Rear Brake Caliper Adapter / Bracket – BMW E30 to E46 294mm Disc (with E90 Hub Conversion)

Upgrade the rear braking performance of your BMW E30 with a proven big-brake conversion using E90 rear hubs and E46 rear brake components. This adapter kit allows you to run 294mm rear discs and larger OEM BMW calipers, improving braking response, heat capacity, and overall stopping power — ideal for performance street builds, drift cars, and track applications.

Suitable for:

BMW E30 models with E90 rear hub & bearing conversion (Hub OEM No. 33416752381).
Designed specifically to work with E46 294mm rear brake discs and compatible OEM BMW rear calipers.

KEY BENEFITS

• Supports significantly larger rear brake setup for improved stopping power
• Ideal for drift, track, rally or high-performance street builds
• Utilizes widely available BMW OEM components
• Clean, strong and motorsport-oriented solution

REQUIREDE COMPONENTS (NOT INCLUDED)

Hubs:

• 2 × BMW E90 Rear Hubs (OEM: 33416752381)

Brake Discs (294mm) – from:

• BMW 325ci (2001–2006)
• BMW 325i (2001–2005)
• BMW 328ci (2000)
• BMW 328i (1999–2000)

Rear Brake Calipers – from:

• BMW 325ci (2001–2006)
• BMW 325i (2001–2005)
• BMW 325xi (2001–2005)
• BMW 328ci (2000)
• BMW 328i (1999–2000)
• BMW Z4 (2003–2008)

OEM Reference Numbers:

• Caliper Housing (Left): 34216758135
• Caliper Housing (Right): 34216758136
• Caliper Carriers (x2): 34216758134

NOTES

Original E30 handbrake system must be removed as this setup does not support the OEM drum-style handbrake. Kit is for rear axle only.