2027 Ceramic Speed ALPHA PW for Shimano R8150/R8050/R7150/R5800

*Fully compatible with Shimano Ultegra R8150 / R8050 and 105 R7150 / R5800

CeramicSpeed ALPHA Pulley Wheels bring our most advanced durability technology into a compact, stock-size format. They are engineered for riders looking for a compact, durable solution that delivers smooth shifting and long service life. Designed for road and off-road use, ALPHA Pulley Wheels combine a one-piece, moulded composite body with CeramicSpeed low-friction ceramic bearings and patented ADR technology. Featuring CeramicSpeed’s signature tooth design, they provide an efficient, precise, and highly durable upgrade for modern rear derailleurs.

ALPHA Pulley Wheels introduces

- purpose‑specific upper and lower pulley shaping for a crisp chain control, quiet operation, and consistent performance under load.

- stainless‑steel, derailleur‑specific dustcovers offering superior bearing protection and eliminate the need for additional spacers.

Every pulley incorporates a bold, visible ADR logo, reinforcing the identity of CeramicSpeed’s patented bearing protection technology and visually unifying the ALPHA Pulley Wheels family across sizes.

Developed, designed, and hand built in Denmark, ALPHA Pulley Wheels deliver premium performance with uncompromising reliability.

In the box:

• Set of ALPHA Pulley Wheels
• UFO TECH Pulley Wheel Oil 15 ml

Product Highlights

• One-piece molded composite with sleek, minimal design details
• Developed, designed, and hand built in Denmark
• Optimized upper and lower tooth profile for smooth, precise chain control
• Distinct ADR logo. Bold identity across all sizes
• Signature CeramicSpeed tooth design for narrow - wide pulleys
• Lifetime warranty. Ride worry-free
• Patented ADR technology for unmatched bearing life

Click for ALPHA Pulley Wheel Matrix