 0.75") and lightweight design (0.1 lb) make it easy to carry as a spare on longer rides or in your toolkit.

Key Features & Benefits

Material and finish: 6061 aluminum (commonly referred to as 6061-T6 in cycling parts) provides a favorable strength-to-weight ratio and resists fatigue. The black anodized surface adds corrosion protection and a factory-fresh look that matches most frames. • Exact fit: Designed to match Trek W5260077 geometry and hole locations for simple swap-in replacement. • Included hardware: Ships with the required M4x14mm flat head screw so you can install immediately. • Serviceability: Because it’s a replaceable hanger, it’s sacrificial — protects expensive frame stays and saves you from costly repairs after a derailleur impact.

Fit, Compatibility & Installation

This hanger is specifically made for frames using the Trek 5mm thru-skew axle system and lists Trek part number W5260077 as the equivalent. Before ordering, confirm your frame uses the 5mm thru-skew axle and that the existing hanger matches the DROPOUT-670 mounting pattern. The unit attaches to the frame with a single M4x14mm flat head screw (included) and installs in minutes with basic tools. For installation, align the hanger in the dropout and tighten the M4 mounting screw to the manufacturer's recommended torque (typically 3–5 Nm for M4 screws on aluminum threads). After installation, check derailleur alignment and shift through the cassette to confirm indexing; a quick hanger alignment check with a straight edge or alignment tool is recommended if shifting feels off.

Who This Hanger Is For

The DROPOUT-670 is ideal for road riders and mechanics who own Trek frames built around the 5mm thru-skew axle system and need a reliable, OEM-fit replacement hanger. It’s perfect for cyclists who value a precision-machined part that keeps derailleur geometry correct without costly frame repair. It’s also a smart buy for bike shops and travelling riders who like to carry a lightweight spare to avoid being stranded with a bent or broken hanger on the road. If you race, commute, tour, or just enjoy spirited weekend miles on a compatible Trek frame, this hanger provides proven durability and simple serviceability.

Key Features

✓ CNC-machined 6061 aluminum for strength and precise fit
✓ Black anodized finish for corrosion resistance and aesthetics
✓ Direct replacement for Trek part W5260077 with matching geometry
✓ Attaches with one M4x14mm flat head screw (fastener included)
✓ Designed for frames using the Trek 5mm thru-skew axle system
✓ Lightweight, compact spare — ships at just 0.1 lb
✓ Single-piece construction preserves derailleur alignment
✓ Ideal sacrificial part to protect frame in impacts

Specifications

Misc

Trek

Product Identifiers

Vendor Item #	DROPOUT-670
UPC	810124712471

Frequently Asked Questions

Will this hanger fit my Trek frame?

DROPOUT-670 is made to replace the Trek part W5260077 and fits frames that use the Trek 5mm thru-skew axle system. Confirm your current hanger matches W5260077 or that your frame uses the same 5mm thru-skew specification before purchasing.

Are the mounting fasteners included?

Yes. The hanger ships with the required M4x14mm flat head screw so you can install it right away. If your frame uses any threadlocker or special washers, reuse those from your original hardware if present.

What tools and torque do I need for installation?

Install with a straight pick-up and an appropriately sized hex driver or bit for the M4 flat head screw. Tighten to typical M4 torque for aluminum threads, generally between 3–5 Nm. Avoid over-torquing to prevent thread damage in the frame.

Can I realign a bent hanger or should I replace it?

If a hanger is mildly bent, a professional alignment tool can often straighten it back into spec. However, DROPOUT-670 is inexpensive and intended to be a sacrificial part—replacement is recommended if the hanger is significantly bent, cracked or the mounting threads are damaged.

Is the black finish durable?

The black anodized finish provides good wear and corrosion resistance for normal road use. Anodizing protects the 6061 aluminum surface, but the finish can show scratches after impacts—functionality is unaffected even if cosmetic wear appears.

Can I use this hanger with disc and rim brake versions of my wheelset?

Hanger compatibility is determined by the frame/dropout and axle standard rather than brake type. As long as your frame uses the Trek 5mm thru-skew axle system and the original hanger matches W5260077, this hanger will work with both disc and rim brake setups that the frame supports.

Buying Guide

When buying a replacement derailleur hanger, compatibility is the most important factor — match the hanger to your frame's axle system and original hanger part number. Look for CNC-machined 6061 aluminum hangers with anodized finishes for the best balance of weight, strength, and corrosion resistance. Also consider serviceability: choose a hanger that comes with hardware and can be easily swapped in the field. Keep a spare on longer rides, and have a hanger alignment tool at home or in the shop to ensure precise shifting after installation.

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