RACE TECH HI-PERFORMANCE 

RACE SERIES FRONT RACE SPRING KIT

CAN-AM DS450xMX

 <IP_QFSKR06.doc>              E Rios-Race Tech ã 7-29-10  

INCLUDES qty 2 of each: Main Springs, Secondary Springs, NPL Spring, NPL Collar, STD Go-Between, Step-Cut Go-Between, and Lower Spring Spacer.

TOOLS REQUIRED: Service Manual, Vise with Soft Jaws TMVJ 065 or equivalent, TSPA 01 Preload Adjusting Tool or Spanner Wrench, ¼” Flat Blade Screwdriver, and TSSM 01 Sag Master or Calipers.

DIGITAL VALVING SEARCH (DVS) printout: See DVS at www.racetech.com for your custom spring setup specs.

Support the front of the ATV securely; remove front shocks per the procedure in your service manual.  Install the Race Tech Spring Kit as follows:

Note: Click on the images to enlarge.

Disassembly

D1 Clamp Shock into a vise with Soft Jaws.

D2 Loosen Lock Ring.

D3 Remove all spring preload by unscrewing the collars. Use a Spanner Wrench if necessary.

 

D4 Use a small Screwdriver or similar tool to gently pry the Bottom-Out Bumper away from the end of the Shock.
 
 

D5 Remove the C-Clip Spring Retainer by pulling the Spring down and sliding the Clip out from under the Bumper Cup.

D6 Remove the stock Spring.

NOTE - The stock Preload Collar and Lock Ring will be used with the Race Tech Spring Kit. It is a good idea to clean and grease the threads on both the Preload Collar and Lock Ring before installation of the Spring Kit.   
 

Assembly
 
A1 Install the NPL Collar (single flange) with the long end of the Flange facing the bottom of the shock.
 

A2  Install the NPL Spring over the NPL Collar. The NPL Spring is the softest of the three springs.
 
 

A3  Install the step cut Go-Between Collar. The step on the inside of the diameter of the Go-Between goes towards the threaded portion of the shock body. This provides proper clearance for the Collar to pass over the threads during operation. If the step does not go towards the threads the Collar could get stuck and cause damage.
 
 
 

A4 Install the Secondary Spring.

A5  Install the standard Go-Between. The standard Go-Between is reversible for tuning purposes. Running the shorter end into the Secondary Spring will cause the spring set to cross over onto the Main Spring later. Running the long end into the Secondary Spring will cause the spring set to cross over onto the Main Spring sooner. This tuning option can be used to affect things such as body roll and proper front end traction.
 

A6  Install the Main Spring.
 

A7 Install the Lower Spring Spacer with the flange going into the Main Spring. Use the standard C-Clip Spring Retainer sliding it on top of the lower Spring Spacer and under the Bumper cup the same as it was when you removed it. 

 

Preload Setup

P1 Refer to the DVS Specs from racetech.com. 
 
P2 Adjust the Preload Collar to set the Gap between the flanges of the NPL and Go-Between Collars.  Use a Caliper or Tape Measure.
 
P3 Gently tighten the Lock Ring against the Preload Collar being careful not to change the Gap.
 
P4 Repeat procedure for the second shock. 
 
NPL Gap is the distance between the NPL Collar Flange and the Go-Between Collar Flange that extends into the NPL Spring. 
 
This distance determines the ride height of the ATV. A larger Gap creates a lower Ride Height; a smaller gap equals a higher Ride Height.