Intro Products Service Downloads
Intro Oval Track WCJ STJ LMJ MCJ
General
How the shock works
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Technical Information /
Models Available
  3.4 mb
Racing Manual
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STJ Key Features
Designed for Late models, Modified, Sprintcars and many others
Available in 4", 5", 6", 7", 8" and 9" lengths
Available as adjustable and nonadjustable
Light weight, threaded aluminum body
Optional coil-over kit
Owner rebuildable - easy to dial in, reshim and service
Professional technical support
 
STJ Options Available
Base Plate and Jets -
Makes the shock work smoother, safer and eliminates the risk of cavitation without the need of increased gas pressure.
Double Digressive Piston -
Produces damping curves with a steep low speed part and a flat high speed part.
High Frequency Piston -
Excellent for traction and grip on flat tracks.
One-way Shaft Jets -
Allows the compression bleed to be smaller than the rebound bleed.
Parallel Compression Valve -
Allows the rebound bleed to be smaller than the compression bleed and makes it possible to produce double-knee curves.
External Adjuster Kit
Complete kit to convert a non-adjustable shock to an adjustable model.