Zipp 177 QR End Cap
177 QR End Cap
Zipp

Zipp 177 QR End Cap

In Stock

Replacement rear 11-speed quick-release end cap for Zipp 177 hubs. CNC-machined aluminum construction, SRAM HU-SPP-A0 ID and available for both disc and rim brake 177 wheels.

Add to Cart
🚚 Fast Shipping 🔒 Secure Checkout ↩ Easy Returns

Available Options

Option Price Availability
Zipp, 177, Axle End Cap, 177 Disc Brake QR — In Stock
Zipp, 177, Axle End Cap, 177 Rim Brake QR — In Stock

Product Details

Overview & Technology

Zipp 177 QR End Cap is a precision replacement end cap engineered to the hub-level tolerances Zipp demands. CNC-machined from a high-grade aluminum alloy and finished with an anodized surface, this end cap restores the interface between your quick-release skewer and Zipp 177 hub body for reliable wheel retention and consistent bearing preload. The cap carries the SRAM model ID HU-SPP-A0 and is offered in dedicated variants for 177 disc-brake and 177 rim-brake wheels. That OEM-level fit and finish reduces play, protects hub internals from contamination, and keeps your wheel tracking true under load — essential for fast road riding and routine maintenance.

Key Features

Durable, accurate construction: CNC-machined aluminum alloy with an anodized finish resists corrosion while maintaining tight dimensional tolerances for secure engagement with the hub body. The precision fit helps avoid bearing fatigue and reduces creak or slop at the axle interface. OEM compatibility & variants: Designed around the SRAM HU-SPP-A0 standard and offered specifically for both the 177 Disc Brake QR and 177 Rim Brake QR configurations. Lightweight and simple to swap, it’s ideal for replacing a worn or damaged cap without buying a whole hub or wheel.

Fit & Compatibility

This end cap is intended for Zipp 177 hub bodies that use the SRAM HU-SPP-A0 quick-release interface. Choose the correct variant: 177 Disc Brake QR for disc-specific spacing and rotor clearance or 177 Rim Brake QR for rim-brake spacing. It is NOT compatible with thru-axle hubs or non-SRAM quick-release standards. Before ordering, verify your wheel model and note whether your 177 wheelset is the disc or rim-brake version. If you run aftermarket hub conversions or non-standard axle kits, confirm dimensions with your wheelbuilder or contact Forest Bikes for help identifying the correct cap.

Who This Is For

Road cyclists, mechanics, and fleet managers with Zipp 177 wheels who need a direct-fit replacement end cap. It’s a straightforward, cost-effective part for anyone repairing wheels after impacts, servicing bearings, or maintaining a clean quick-release interface. Wheel builders and workshops will appreciate the OEM compatibility and lightweight, serviceable design — keep a spare in the parts drawer to speed roadside fixes or quick turnaround shop repairs.

Key Features

  • ✓ CNC-machined 6061-style aluminum alloy for precise hub fitment
  • ✓ Anodized finish resists corrosion and reduces surface wear
  • ✓ SRAM HU-SPP-A0 ID ensures OEM-level compatibility with Zipp 177
  • ✓ Available in dedicated disc and rim-brake 177 QR variants
  • ✓ Restores proper bearing preload and eliminates axle play
  • ✓ Lightweight, low-profile design for minimal added mass
  • ✓ Quick, tool-free swap for rapid wheel service and repairs

Specifications

Misc 177 Disc Brake QR

Product Identifiers

Vendor Item # 11.1918.048.000
UPC 710845768576

Frequently Asked Questions

Is this end cap compatible with thru-axles?

No. The 177 QR End Cap is made specifically for quick-release (QR) hubs with the SRAM HU-SPP-A0 interface. It will not work with thru-axle hubs or axle conversion kits designed for thru-axles.

How do I know whether I need the disc or rim brake variant?

Check your Zipp 177 wheelset model — it was sold as either a disc-brake or rim-brake version. The disc variant accounts for rotor clearance and hub spacing differences; choose the matching variant to ensure correct fit and brake alignment.

Does the end cap come with mounting hardware or sold individually?

This listing is for the replacement end cap itself. Some wheel purchases include end-cap hardware, but spare caps are typically sold individually. If you need a set or additional hardware, contact Forest Bikes for bundle options.

Can I install this myself? Any special tools required?

Installation is straightforward for anyone comfortable servicing wheels: remove the skewer, press the old cap off, and press the new cap into place. No specialized tools are required, though a soft mallet or a bearing-press tool can help seat the cap evenly without marring surfaces.

How do I tell when an end cap needs replacing?

Replace end caps if you notice axle play after tightening the skewer, visible wear or cracking on the cap, or corrosion that prevents a secure fit. Replacing a damaged cap prevents premature bearing wear and keeps wheel tracking consistent.

Will this work on non-Zipp hubs using SRAM standards?

Potentially — the cap conforms to the SRAM HU-SPP-A0 quick-release interface. However, dimensional tolerances can vary between hub makers. Confirm dimensions and engagement geometry before fitting to a non-Zipp hub.

Buying Guide

When replacing hub end caps, match three things: the hub model, axle type (quick-release vs thru-axle), and brake variant (disc or rim). For Zipp wheels, always choose the cap listed for your exact 177 wheel version — the disc and rim variants compensate for different hub faces and rotor clearance. Prioritize OEM-style caps when possible: correct materials, tolerances, and seal interfaces protect bearings and ensure consistent preload. If you’re unsure, measure your hub spacing and consult a wheelbuilder or Forest Bikes customer service to avoid fitment issues.

Ready to order?

Shop with confidence at Scenders — premium cycling parts, fast shipping.

View Full Product