Overfast Lightweight Alloy Chainring 110BCD 4-Arm

$159.00 AUD

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A precision-machined 2x road chainring set built for riders who want lower drivetrain weight, reliable front shifting, clean black styling and strong value for Australian road racing, climbing and custom bike builds.

Overfast Lightweight Alloy Chainring Features

CNC-machined 7075-T651 aluminium construction for high strength, stiffness and durability
Lightweight hollowed design helps reduce drivetrain weight without sacrificing chainring rigidity
Supplied as a matched 2x chainring pair with both outer and inner rings included
Available in 50/34T and 52/36T gearing for compact or semi-compact road setups
110BCD 4-arm fitment suits compatible modern road cranksets and spider systems

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SKU: OVF-LAC-5034
Barcode: 76244395

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Configuration: 2x chainring pair, including outer and inner chainring

Available Ratios:

50/34T
52/36T

BCD: 110 x 4

Material: CNC-machined 7075-T651 aluminium alloy

Finish: Black anodised finish

Graphics: Laser-style branding / etched graphics depending on production batch

Claimed Weight:

Approximately 159g for 50/34T
Approximately 174g for 52/36T

Design Style:

Lightweight hollowed alloy construction
Round chainring profile
Machined tooth shaping for front shifting performance
Designed for road 2x drivetrains

Compatibility Notes:

Designed for compatible 110BCD 4-arm cranksets and spiders.
Not suitable for 5-arm 110BCD cranksets.
Not suitable for direct-mount cranksets unless used with a compatible 110BCD 4-arm spider.
Always confirm crank spider shape, bolt pattern and front derailleur compatibility before purchase.
Chain length and front derailleur adjustment should be checked if changing from a different chainring size.

7075-T651 Aluminium Construction

The Overfast Lightweight Alloy Chainring uses 7075-T651 aluminium, a high-strength alloy known for excellent stiffness, tensile strength and fatigue resistance. This makes it a smart material choice for road chainrings where shifting accuracy, tooth durability and power transfer matter.

CNC-Machined Precision

The chainrings are CNC-machined for accurate tooth profiles and clean finish quality. Precise machining helps support smoother chain pickup and more reliable front shifting when the chainrings are installed correctly with a tuned front derailleur.

Hollowed Lightweight Design

The lightweight hollowed design removes unnecessary material from the chainring body while retaining structure in key load areas. This reduces weight compared with more solid alloy designs and helps the bike feel more responsive under acceleration.

Matched 2x Chainring Pair

The Overfast Lightweight Alloy Chainring is supplied as a matched inner and outer pair. Matched chainrings are important because front shifting relies on the relationship between tooth profiles, chain pickup points and the jump between inner and outer rings.

Compact and Semi-Compact Options

The 50/34T option gives riders easier climbing gears for hilly routes, endurance events and mixed terrain. The 52/36T option suits stronger riders, fast bunch rides and racing where a higher top-end gear is useful.

Black Anodised Finish

The black anodised finish gives the chainring set a clean, modern appearance that suits premium road bikes, carbon cranksets, black drivetrains and custom performance builds.

Available Ratios:

50/34T
52/36T

Fitment Details:

BCD: 110 x 4
Configuration: 2x road chainring pair
Chainring Shape: Round
Material: 7075-T651 aluminium
Claimed Weight: Approximately 159g for 50/34T
Claimed Weight: Approximately 174g for 52/36T
Position: Outer and inner chainrings included
Intended Drivetrain Type: Road 2x drivetrain

Gearing Guide:

50/34T: Best for climbing, endurance road riding, hilly terrain and riders wanting a practical compact setup
52/36T: Best for fast group rides, racing, criteriums and stronger riders wanting more top-end speed

The Overfast Lightweight Alloy Chainring is best suited to riders who want a lighter, cleaner and more responsive 2x road chainring set without moving to a more expensive carbon or titanium chainring system.

Dedicated independent long-form reviews of the Overfast Lightweight Alloy Chainring are limited because this is a newer specialist drivetrain component.

Watch this space!

Why We Love It at Pedal Passion

It is ideal for riders refreshing a drivetrain, building a lighter road bike or adding a sharper finish to a custom build.

Product Care

Keep the chain clean and correctly lubricated.
Replace the chain before it becomes excessively worn.
Clean chainrings with bike-safe drivetrain cleaner and a soft brush.
Avoid harsh solvents that may damage anodised finishes.
Check chainring bolts regularly for correct torque.
Inspect teeth for hooking, shark-fin wear or impact damage.
Recheck front derailleur height and alignment after installation.
Avoid heavy cross-chaining under high load.
Replace cassette and chain before severe wear damages the chainrings.
Have shifting checked professionally if front shifts become noisy or inconsistent.

Warranty Information

Warranty coverage is subject to Overfast or retailer terms and conditions.
Warranty generally applies to manufacturing defects in materials or workmanship.
Normal drivetrain wear, incorrect installation, incompatible crank fitment, worn chains, crash damage, over-torqued bolts, front derailleur misadjustment and misuse are generally not covered.
Chainring life depends on chain condition, lubrication, rider power, terrain, drivetrain setup and maintenance habits.
Professional installation is recommended for correct bolt torque, chainring pairing, chain length and front derailleur adjustment.