Traxxas 2941X Series 3 NiMH Battery Pack 7-Cell 8.4V 3300mAh Hump w/iD Conn Bullet Parts That shows up as vibration

That shows up as vibration at speed

02" (26mm) 4-Point

HPI Racing 101265 Exhaust Header Set RTRBullet ST 3

Direct plug-in replacement

2" Satin Chrome Wheels

Traxxas 2941X Series 3 NiMH Battery Pack 7-Cell 8.4V 3300mAh Hump w/iD Conn Bullet Parts That shows up as vibrationTraxxas 2941X Series 3 NiMH Battery Pack 7 Cell 8. 4V 3300mAh Hump w iD Conn This is the Traxxas 8. 4V 3300mAh Hump NiMH Battery Pack. FEATURES New high current connector with gold plated copper terminals iD Auto Battery Identification allows Traxxas iD equipped chargers to automatically set and optimize charge settings MAXX cable high efficiency 12 gauge silicone jacketed wire Sub C size cells INCLUDES 7 cell 8. 4V 3300mAh iD Power Cell NiMH Hump