DUCATI  ST-4s / ST-4s ABS   996  Sport Touring   2002-2005

Complete Performance Chain & Sprocket Kit with a *Premium "Made in Japan" D.I.D. 525 ZVMX 1300cc Rated Chain

Included in this kit:  OEM 525 gearing sizes + options...                           


Exact OEM  -  Quick Acceleration  -  Freeway Gearing


Unless otherwise specified, chain and sprockets will be sent as follows;

JT 15 tooth Front & 38 tooth Rear Sprocket   (c49 high carbon steel,   scm415 chromoly Japan steel alloy ) and the new Pro Street DID ZVMX 525 x 102L Gold X-Ring drive chain. 

         ( Exact fit OEM sizes and gear ratio, or specify Custom sizes in Message to Seller at Checkout )



On Sale NOW, with..*FREE SHIPPING!!  

 *USA Only (including Hawaii, Alaska, V.I., Guam and Puerto Rico)


          International Customers, PLEASE LEAVE PHONE NUMBER FOR CUSTOMS


Also available in optional gear ratios...at no extra charge.     

Call or message RPE Motorcycle to special order!


 Chain & sprockets are sent with Gold DID chain with a RIVET type master link ONLY.   
Please specify in "ADD MESSAGE TO SELLER" at checkout if optional gearing is desired.
 
  
OEM DUCATI CHAIN AND SPROCKET SIZES:
2002-2005 DUCATI ST4S / ABS  996cc        OEM size is 525x102L x-ring chain, 15t Ft. Sprocket,  38t Rear Sprocket
 
For QUICKER gear ratio (off the line, roll on's, wheelies), use a 14 tooth front sprocket and a stock size rear sprocket.
-1t front sprocket is the most versatile way to gear it quick, this way you can switch back to the stock size with the same length chain. This quick ratio will be much quicker, but slower top speed with higher freeway cruising rpm's.


For FASTER TOP SPEED, and LOWER FREEWAY RPM's, use a  -2 or a -3t  rear sprocket , or a 1t (16t) front sprocket for lowered highway cruising rpm's and higher top speed.
This change is a variation that will make your bike slower off the line with lower highway rpm's. More extreme with -3 rear or +1t front (same ratio change) than -2 teeth rear.



* A 1 tooth change in the front is equivalent to a 3 tooth change in the rear.. but opposite effects.
* A 1 tooth change in the rear is a very slight change.
EXAMPLE: (-1 tooth front = +3 teeth rear) or (+1 tooth front = -3 teeth rear)
EXAMPLE: (-1 tooth front and +1 tooth rear combined is the same as +4 rear only without changing the front)



STOCK GEARING  is the factory calculated "happy medium" of both low end acceleration and top end speed.



JT Ft. Sprocket also available in 525 x 14 , 15, and 16 teeth

JT Steel Rear Sprocket also available in 525 x 37, 38, 39, 42, 43 teeth

RPE Motorcycle 520 Conversion also available with lightweight drive components!  CALL!


  All 525 chains include RIVET type master link.
 Addtional 525 DID "RIVET type" master links available from RPE Motorcycles for $16.95 ea
                                

Also available from RPE Motorcycle...
 Pro Chain Tool Kit @ $79.95 when purchased with a chain & sprockets kit!
  • Complete chain tool for most 520, 525 and 530 standard and o-ring chains
  • Break, press and rivet your chain with one compact tool
  • Will rivet hollow nose master links (will not rivet solid soft-nose pins)
  • Will push pin completely through link/side plate
  • Hardened body, riveting tip and breaker pin for strength and durability
  • Removable handle for compact storage
  • Perfect for trail/road tool pack if you have a chain with a rivet master link
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      RPE Motorcycle  
    10725 Beverly Blvd,
    Whittier, CA 90601
    Phone Orders, Will Calls and Installation appointments welcome!

    Hours: M-F = 10-6pm, 1st Sat. of the month = 9-5pm   (Pacific Std. Time)


    We accept Visa, Master Charge, Discover, American Express, and in person ATM 


                 *FREE Shipping to USA only
                                                                                                                                                                   Hawaii, Puerto Rico, Alaska included!!!


     
     ***** INTERNATIONAL BUYERS . . ....  PLEASE LEAVE YOUR PHONE NUMBER FOR SHIPPING DOCUMENTS!!




    JT Sprockets and DID Chain, the leading edge technology in production and materials with total dedication to excellence gives you the ultimate motorcycle sprocket and chain range at unbeatable value. Our mission is to supply you the most innovative and competitive product line fully backed by complete availability and service. Your Absolute Satisfaction is our Commitment with JT Sprockets and DID Chain - World's No. 1 manufacturers of aftermarket motorcycle chain and sprockets, constantly raising the industry's standards in performance, longevity and reliability.

    Half the Power Loss  (Compared with Normal O-Ring)  D.I.D’s PATENTED X-Ring construction reduces friction by twisting between the side plates instead of being squashed. Normal O-Rings and other makers’ modified O-Rings have squashed points that increase friction. The twisting action of the X-Ring disperses the pressure and minimizes power loss.    X-Ring is a U.S.A. Registered Trademark of D.I.D; Daido Kogyo Co. Ltd. Japan

    1.5 to 2 TImes Longer Wear Resistance  (Compared with Normal O-Ring)  The X-Ring’s four contact points greatly increase its sealing performance. This keeps the dirt out and the lubrication in much better than any other  O-Ring. .-X-Rings have the greatest wear resistance of any other type of O-Ring or Non-O-Ring chain.