CeramicSpeed OSPW RS ALPHA — SRAM Red/Force AXS D1/E1 v2

An oversized pulley wheel system engineered specifically for the latest SRAM Red and Force AXS D1/E1 derailleurs. The CeramicSpeed OSPW RS ALPHA v2 replaces the stock pulleys and cage with a hand-built, ceramic-bearing system that runs quieter, lasts longer, and frees up real watts where SRAM's 12-speed drivetrain leaves them on the table.

Why riders choose OSPW RS ALPHA for SRAM Red/Force AXS

Oversized 13T + 19T aluminium pulleys with ceramic bearings. Stock 12T pulleys force the chain through tight bends that bleed watts. Larger pulleys reduce chain articulation and drivetrain friction so you save measurable wattage at race intensity and your X-Range chain lasts visibly longer.

Up to 60% less drivetrain friction vs stock SRAM AXS. Derailleur drag is the most overlooked source of lost watts on a modern AXS bike — typically 2–3 watts at threshold. OSPW gives those watts back so your bike accelerates and holds speed with less effort on every flat and rolling section.

Carbon-fibre cage tuned for SRAM AXS shift dynamics. Generic aftermarket cages can throw off SRAM's electronic shift timing. The v2 ALPHA cage is tuned for the AXS derailleur geometry so shifts stay crisp and consistent across the cassette.

Custom seal, 60% better moisture protection. Wet gravel-road rides and pressure washing destroy standard derailleur pulleys within a season. The redesigned seal blocks water and grit so the bearings keep spinning quiet through any conditions you ride in.

Plug-and-play install in under 15 minutes. No chain length change, no AXS recalibration — it bolts onto your existing Red or Force D1/E1 derailleur with the supplied tools.

2-year warranty, 60,000 km service interval.

What's in the box

• OSPW RS ALPHA v2 cage with 13T + 19T ceramic-bearing pulleys
• UFO TECH All Round Bearing Grease (5 ml)
• Mounting hardware + install tools
• CeramicSpeed decal

Fitment

• Derailleur: SRAM Red AXS D1/E1, Force AXS D1 (12-speed)
• Drivetrain: SRAM AXS 12-speed road
• Discipline: Road, Tri
• System weight: 96 g

Confirm your derailleur generation (D1 or E1, printed on the cage) before ordering. If you're unsure, contact us and we'll confirm fitment for your bike.