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PISTON KITS
    All piston kits include: piston, rings, wrist pin and circlips
 
KTM 495, 1981 piston port. 
    Single ring, forged piston kit manufactured for us by
WISECO Pistons Inc.  We have included an extra ring with
this kit.  The sizes available are 92.59, 92.84 and 93.09 mm. 
KTM 495        $184.50
top end bearings     $15.95
  TEMPORARILY OUT  OF STOCK

 
 
KTM 495, 1982-84 reed valve.
    Two ring, forged piston kit, manufactured for us by
Wiseco Pistons Inc.  The sizes available are 92.59, 92.84
and 93.09 mm.
KTM 495        $184.50
top end bearings     $15.95
 
92.59 TEMPORARILY OUT  OF STOCK 

 
 
KTM 420 piston kit
    Forged, lightened 2 ring design.  Manufactured for us 
by Wiseco Pistons Inc.  Available sizes are 85.50, 85.75,
86.00 and 86.50mm.
Piston kit:              $178.50
top end bearings:    $15.95

 

 
 

OSSA 250 piston kit

    Forged, lightened 2 ring design (GPIII type). 

Fits all 250 (244cc) Ossa's  through GPIII and Yankee

twins.  Kit includes aluminum thrust washers.  We have

a limited number  available in 72.50 and 72.75. 

Pitson kit:     $129.75 USD

 

 

KTM 350 piston kits

    These kits are designed for the 86-91 (type 555 motors).  

Produced for us by Wiseco performance products, these

pistons feature Wiseco's new performance and durability

coating.  The piston dome, ring grooves, wrist pin area

and underside are coated.  Helps reduce heat transfer,

prevents rings from sticking and provides an anti galling

surface for the wrist pin.  Kit includes wrist pin, rings and

circlips.

 
Piston kit .............$182.50
Top end bearing.....$15.95
 

Penton-KTM 400 piston kits

    Should be available around the end of February, email

me so I can keep you up to date...

Sizes are 82.00, 82.25, 82.50, 82.75, 83.00 and 83.50

 
Piston Kit.............$179-$184 range
Top end bearings...$15.95
 
KTM 540-550 piston kits....92.25 mm
    Waiting on final piston weight and delivery date...

 

Piston Kit.............$184 - $186.00
 

KTM 500 piston kit... 89.00 mm

   

     We finally have a piston sample being sent to us...

thank you Hans.  We will do our best to get this into

production ASAP!  Please email us the number of

pistons you need and your contact information so we

can better determine the size of the production run.

 

 
Check out procedures and policies...
 
    To purchase an item or ask a question please email us at seven4racing@aol.com or give us a call at (828) 577-3366.