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We are excited to introduce our first-ver Special Edition OSPW RS. The new Argent and Niro version bring a clean aesthetic and a distinct graphic element to out OSPW RS cage design.
The dark Niro design is paired with Black ALPHA disc Pulley Wheels, while the silvery Argent design is matched with Silver ALPHA Disc Pulley Wheels.
With our OSPW RS for Shimano 105 7150 series groupsets, we're lifting the OSPW into the future with a distinctly modern and angular design. The updated design brings balance and refinement to the OSPW system allowing it to blend seamlessly into the contemporary design trends of bikes and groupsets — making up the whole of which the OSPW system is part.
ADR is a patent-pending technical feature that is based on a unique combination that makes it virtually impossible for debris toe enter the bearing.
It consists of a new dust cover design that sits safely anchored in a groove in the pulley wheel, thereby completely enclosing the bearing. this is paired with a bladed groove structure that surrounds the dust cover, which dynamically extracts debris form the pulley wheel when it's rotating.
ADR has been developed in a constant pendulum between our R&D department, the CeramicSpeed test lab and field testing conducted by a select group of our professional off-road teams.
For our new OSPW RS, we're offering version fitted with the ultra-durable ALPHA Disc Pulley Wheel first introduced with out OSPW X for Eagle Transmission.
The ALPHA Disc features a two-piece construction. A separate narrow-wide tooth profile produced in a composite material that offers prolonged wear protection and noise reduction. Aas well as a solid aluminium disc that eliminates the potential of external objects getting stuck between the spokes of the pulley wheel, while adding strength and stiffness to the Pulley Wheel design.
The first iteration of out solid disc pulley wheel design were tested in the field during the CycloCross World Cups a couple of year ago. During the 2022 CycloCross season, our sponsored team Tormans used the solid disc design extensively and provided valuable feedback on its ability to provide mud clearance in the worst of conditions.
The new design for the OSPW RS isn't solely a visual update. The cage itself has been reinforced to offer new levels of strength and durability.
In the box:
| Discipline | Road, Gravel, and Cross |
| SKU | 115741 |
| Net weight | 101.0 g |
| Gross Weight | 299 g |
| Pulley Material | Aluminium |
| Derailleur Brand | Shimano |
| Derailleur Model | 105 7150 |
