CeramicSpeed OSPW RS Alpha Pulley Wheel for Shimano 9250/8150 Team Logo

Low-Friction Ceramic Bearings with Team Edition Design

Oversized Pulley Design
CeramicSpeed Bearings
Reinforced Cage Construction

₹54,000

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Color: Blalck

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The CeramicSpeed OSPW RS Alpha Team Logo Pulley Wheel System is an oversized rear derailleur cage upgrade designed for compatible Shimano Dura-Ace and Ultegra Di2 drivetrains. Developed for road cycling and triathlon, it combines CeramicSpeed bearings, solid-disc pulleys and a reinforced cage to reduce drivetrain friction. The Team Edition features oversized CeramicSpeed branding for a distinctive appearance inspired by its professional racing applications.

Efficient Drivetrain. The oversized pulley arrangement reduces chain articulation around the rear derailleur, helping minimise friction during pedalling. CeramicSpeed's Alpha Disc pulleys combine a solid aluminium body with composite teeth designed to reduce chain noise and improve wear resistance. The enclosed pulley design also prevents external objects from becoming trapped between conventional open spokes.

Reinforced Construction. The updated OSPW RS cage provides improved strength and incorporates adjustable spring tension settings for drivetrain optimisation. Integrated bearing protection helps limit contamination during riding, while the serviceable construction supports ongoing maintenance. The complete system replaces the original derailleur cage and pulley assembly on compatible Shimano rear derailleurs.

Specifications

Model	OSPW RS Alpha Team Logo
Product Type	Oversized Pulley Wheel System
Recommended Use	Road Cycling and Triathlon
Compatible Derailleurs	Shimano Dura-Ace RD-R9250 Di2, Ultegra RD-R8150 Di2
Drivetrain Compatibility	Shimano 12-Speed
Pulley Design	Alpha Disc with Team Logo
Pulley Material	Aluminium with Composite Teeth
Upper Pulley	13 Teeth

Lower Pulley	19 Teeth
Bearing Type	CeramicSpeed Ceramic Bearings
Cage Material	Carbon Fibre-Reinforced Polyamide
Spring Tension	Adjustable
Bearing Protection	Active Debris Remover (ADR)
Color	Black
Weight	102 g

Features

Oversized Pulley Design: Reduces chain articulation to help minimise drivetrain friction.
CeramicSpeed Bearings: Provide smooth, low-friction pulley rotation for efficient power transmission.
Reinforced Cage Construction: Updated cage architecture improves structural strength and durability.
Adjustable Spring Tension: Allows spring tension to be configured for the drivetrain setup.
Team Edition Branding: Features oversized CeramicSpeed logos on the pulley discs.
Serviceable Construction: Designed for routine cleaning and maintenance.

Technologies

Alpha Disc Pulleys: Two-piece construction combining solid aluminium discs with narrow-wide composite teeth for reduced chain noise, improved wear resistance and protection against debris becoming trapped between spokes.
Active Debris Remover (ADR): Patented bearing protection system combining an enclosed dust cover with rotating grooves that help move contaminants away from the bearings.
Further Drive Technology: Adjustable spring tension settings allow the pulley system to be configured for compatible drivetrain requirements.

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