Shimano CS-HG800-11 11-Speed 11-34 Cassette

$114.99 AUD

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The Shimano CS-HG800-11 11-Speed 11-34T Cassette is a durable wide-range drivetrain upgrade that gives road, endurance and gravel riders smoother Shimano shifting, easier climbing gears and excellent value for Brisbane hills, Queensland endurance routes and everyday Australian cycling conditions.

CS-HG800-11 Features

Wide 11-34T gear range ideal for climbing, endurance riding and mixed-terrain routes
Shimano HG-EV 11-speed shifting delivers smooth, reliable gear changes
Compatible with many Shimano 11-speed road, gravel and MTB-style freehub setups
Excellent upgrade for riders wanting easier gearing without moving to a full drivetrain replacement
Strong choice for road bike service, cassette replacement and climbing gear upgrades

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SKU: CS-HG800-11
Barcode: 689228768833

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Technical Specifications

Product Name: Shimano CS-HG800-11 Cassette
Series: Shimano Ultegra-level / HG800 series
Product Type: 11-speed cassette
Cassette Ratio: 11-34T
Speed: 11-speed
Gear Combination: 11-13-15-17-19-21-23-25-27-30-34T
Cassette Type: HG-EV
Chain Compatibility: Shimano HG 11-speed chains
Freehub Compatibility: Shimano HG-style freehub bodies
Road Freehub Use: Compatible with Shimano 11-speed road freehubs using the correct setup
MTB / 10-Speed Road Freehub Use: Designed to fit many Shimano 8/9/10-speed HG freehub bodies when used correctly
Sprocket Material: Steel sprockets
Spider / Carrier: Lightweight sprocket carrier on selected sprocket groupings
Recommended Rear Derailleur: Shimano 11-speed rear derailleur with suitable 34T capacity, commonly GS medium cage road derailleurs or compatible gravel/MTB-style derailleurs
Recommended Use: Endurance road riding, climbing, gravel riding, all-road cycling, touring, commuting, indoor trainer setups and drivetrain servicing
Best Bike Type: Endurance road bikes, gravel bikes, all-road bikes, touring bikes, commuter road bikes and Shimano 11-speed road bikes needing easier climbing gears
Approximate Weight: Around 335g, depending on production version
Colour / Finish: Shimano series finish

Practical Compatibility Notes

Best matched with Shimano 11-speed drivetrains.
Check rear derailleur capacity before fitting, especially if upgrading from an 11-28T or 11-30T cassette.
A longer chain may be required when switching to 11-34T.
Rear derailleur B-screw adjustment and indexing should be checked after installation.
Professional drivetrain setup is recommended for best shifting performance.

HG-EV 11-Speed Shifting

Shimano’s HG-EV cassette design is engineered to give smoother gear transitions across a wide 11-speed range. The tooth profiles and shift ramps help the chain move cleanly between sprockets, even when climbing or changing gear under moderate load.

Wide-Range 11-34T Climbing Gear

The 34T largest sprocket gives riders a noticeably easier climbing gear compared with common 11-28T or 11-30T road cassettes. This is especially useful for long climbs, loaded rides, endurance events and riders wanting to reduce strain on steep gradients.

Durable Steel Sprockets

The cassette uses steel sprockets for strong wear life and dependable everyday performance. This makes it well suited to high-mileage riders, commuter bikes and gravel riders who want durability rather than ultra-lightweight race-only parts.

Shimano Refined Gear Progression

The 11-34T spread balances a fast 11T top gear with lower climbing gears, making it versatile for riders moving between fast road sections, rolling terrain and steep climbs.

Broader Freehub Practicality

One of the key benefits of the CS-HG800-11 is its practical fitment flexibility. It is often used to run an 11-speed wide-range cassette on wheels and trainers that use standard HG-style freehub bodies, making it popular for road, gravel and indoor trainer setups.

Excellent Value Upgrade

For riders wanting easier gearing, the CS-HG800-11 is often a far better value upgrade than replacing a full groupset. Pairing this cassette with a fresh 11-speed chain and correct derailleur setup can dramatically improve ride feel and climbing confidence.

Cassette Fitment

Speed: 11-speed
Ratio: 11-34T
Largest Sprocket: 34T
Smallest Sprocket: 11T
Freehub Type: Shimano HG-style freehub
Chain Type: Shimano-compatible 11-speed chain
Recommended Rear Derailleur: Medium cage Shimano road derailleur or compatible long-capacity derailleur

Ratio Use Guide

11T

Fast descending, sprinting and high-speed bunch riding

13T to 23T

Main cruising and rolling-road gears

25T to 30T

Moderate climbing and endurance riding

34T

Steeper climbs, tired legs, long endurance days and mixed-surface gradients

Fit Checklist Before Purchase

Before ordering, confirm:

Your drivetrain is 11-speed
Your wheel or trainer uses a Shimano HG-compatible freehub
Your rear derailleur can handle a 34T cassette
Your chain is not too short for the larger cassette
Your chain is not excessively worn
Your derailleur hanger is straight
Your shifting is adjusted after installation

Fit Recommendation

If upgrading from a smaller cassette, such as 11-25T, 11-28T or 11-30T, we recommend fitting a new chain and checking rear derailleur capacity. A professional drivetrain service will ensure correct chain length, B-tension and indexing.

The Shimano CS-HG800-11 is best suited to riders who want easier climbing gears, reliable Shimano shifting and strong drivetrain durability without upgrading to a completely new groupset.

Best Suited For

Endurance road cyclists
Gravel and all-road riders
Riders wanting easier climbing gears
Shimano 11-speed road bike owners
Commuters carrying bags or riding hilly routes
Touring cyclists needing lower gearing

Product Care

Clean the cassette regularly with bike-safe drivetrain cleaner.
Avoid excessive degreaser near hub bearings and freehub seals.
Re-lubricate the chain after cleaning.
Replace the chain before it becomes excessively worn to extend cassette life.
Inspect cassette teeth for shark-fin wear, skipping or rough shifting.
Replace cassette and chain together if both are heavily worn.
Use the correct cassette lockring tool and torque during installation.
Check rear derailleur indexing after fitting a new cassette.
Keep the cassette clean after wet rides, dusty roads or indoor trainer sessions.
Have drivetrain noise diagnosed early to prevent chain, cassette and chainring damage.

Warranty Information

Warranty coverage is subject to Shimano or retailer terms and conditions.
Warranty generally applies to manufacturing defects in materials or workmanship.
Normal wear, poor lubrication, corrosion, incorrect installation, crash damage, drivetrain incompatibility and misuse are generally not covered.
Cassette lifespan depends on chain maintenance, weather exposure, rider power, terrain, lubrication habits and cleaning frequency.
Professional installation is recommended for correct fitment, lockring torque, chain sizing and derailleur adjustment.

Product SKU

11-34T: CS-HG800-11

Barcode (GTIN/EAN)

11-34T: 689228768833

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