Big Bore Kits 2-STROKE
Two Stroke Big Bore kits consist of: Sleeve or Nikasil coat, Piston kit, Top end Gasket kit and top pin bearing. Older big bore kits are still available for many bikes, inquire if you do not see yours listed.
KTM Two Stroke "Big Bore kit"
The KTM kits listed below, are Custom made by RPM Mfg and the prices include
Installation (Parts and Labor) Lead time usually is 6-8 weeks after your top end and payment is recieved. Our Big Bore kits are equiped with Wossner forged & coated pistons, LA Sleeve's or Nikasil coated and Cometic, Athena or Wiseco gasket kits. Send your complete top end only, Cylinder, head, piston & powervalve along with payment to the address listed on this website. If you don't see your model or year listed please inquire, we may be able to help you out.
This KTM kit prices are Parts kit, Bore Labor & Nikasil coating
with free return shipping in the USA - Inquire for lead time
KTM 125 to 144cc 2001-06 $535.00
KTM 200 to 220cc 1998-02 $635.00
KTM 300 to 330cc 1996-03 $690.00
KTM 300 to 330cc 2004-08 $690.00
KTM 360 to 390cc 1997-99 $690.00
KTM 380 to 410cc 1998-02 $690.00
410cc kits are in stock
(Crankcase clean-up required for 360 & 380 kits)
Limited stock Replacement Woosner 410cc kit pistons:
82.0mm Std. $197.00
82.5mm OS $197.00
Kawasaki Two Stroke
KX80-100cc 1986-00 #RPM-KX80 - (parts kit)
$240.00
KX85-107cc 2001-07 #LAS-5351B - (parts kit)
available bore sizes 100cc, 103cc & 107cc
(add your size preference when ordering)
$247.00
Check for availability on the following kits joep@rpmmfg.com
KDX200-240cc 1986-88 #RPM-DX200A - (parts kit)
$350.00
KDX200-240cc 1989-94 #RPM-DX200B - (parts kit)
$360.00
KDX200-240cc 1995-05
KDX220-240cc 1997-05 #LAS-5252B - (parts kit)
$355.50
KX250-295cc 87-89,94,97-99 #RPM-KX250-
add your year after part # for correct kit
$360.00
KX250-295cc 2000 #LAS-5422B - (parts kit)
$374.00
KX500 BIG BORE KITS BY RPM MFG & RACING SERVICES
KX500-540cc 1986-88 #RPM-KX500A - (parts kit)
$475.00 - 86-88 Limited quanties available
KX500-540cc 1989-04 #RPM-KX500B - (parts kit)
$475.00
KX500-550cc 1989-04 #RPM-KX500C - (parts kit)
$525.00
Replacement big bore pistons - CHECK FOR AVAILABILITY
KX540cc 89mm # RPM8228D300 $198.00
KX550cc 90mm # RPM8228D400 $198.00
KX560cc 91mm # RPM8228D500 $198.00
Honda Two Stroke
CR80-105cc 1986-02 #RPM-CR80 - (parts kit)
$280.00
CR85-102cc 2003-04 #LAS-948B - (parts kit)
$286.50
CR85-96cc 2005-07 #LAS-5599B - (parts kit)
$265.00
Check for availability on the following kits joep@rpmmfg.com
CR125-139cc 2005-07 #LAS-5579 - (parts kit)
$292.00
CR250-295cc 1987-91 #RPM-CR250A - (parts kit)
$325.00
CR250-270cc 2002-03 #LAS-5447-36 - (parts kit)
$325.00
Yamaha Two Stroke
Check for availability on the following kits joep@rpmmfg.com
YZ125-134cc 1999-01 #RPM-5378 - (parts kit)
$288.00
YZ125-134cc 2002-04 (INQUIRE)
YZ125-144cc 2005-07 #LAS-5533B - (parts kit)
$290.00
Suzuki two Stroke
RM85-100cc 2002-09 #RPM-RM85 - (parts kit)
$270.00
RM125-144cc 2004-09 #RPM-RM125 - (parts kit)
$310.00