CeramicSpeed OSPW RS 5‑Spoke for Shimano RD‑9250 / RD‑8150 (Black / Red / Gold / Blue)

$768.90 AUD

Taxes included. Shipping calculated at checkout.

The CeramicSpeed OSPW RS 5‑Spoke is a premium oversized pulley wheel system engineered for Shimano 12‑speed Di2 rear derailleurs, specifically Dura‑Ace RD‑9250 and Ultegra RD‑8150. Designed for riders who obsess over drivetrain efficiency and a clean, modern finish, the OSPW RS updates CeramicSpeed’s iconic pulley cage with a distinctly angular profile and a stronger, more durable structure—while keeping the unmistakable performance aesthetic that has made OSPW upgrades one of the most searched drivetrain mods in road cycling.

This 5‑spoke version is available in Black, Red, and Gold options, making it easy to match your frame, wheel decals, or groupset accents. It’s a popular upgrade through performance bike shops in Brisbane and across Queensland and Australia, especially for riders building a high‑end road bike, triathlon machine, or doing a full drivetrain service that includes chain optimisation, derailleur setup, and Di2 indexing.

Modern cage design with reinforced durability

The OSPW RS isn’t just a visual refresh. CeramicSpeed reinforces the cage structure to improve strength and long‑term reliability—ideal for riders who train year‑round, travel with their bike, or rack up high kilometres. The updated design also blends more naturally with the sharp lines of current aero road frames and contemporary Shimano Di2 derailleurs, giving your drivetrain a cohesive, premium look.

ADR (Active Debris Remover) for cleaner bearing protection

A key tech feature is CeramicSpeed’s ADR (Active Debris Remover) concept. It uses a dust cover seated into a dedicated groove in the pulley wheel to help enclose the bearing area, paired with a bladed groove structure around the cover intended to push debris away as the wheel rotates. For riders dealing with wet roads, grit, or dusty shoulder riding—common conditions in Australia—ADR is designed to reduce contamination at the bearing interface and support smoother long‑term running.

Ideal for high‑end builds and workshop installs

The OSPW RS 5‑Spoke upgrade is best fitted during a professional bicycle service or drivetrain refresh, where a mechanic can confirm compatibility, check rear derailleur alignment, set chain length correctly, and dial shifting performance. It’s also commonly paired with drivetrain efficiency upgrades such as premium chain lubricants or wax systems, new chains, and cassette checks—especially before major events or race season.