Rotor 39T (53&54) BCD110X4 12-11S Inner Round Chainring

Updated Inner Gearing for Modern Road Drivetrains

High-Speed Ring Pairing
Fast Front Shifting
Efficient Round Profile

₹5,100

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Delivery estimate

The Rotor 39T (53&54) BCD110x4 12-11S Inner Round Chainring is designed for fast road riding and performance-focused setups. Its 39-tooth size supports efficient cadence during racing, group rides and sustained efforts.

Matched Outer Ring Options: This inner chainring is developed to pair with compatible 53T or 54T outer chainrings. Using the intended combination helps maintain accurate front shifting and consistent drivetrain operation.

Consistent Round Profile: The conventional round shape provides predictable resistance throughout each crank rotation. It suits riders who prefer a familiar pedalling feel and direct power delivery across changing speeds.

Modern Road Compatibility: The 110 mm four-bolt chainring is made from aluminium and supports compatible 11 and 12-speed drivetrains. It works with suitable Rotor BCD110x4 crank systems and selected Shimano Dura-Ace and Ultegra road cranksets.

Rotor 39T (53&54) BCD110x4 12-11S Inner Round Chainring combines close-ratio gearing, dependable shifting and familiar round-ring performance.

Specifications

Recommended Use	Road
Position	Inner
Chainring Shape	Round
Drivetrain Configuration	2x
Speed Compatibility	11-Speed and 12-Speed
Material	Aluminium
Manufacturing	CNC-Machined

Compatible Rotor Interfaces	BCD110x4 Spider and INspider Power Meter
Compatible Shimano Cranksets	Dura-Ace FC-R9200, FC-R9200-P and Ultegra FC-R8100
Bolt Circle Diameter	110 mm
Bolt Pattern	4-Arm
Compatible Outer Chainrings	53T, 54T
Chainring Size	39T
Color	Black

Features

High-Speed Ring Pairing: Designed for compatible 53T and 54T outer chainrings.
Fast Front Shifting: Refined profiling supports smooth and accurate gear changes.
Efficient Round Profile: Provides consistent gearing throughout every pedal rotation.
Rigid Alloy Construction: CNC-machined aluminium supports dependable power transfer.
Modern Four-Arm Fit: Suits compatible Rotor and Shimano BCD110x4 crank systems.

Warranty and support

Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.

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Shipping and returns

We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy

Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy