BULLS HANGER FOR E-STREAM EVO AM 4 (SMAG), COPPERHEAD, ADVENTURE, END-Z-A 1904-HR; TO REPLACE 5009-545-51A

OEM Derailleur Hanger for BULLS E-Bikes

The BULLS Derailleur Hanger is a genuine OEM replacement part engineered for a precise fit on select BULLS e-bike models. A bent or broken derailleur hanger is one of the most common trail-side failures — having the correct replacement on hand means less downtime and a faster return to riding.

Compatible Models

• BULLS E-Stream EVO AM 4 (SMAG)
• BULLS Copperhead
• BULLS Adventure
• BULLS End-Z-A 1904-HR

Key Features

• Genuine BULLS OEM part — direct replacement for part number 5009-545-51A
• Precision fit — machined to exact factory tolerances for correct derailleur alignment
• Sacrificial design — engineered to absorb impact and protect your derailleur and frame in a crash
• Easy installation — bolt-on replacement requiring standard workshop tools
• Lightweight alloy construction — durable without adding unnecessary weight

Don't Let a Bent Hanger End Your Ride

A derailleur hanger is designed to be the weak point — it bends so your derailleur and frame don't. Keep a spare in your pack or workshop and you'll never be stranded by a bent hanger again.

Genuine BULLS OEM replacement. Replaces part number 5009-545-51A. Sold individually. Verify compatibility with your specific model year before ordering.