OSPW RS - Shifting Time

It changed the scene when it was first introduced in 2015 - and has been making waves ever since. Now, we're lifting our OSPW into the future with the introduction of the new OSPW RS for Shimano and SRAM road groupsets.

Featuring a distinct updated design, new innovative tech features, and an added level of customization the OSPW RS meets the need for personal expression and premium ride experience.

OSPW RS for Shimano (5-spoke Pulley Wheels)

OSPW RS for Shimano (ALPHA Disc)

OSPW RS for SRAM (ALPHA Disc - Team Edition)

The OSPW RS (abbreviated form of Racing Sport, with a nod to our heritage) is a statement for where we've been, and where we're going - always at the forefront.

The new OSPW RS is based around 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.

Active Debris Remover (ADR)

The OSPW RS comes available in versions equipped with the patent-pending technical feature ADR - a unique combination that makes it virtually impossible for debris to 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 from 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.

ALPHA Disc

For our new OSPW RS, we're offering versions fitted with the ultra-durable ALPHA Disc Pulley Wheel first introduced with our 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. As well as a solid aluminum 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 iterations of our solid disc pulley wheel design were tested in the field during the CycloCross World Cups a couple of years 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.

Kobe Siemons

Former Head Mechanic for Tormans CycloCross Team

"We used the first version of the solid pulleys for one season, then we got an updated pulley wheel with a bigger bearing and caps with the 'ADR function' to avoid grass and mud turning in the bearing and mud sticking to the pulley wheel.

Till now we are still using these same prototype pulleys in the heaviest circumstances and “grass races”, because it makes a huge difference for our riders to ride their bikes without a hopping gear or bad-turning drivetrain"

OSPW RS

FAQ

Get all the answers you need on the new OSPW RS in our FAQ below

Why are there different systems for Shimano Dura Ace/Ultegra and Shimano 105

The diameter of the mounting pin is smaller on the Shimano 105 (7150) derailleur interface compared to the Shimano Dura Ace (9250) and Ultegra (8150) derailleurs, and as such necessitates a different OSPW RS cage.

Why does the system not come with coated bearings?

Through development lab testing, and long-term field use, we have determined that our new ADR technology protects the bearings so well, that we can use our core hand-built hybrid ceramic bearing, built with stainless steel races, all while being backed by a lifetime warranty.

What is ADR exactly?

Active Debris Remover is a patent pending dynamic dust and contaminant shield to thoroughly protect the bearings in all conditions. The first component to ADR is the serrated profile molded into the pulley wheel. This directional ‘bladed’ design pushes any contaminants out and away from the bearing when the pulley is in motion. The second component to ADR is the stainless-steel dust shield with a unique outer edge profile to complement the function of the rotating bladed profile.

Does ADR add any drag or friction to the pulleys?

No, the precision fitment and design of the ADR interface adds zero drag to the bearing or pulley wheel.

Are the composite teeth going to last as long as alloy teeth?

The unique, fiber reinforced composite material that we are introducing here, was selected through many lab and field tests, for exhibiting the longest durability compared to other composite and alloy pulley options.

Is the system more aero with the ALPHA Disc/solid disc?

Our development and focus for ALPHA Disc was specifically related to the functional attributes and protection afforded by the solid pulley disc. No claims or aero benefits are made at this time.

You claim the cage structure is more solid than previous, why?

Every new product development is an opportunity to improve upon the attributes of previous versions. The faceted design, paired with an updated thicker profile and a stronger material increases the overall strength of the cage compared to previous systems. Additionally, the triangular layout of the inner cage presents a much stronger design.

How heavy is the OSPW RS system?

84g Shimano RS with 5-spoke pulleys
101g Shimano RS with ALPHA Disc
84g SRAM RS with 5-spoke pulleys
101g SRAM RS with ALPHA Disc

CeramicSpeed

OSPW RS 5-Spoke for Shimano 9250/8150

$599.00

With our OSPW RS for Shimano Road 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.

With an added level of customization (multiple Logo and Pulley Wheel options) combined with new innovative tech features the OSPW RS meets consumer demands for personal expression and premium ride experience.

The OSPW RS is a statement for where we've been, and where we're going - always at the forefront.

SHIFTING TIME

New design: improved quality and strength

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: