Zipp Cognition Rr HG End Cap Assy

$40.00

In Stock

OEM Zipp drive-side rear end cap for Cognition NSW Gen2 hubs — SRAM HG fit (HU-SPP-A0). Lightweight, precision-machined replacement to restore axle alignment and hub performance.

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Product Details

Overview & Technology

Zipp Cognition Rr HG End Cap Assy is the factory replacement drive-side (right) end cap for Zipp Cognition NSW Gen2 rear hubs configured for SRAM HyperGlide (HG) freehub bodies. The assembly is engineered to match Zipp's original tolerances so axle position, bearing preload and freehub engagement remain as designed. Construction and precision: the cap assembly is CNC-machined and finished to tight dimensional tolerances for a slip-fit interface with the hub shell and axle. The combination of lightweight aluminum cap surfaces and hardened steel inserts ensures wear resistance where the cap interfaces with the freehub and axle, giving long service life and consistent engagement feel.

Key Features & Benefits

Why this end cap matters: a correct drive-side end cap maintains correct axle spacing and bearing preload — critical for crisp drivetrain feel, reliable freehub engagement and reduced side-to-side play. Using the OEM cap helps prevent premature bearing wear and protects the hub's warranty and performance characteristics. • OEM fit: Designed by Zipp for Cognition NSW Gen2 hubs (SRAM HG compatibility). • Precision machining: ensures consistent axle alignment and repeatable install tolerances. • Durable interface: metal-on-metal contact surfaces and anodized finish resist corrosion and wear.

Fit, Compatibility & Installation

This part is the drive-side (right) rear end cap for Zipp Cognition NSW Generation 2 rear hubs and matches SRAM Model ID: HU-SPP-A0. It is intended specifically for HG (HyperGlide) freehub configurations — check your hub and freehub model before ordering. Installation is straightforward for anyone comfortable with wheel servicing: remove the axle/freehub as per Zipp's hub service guide, press or thread the end cap into place depending on your hub configuration, and torque to Zipp's specified settings. Use correct tools and keep grease to the manufacturer’s recommendations to avoid contamination of sealed bearings.

Who This Is For

This end cap assembly is for road cyclists, mechanics and hobbyists who own Zipp Cognition NSW Gen2 wheelsets with SRAM HG freehubs and need an OEM-quality replacement or spare. It's ideal if your cap is damaged, lost during service, or if you want a known-good spare for race / travel reliability. Also useful for bike shops and techs: having the correct Zipp part on hand speeds hub servicing and maintains original ride characteristics — especially important for high-performance carbon wheelsets where small tolerances impact feel and safety.

Key Features

✓ OEM drive-side (right) end cap for Zipp Cognition NSW Gen2 rear hubs
✓ Specifically configured for SRAM HG (HyperGlide) freehub bodies
✓ Precision CNC-machined aluminum cap with hardened contact insert
✓ Maintains factory axle spacing, bearing preload and engagement geometry
✓ Lightweight, anodized finish resists corrosion and reduces wear
✓ Direct fit to Zipp service spec — part number 11.2018.033.002
✓ Small, lightweight part — ships quickly (0.1 lb, compact packaging)

Product Identifiers

Vendor Item #	11.2018.033.002
UPC	710845781155

Frequently Asked Questions

Is this end cap compatible with my Zipp Cognition NSW Gen2 hub?

Yes — this is the OEM drive-side rear end cap specifically for Zipp Cognition NSW Generation 2 hubs using SRAM HyperGlide (HG) freehub bodies. Confirm your hub is Gen2 and uses an HG driver before ordering.

Can I use this end cap with non-SRAM freehubs (Shimano/Campagnolo)?

This cap is produced for SRAM HG configurations and is matched to the HU-SPP-A0 model ID. While some end caps are interchangeable across systems, you should only fit caps specified for your hub and freehub type to preserve spacing and engagement. If in doubt, consult your wheel manual or a qualified mechanic.

What tools are required to install the end cap?

Installation typically requires the standard hub service tools: cone/locknut tools where applicable, a torque wrench for reassembly when specified, and basic hex sockets. Follow Zipp’s hub service instructions for the correct removal and reinstallation procedure to avoid damaging seals or bearings.

How will I know when the end cap needs replacing?

Replace the end cap if it's visibly damaged, cracked, deformed, or if you notice play on the drive side that doesn't resolve with bearing preload adjustment. Also replace lost caps or parts showing excessive corrosion that compromises fit or seal integrity.

Is this a genuine Zipp spare part and what's the part number?

Yes — this is an OEM Zipp end cap assembly. Manufacturer part number: <strong>11.2018.033.002</strong>, product number 091040. Using the correct Zipp part preserves hub performance and warranty alignment.

How much does the part weigh and how is it shipped?

The end cap ships in compact packaging with shipping dimensions approximately 4.5" x 3" x 1" and a shipping weight of about 0.1 lb. The actual part weight is only a few grams — very light and easy to carry as a spare.

Buying Guide

When buying an end cap for a high-performance wheel hub, confirm the hub model, generation and freehub interface first — in this case Zipp Cognition NSW Gen2 and SRAM HG. End caps control axle spacing and bearing preload, so OEM or manufacturer-specified parts are recommended to preserve handling and drivetrain alignment. Keep a spare cap on hand if you race, travel, or frequently service wheels. They’re small, inexpensive, and save time when a cap is lost or damaged during maintenance. If you’re unsure about fitment or installation, consult Zipp’s service documentation or a professional bicycle mechanic.

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