Futaba - SBS-01RM Magnetic RPM Telemetry SensorUSE: Indicates the number of rotations of the item (engine, motor, etc.) to which it is attached. RANGE: 360 ~ 100,000 RPM blades LENGTH: 255 mm WEIGHT: 4. 7 g VOLTAGE: DC 3. 7 ~ 7. 4V

The name says it all

These suckers will hold on in off-camber situations

Power Requirement:

10 transit speed

Red anodizing finish

Anodized Black in color

reliable connection at all times

Pinion Gear 21 Tooth

Weight: 24g

High quality spiral wound paper tube for kits using the BT-50 body tube

This is the optional adjustable aluminum motor mount for the Traxxas 4-Tec 2

The diff case and inserts were tooled for the ultimate in precision