Longacre Accutech SMI Tachometer - Black Face With Panel Color_Silver AIM Inline Water fittings allow

AIM Inline Water fittings allow for easy inline sensor installation

comfort-coated webbing and proprietary hardened steel hardware

The direct flow upper and lower chin bar vents on the front of the helmet help to increase airflow and prevent shield fogging

open-track and time-trial events

Longacre Accutech SMI Tachometer - Black Face With Panel Color_Silver AIM Inline Water fittings allowLongacre's stepper motor style tachometers use a small electric motor to drive the pointer for increased accuracy over more traditional air core instruments that are easily effected by the windings. This style of tach is so accurate that many professional teams are making the switch just look at any in car TV camera!) The easy to read 4 1 2" tachometer features a max RPM recall button, and a 2 stage LED warning light that also doubles as a 2 stage