The Holmes Hobbies Puller Pro V2 540 Waterproof Sensored Crawler Motor provides high power, high torque, high performance, and smooth startup. When you want BIG torque and smooth brushless startup on the rocks, the Puller Pro v2 delivers! Perfectly suited as a drop in motor for any rock crawler or rock racer that uses 540 and 550 motors, the Puller Pro v2 is in a class above the rest. It crams in more "active motor" than any other 540 available to give you the excessive force you desire. Exceptional performance in rock racing, extremely strong brake, with top class smoothness going slow in the rocks. Designed for extra control in fast, large, heavy, and two speed rock crawlers.
 
Improvements from v1 include better drag brake, adjustable and more accurate sensors, better performance in reverse rotation rigs, beefier solder tabs for lower resistance, and a sideways oriented sensor port for tight installs.  
 
Features:

• Four pole 18mm diameter x 25mm length rotor
• Twelve slot stator
• 13g phase wires with 4mm bullets installed
• Oversized bearings
• Sensored with adjustable timing
• Waterproof sensor board
• Includes sensor wire

Specifications:

• Size: Standard 540
• Mounting Pattern: 25mm
• Mounting Screws: M3
• Shaft Diameter: 3.175mm
• Can Diameter: 36mm
• Can Length: 53mm
• Weight: 210g (7.4oz) with wires
• RPM: 50,000 rpm max