Data is one of the most important parts of drag racing, and drive shaft RPM is one of the most important pieces of data that helps the user understand what their car is doing.  Our DSRPM rings are the most accurate available, giving the user an unprecedented level of detail.  We offer both 8 trigger and High Resolution 32 trigger versions.  Available in the most popular sizes and even 1" ID blanks that the user can bore to fit.

Click Here For 32 Trigger Ring Info

Provides extremely high resolution drive shaft rpm to Davis Technologies products as well as Data Systems & EFI Systems.

Click Here For 8 Trigger Ring Info

Provides accurate drive shaft rpm to Davis Technologies products as well as Data Systems & EFI Systems.

Limited Availability

Made In USA