Wheels Manufacturing Dropout 101
Dropout 101
Dropout 101
Wheels Manufacturing

Wheels Manufacturing Dropout 101

In Stock

Dropout 101 is a direct-fit replacement derailleur hanger for Cervélo frames. CNC-machined from lightweight aluminum to restore alignment and reliable shifting.

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Product Details

Overview & Technology

Wheels Manufacturing Dropout 101 is a precision replacement derailleur hanger made to the exacting standards expected by Cervélo owners. The hanger is CNC-machined from high-strength aluminum alloy and finished to resist corrosion while keeping weight to a minimum (0.05 lb / ~23 g), so you get a durable part without adding bulk to your frame. Why it matters: a bent or damaged hanger is the most common cause of poor indexing and unpredictable shifting. The Dropout 101 restores the OEM geometry and load path so your rear derailleur tracks correctly, protecting the derailleur and drivetrain under road loads.

Key Features & Construction

This hanger is manufactured from CNC-machined 6061-T6 aluminum (anodized finish) for a balance of stiffness, strength, and light weight. The precise machining yields tight tolerance mounting faces and accurate derailleur pivot placement that matches Cervélo's original specifications (#101). Additional details: the design is a bolt-on replacement with the original mounting footprint, includes the Wheels Manufacturing part DROPOUT-101 (Product #270392), and ships in compact dimensions (3" x 3" x 0.3") — ideal for keeping a spare on hand or in a travel kit.

Fit, Compatibility & Installation

The Dropout 101 is a direct-fit hanger for Cervélo frames that use the #101 hanger profile. It replaces the OEM hanger without modification on compatible frames; confirm compatibility by matching the hanger shape and mounting hole pattern to your current part. Manufacturer Part #: DROPOUT-101, Wheel Manufacturing product number 270392. Installation tips: mount with the original hardware where possible, tighten to the frame maker's torque specs, and avoid overtightening. After installation, check derailleur alignment with a hanger alignment tool and index the gears to ensure crisp shifting.

Who This Hanger Is For

Road riders and bike mechanics who own Cervélo frames will find the Dropout 101 an essential spare or replacement item. It's ideal for commuters, club riders, and racers who need a precise, durable solution to restore factory shift performance after a crash or hanger failure. If you carry spares for travel or race day, the Dropout 101 is compact and lightweight enough to stash in a saddle bag or tool roll and gives peace of mind that a bent hanger won't end your ride.

Key Features

  • ✓ Direct-fit replacement for Cervélo frames using #101 hanger profile
  • ✓ CNC-machined 6061-T6 aluminum for strength with minimal weight
  • ✓ Anodized finish resists corrosion and road debris wear
  • ✓ Precise OEM-matching geometry restores accurate shifting
  • ✓ Compact, travel-friendly shipping size and spare part weight
  • ✓ Wheels Manufacturing part DROPOUT-101, product number 270392
  • ✓ Easy bolt-on installation — use original hardware where possible

Specifications

Misc #101, Cervelo

Product Identifiers

Vendor Item # DROPOUT-101
UPC 836572006221

Frequently Asked Questions

How do I know if this hanger fits my Cervélo frame?

Compare your existing hanger to the Dropout 101 by matching the mounting bolt pattern and the overall shape—this hanger is the #101 profile used on specific Cervélo models. If your current hanger is stamped #101 or your dealer parts list shows DROPOUT-101, it's the correct fit.

What material is the Dropout 101 made from?

The Dropout 101 is CNC-machined from 6061-T6 aluminum and typically finished with an anodized coating. That combination gives high tensile strength and corrosion resistance while keeping the part light.

Can I install this hanger myself?

Yes — installation is straightforward for anyone comfortable with basic bike mechanics. Use the original mounting hardware when possible, tighten bolts to the frame manufacturer's torque specifications, then check and realign the hanger with an alignment tool if needed.

Will replacing the hanger fix my shifting problems?

If shifting issues are caused by a bent or damaged hanger, replacing it with the Dropout 101 will restore correct derailleur geometry and usually fix indexing problems. If issues persist, inspect the derailleur, cable/hose routing, and cassette/chain wear.

Should I use threadlocker when installing the hanger?

Some riders use a small amount of medium-strength threadlocker on the mounting bolt to prevent loosening. Follow Cervélo's recommendations where available and avoid overusing threadlocker so future removal remains straightforward.

Do you ship this as a spare for traveling?

Yes — the Dropout 101 is compact (3" x 3" x 0.3") and light (0.05 lb), making it an ideal spare to carry for travel, racing, or bikepacking support kits.

Buying Guide

When buying a replacement derailleur hanger, the two most important factors are fit and material. Choose a hanger that explicitly lists compatibility with your frame model or matches the OEM profile number (in this case, #101 for many Cervélo frames). A CNC-machined aluminum hanger offers the best compromise between strength, weight, and precision for road use. Also consider carrying a spare when you travel or race — hangers are small, inexpensive, and often the difference between finishing a ride and walking home. Always inspect the frame mounting surface for damage and, after installation, check alignment with a derailleur hanger tool to ensure crisp shifting and drivetrain safety.

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