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The cylinders included in this list were purchased used and fully reconditioned with machining, porting, and Nickel-Composite's plating. Most of the cylinders are bored 2-4mm oversize and designed to fit WISECO Pro-Lite piston kits and MOOSE RACING gasket kits. The cylinders are priced individually, meaning that they don't come with piston and gasket kits, powervalves, cylinder heads or studs unless otherwise listed. All of the cylinders are priced at or below the retail price of a stock OEM cylinder. All over-bored cylinders require clearance modifications to the cylinder head and powervalves. That service is $50 extra and you must supply the parts. New head and powervalve parts are also available at retail OEM prices. 4-Stroke big bores do not require head and valve mods. The 4-stroke cylinder heads listed on this page are ported, multi-angle valve seat refaced, and Kibblewhite Black Diamond valve train parts of valves, dual springs, and titanium retainers. They don't include tappets or camshafts but those are options.

Ordering and Shipping

We will mail order these parts all over the USA and the rest of the world. We are experts at handling importation documents for shipments into countries outside the USA. We use Express Mail to save you money on freight and duty taxes. All international invoices are discreetly emailed to you. You can order by telephone 1-630-825-5645 or by email at ericgorr@hotmail.com

Reconditioned Motorcycles

1977 Maico AW125 vintage dirt bike. Completely original and carefully restored. Can be sold disassembled ready for international shipment or assembled. Export documentation available. Price: $4,000 firm

Detailed photos available on request.

2006 Kawasaki KXF250 motocross racer. Built by Eric Gorr, 10hrs since major performance rebuild of new head, crankshaft, and bearings. Extras include FMF Megabomb exhaust system, 262cc Wiseco big bore, Hot Cams, ported head with Xceldyne titanium valves and PSI spring kit. New UFO plastic and Unbound Energy team graphics, Work Connection skid plate, RG3 triple clamp with 4-post Fat-Bar mounts, Renthal Fats, CV4 Blue hoses, stainless steel filter and cover, original exhaust system too. $3,000 in extras! Price: $4,800 Free delivery within 250 miles of Chicago.

General Merchandise New

JAG oil cooler kit, fits 2002-07 Honda CR450R/X.
Price: $190
Free UPS ground freight in Continental USA

Magura Hydraulic Clutch Kit, fits 2004-07 Honda CRF250R/X.
Price: $150
Free UPS ground freight in Continental USA

CEET Gripper seat cover, fits Honda CRF250R 2004-06
Price: $25 
Free UPS ground freight in Continental USA

CEET Gripper seat cover, fits Yamaha YZ250/450F 2003-05
Price: $25
Free UPS ground freight in Continental USA

SDG extra tall gripper seat, black, fits 2003-04 CRF450R/X New never used.
Price: $65
Free UPS ground freight in Continental USA

X-FUN aluminum gas tank from Italy. Fits 2004-05 RMZ/KXF250.
Price: $400
Free UPS ground freight in Continental USA

X-FUN aluminum gas tank from Italy. Fits 2002-04 CRF450R, CV-4 Gold thermal wrap to insulate fuel from engine heat.
Price: $400
Free UPS ground freight in Continental USA

CV4 silicon hose set, red, fits 2002-06 Honda CRF450R
Price: $70
Free UPS ground freight in Continental USA

CV4 silicon hose set, red, fits 2006 Yamaha YZ250F
Price: $30
Free UPS ground freight in Continental USA

Supermoto rims, Excel, silver, 17 inch, 32 hole, front 2.85, rear 4.15
Price: $250 set
Free UPS ground freight in Continental USA

BRAKING oversized front wave rotor, pads, and caliper bracket kit, fits Honda CR125 1995-2003, CRF150/230 2003-05, CR250R 1995-2003, CR500 1995-2001
Price: $195
Free UPS ground freight in Continental USA

Boyesen Racing aluminum clutch cover, fits Honda 2002-06 CR250R
Price: $50
Free UPS ground freight in Continental USA.

Boyesen hi-flow waterpump impeller, #137, fits YZ250F all years
Price: $50
Free UPS ground freight in Continental USA.

V-Force 2 reed valve, fits 1986-2001 Honda CR250 new in box.
Price: $50
Free UPS ground freight in Continental USA.

Airbox and flange, fits Honda CRF450R 2005-07 Honda #s 17250-MEN-731 & 17217-MEB-770
Price: $25
Free UPS ground freight in Continental USA.

Moose Racing, rear disc protector, #M13-050, fits Yamaha YZ125,250F&T,450 2003-05
Price: $25
Free UPS ground freight in Continental USA.

Moose Racing hard anodized aluminum sprocket, fits Yamaha YZ125 1999-2001 49 tooth.
Price: $30
Free UPS ground freight in Continental USA

Moose Racing, closed-end aluminum throttle tube Fits Yamaha YZF250,400,426.
Price: $20
Free UPS ground freight in Continental USA.

Moose Racing, shift lever, #MKA6, fits Kaw KX125,250,500 1994-2004
Price: $15
Free UPS ground freight in Continental USA.

Moose Racing, shift lever, #MKA1, fits all Kaw KX minis
Price: $15
Free UPS ground freight in Continental USA.

Motion Pro Cables

Motion Pro Cable, #010703, Yamaha YZF/WRF400, starter cable and plunger.
Price: $20
Free UPS ground freight in Continental USA.

Motion Pro Cable, #050286, Yamaha YZ250F,426, throttle cable black
Price: $20 Free UPS ground freight in Continental USA.

Motion Pro Cable, #020205, Yamaha YZ250F,426, throttle cable gray T2
Price: $20
Free UPS ground freight in Continental USA.

Motion Pro Cable, #050246, Yamaha YZ250F, clutch, T2 gray
Price: $15
Free UPS ground freight in Continental USA.

Pivot Works Kits

Pivot Works Kit, swingarm, #K08-008 fits Kawasaki KX60 1990-2001, KX/RM65 2000-05, KX80/85 1983-2005.
Price: $25
Free UPS ground freight in Continental USA.

Pivot Works Kit, linkage, #H04-021 fits Honda CR125 1994-97 CR250 1994-96.
Price: $40
Free UPS ground freight in Continental USA.

Pivot Works Kit, swingarm, #Y06-421 fits Yamaha YZ125,250,400 1998.
Price: $20
Free UPS ground freight in Continental USA.

Pivot Works Kit, linkage, #K06-021 fits Kawasaki KX125,250 1999-2004.
Price: $40
Free UPS ground freight in Continental USA.

Pivot Works Kit, linkage, #K06-008 fits Kawasaki KX80,85,100 1990-2004.
Price: $40
Free UPS ground freight in Continental USA.

Pivot Works Kit, swingarm, #H08-001 fits Honda CR125 1993-2001.
Price: $30
Free UPS ground freight in Continental USA.

Crankshafts

Crankshaft 2001-2003 RM125 Stroker crankshaft with new Hot Rod kit 58.5mm
Price: $400
Free UPS ground freight in Continental USA.

Crankshaft 2004-2006 RM125 Stroker crankshaft with new Hot Rod kit.
Price: $400
58.5mm Free UPS ground freight in Continental USA.

Crankshaft 2001-02 YZ250F new Yamaha crankshaft in box #5NL-11400-10-00
Price: $200
Free UPS ground freight in Continental USA.

Crankshaft 1998-2000 YZ125 Hot Rod crank new #H124
Price: $140
Free UPS ground freight in Continental USA.

Hot Rod kit, new in box, fits: Honda CR80/85 1986-2005
Price: $30
Free UPS ground freight in Continental USA.

Hot Rod kit, new in box, fits: Honda TRX250R 1987-89
Price: $40
Free UPS ground freight in Continental USA.

Hot Rod kit, new in box, fits: Honda CR125 1988-2005
Price: $30
Free UPS ground freight in Continental USA.

Hot Rod kit, new in box, fits: Kawasaki KX500 1985-2003
Price: $40
Free UPS ground freight in Continental USA.

Hot Rod kit, new in box, fits: Suzuki RM85 2002-06
Price: $30
Free UPS ground freight in Continental USA.

Hot Rod kit, new in box, fits: Suzuki RM125 1997-99
Price: $30
Free UPS ground freight in Continental USA.

Hot Rod kit, new in box, fits: Suzuki RM250 1996-2002
Price: $30
Free UPS ground freight in Continental USA.

Hot Rod kit, new in box, fits: Suzuki RMZ250 2004-06
Price: $75
Free UPS ground freight in Continental USA.

Engine parts section

Honda

Big bore 100cc cylinder fits 1986-04 Honda CR80/85. Ported by Eric Gorr for mid-top, fresh Nickel-Composite plating.
Price: $300
Free UPS ground freight in Continental USA

Big bore 100cc cylinder fits 2005-07 Honda CR85. Ported by Eric Gorr for mid-top, fresh Nickel-Composite plating.
Price: $400
Free UPS ground freight in Continental USA

Big bore 92cc cylinder fits 1986-04 Honda CR80/85. Legal for ATV racing classes. Ported by Eric Gorr for mid-top, fresh Nickel-Composite plating. Includes 2 Wiseco piston and gasket kits.
Price: $375
Free UPS ground freight in Continental USA

2 Cylinders, fits 1984-85 Honda CR125, ported, bored to 56mm, good useable cylinder.
Price: $75 each
Free UPS ground freight in Continental USA

Crankcase half, left side, fits 1995-2005 Honda CR80/85 Part# 11200-GBF-830
Price: $100
Free UPS ground freight in Continental USA

Cylinder and 265cc piston kit, fits Honda 1988 CR250 Ported by Eric Gorr and Nickel-Composite plated to 265cc
Price: $300
Free UPS ground shipping in the continental USA.

1997-2001 CR265 cylinder, ported by Eric Gorr, new Nickel-Composite plated, with head and powervalve, Wiseco piston and gasket kits.
Price: $600
Free UPS ground shipping in the continental USA.

2004-07 CRF262cc cylinder with piston and gasket kits.
Price: $575
Free UPS ground shipping in the continental USA.

CRF480 cylinder, new Nickel-Composite plated, with Wiseco piston and gaskets
Price: $550
Free UPS ground shipping in the continental USA.

CRF480 cylinder, used once, with Wiseco piston and new gaskets
Price: $350
Free UPS ground shipping in the continental USA.

TRX450R big bore cylinder 96mm, new Nickel-Composite plating, Wiseco piston kit.
Price: $350
Free UPS ground shipping in the continental USA.

WEB CAM grind#208/921 high lift, mid-top end camshaft, used once, fits Honda CRF450R 2002-06
Price: $50
Free UPS ground freight in Continental USA

VORTEX programmable ignition, 10 position switch, adjust on the fly with handlebar switch, used once, fits Honda CRF450R 2002-06
Price: $250
Free UPS ground freight in Continental USA

Kawasaki

Cylinder fits 1986-2004 KX60, stock-sized bore with new Nickel-Composite plating.
Price: $160
Free UPS ground shipping in the continental USA.

Cylinder fits Kawasaki 1979-82 KX/KDX80. Features new Nickel-Composite plating and Wiseco top end kit.
Price: $200
Free UPS ground shipping in the continental USA.

Cylinder fits Kawasaki 1983-85 KX80. Features new Nickel-Composite plating and Wiseco top end kit.
Price: $200
Free UPS ground shipping in the continental USA.

Cylinder fits Kawasaki 1986-88 KX80. Features new Nickel-Composite plating and Wiseco top end kit.
Price: $200
Free UPS ground shipping in the continental USA.

Cylinder fits Kawasaki 1989-90 KX80. Features new Nickel-Composite plating and Wiseco top end kit.
Price: $200
Free UPS ground shipping in the continental USA.

Cylinder fits 2000-06 Kaw KX65. KX72cc ported by Eric Gorr with new Nickel-Composite plating, Wiseco piston and gaskets.
Price: $350
Free UPS ground shipping in the continental USA.

KX92cc cylinder, fits late model Kaw KX85, ported by Eric Gorr, good used, with Wiseco 782MO5050
Price: $350
Free UPS ground shipping in the continental USA.

KX85 cylinder bored to 100cc, ported by Eric Gorr, new Nickel-Composite plating.
Price: $350
Free UPS ground shipping in the continental USA.

KX144 cylinder, ported by Eric Gorr, new Nickel-Composite plating, Wiseco piston and gaskets, fits 1993-94 Kaw KX125
Price: $275
Free UPS ground shipping in the continental USA.

KX144 cylinder, ported by Eric Gorr, new Nickel-Composite plating, with Wiseco piston and gaskets. Fits 1999 Kaw KX125
Price: $395
Free UPS ground shipping in the continental USA.

KX125 cylinder, 2000, new Nickel-Composite plated 54mm
Price: $225
Free UPS ground shipping in the continental USA.

Big bore kit for a Suz/Kaw RMZ/KXF250, 262cc cylinder with Wiseco piston and gasket kit.
Price: $449
Free UPS ground shipping in the continental USA.

Cylinder fits 1995-2006 Kaw KDX200/220. Big bore 240cc cylinder, ported by Eric Gorr, fresh Nickel-Composite plating, and Wiseco piston kit.
Price: $449
Free UPS ground shipping in the continental USA.

Crankcase half, left side, fits 2004-06 Suzuki RMZ250 and Kawasaki KXF250
Price: $175
Free UPS ground freight in Continental USA

Crankcase set, fits Kawasaki KX250 1996-2000, used, good condition, repaired drain plug, needs main bearings and seals.
Price: $250
Free UPS ground freight in Continental USA

Performance cylinder head, fits 2006-07 Kaw KXF450. Reconditioned with new multi-angle valve job and porting by Eric Gorr, with new stock valves and springs.
Price: $700
Free UPS ground shipping in the continental USA.

KX500 cylinder, fits 1989 and later Kaw KX500. Fresh rebuild with LA Sleeve, ported by Eric Gorr. New Wiseco 575MO8600 piston kit.
Price: $499
Free UPS ground shipping in the continental USA.

KTM

Cylinder fits KTM65SX 2000-07, ported by Eric Gorr, with new Nickel-Composite plating.
Price: $225
Free UPS ground shipping in the continental USA.

Cylinder fits KTM85 2004-07 ported by Eric Gorr, new Nickel-Composite plating.
Price: $375
Free UPS ground shipping in the continental USA.

Cylinder fits 2003-06 KTM125SX, 54mm new Nickel-Composite plating, ported by Eric Gorr Wiseco piston kit.
Price: $400
Free UPS ground shipping in the continental USA.

Cylinder fits 2003-07 KTM200, new Nickel-Composite plating, ported by Eric Gorr
Price: $300
Free UPS ground shipping in the continental USA.

2000-07 KTM540 cylinder, new Nickel-Composite plated with Wiseco piston kit.
Price: $550
Free UPS ground shipping in the continental USA.

Cylinder head fits 2000-07 KTM400,520,525. Freshly rebuilt with new bronze seats, guides, multi-angle valve job, and 4 new OEM steel valves, ported and polished.
Price: $399
Free UPS ground shipping in the continental USA.

Suzuki

Vintage Suzuki cylinder fits 1977 RM250, includes studs and exhaust manifold, good bore 67.50mm
Price: $50
Free UPS ground shipping in the continental USA.

Cylinder fits 2002-2004 RM85 100cc Supermini. Ported by Eric Gorr, new Nickel-Composite plating. Requires head, powervalve, and case mods. Designed for use of Wiseco 806MO5200 piston.
Price: $299
Free UPS ground shipping in the continental USA

Crankcases for 2005-07Suzuki RM85-105, used and reconditioned, new bearings and seals, ported for 105cc kit.
Price: $250
Free UPS ground shipping in the continental USA.

Big bore top end fits 1991-96 Suzuki RM125. Package includes a 144 big bore ported by Eric Gorr cylinder, power-valves, head, piston kit, gaskets.
Price: $350
Free UPS ground shipping in the continental USA.

Cylinder fits 1996 Suzuki RM125. RRP supercross porting, stock bore, good used.
Price: $125
Free UPS ground shipping in the continental USA.

Cylinder fits 2000-2002 Suzuki RM125. 144cc big bore cylinder, Eric Gorr ported, Nickel-Composite plated with Wiseco piston kit.
Price: $399
Free UPS ground shipping in the continental USA.

Cylinder fits 2000 Suzuki RM265. Features welded bridges, Eric Gorr ported, Nickel-Composite plated, with cylinder head and Wiseco piston kit.
Price: $399
Free UPS ground shipping in the continental USA.

Cylinder fits 2001 Suzuki RM250. 265cc big bore cylinder, ported by Eric Gorr, new Nickel-Composite plating, with Wiseco piston kit.
Price: $399
Free UPS ground shipping in the continental USA.

Cylinder fits 2002 Suzuki RM250 cylinder with welded bridges, new Nickel-Composite plating, Wiseco piston kit.
Price: $275
Free UPS ground shipping in the continental USA.

Big bore cylinder fits 2003-06 Suzuki RM250. 265cc cylinder, ported by Eric Gorr, new Nickel-Composite plating.
Price: $325
Free UPS ground shipping in the continental USA.

Big bore kit for a Suz/Kaw RMZ/KXF250, 262cc cylinder with Wiseco piston and gasket kit.
Price: $449
Free UPS ground shipping in the continental USA.

New parts fits 2000-04 Suzuki DRZ-400E,S includes cylinder head, ported by Eric Gorr. Also includes new stock valves and springs, Moose Racing top end gasket kit.
Price: $575
Free UPS ground shipping in the continental USA.

Yamaha

Cylinder fits 1993-2006 Yamaha YZ85 Supermini 103.5cc big bore featuring Eric Gorr porting with Wiseco kit.
Price: $375
Free UPS ground shipping in the continental USA.

Cylinder and head fits 1976 Yamaha YZ125. Good bore 57.50mm, ported by Eric Gorr in the 70s.
Price: $80
Free UPS ground shipping in the continental USA.

Cylinder and head fits 1982 Yamaha YZ125. Good bore 57.25mm, ported by Eric Gorr in the 80s.
Price: $100
Free UPS ground shipping in the continental USA.

Cylinder fits 1994 Yamaha YZ125. Big bore 144cc cylinder was ported by Eric Gorr and has new Nickel-Composite plating and a 58mm Wiseco piston kit
Price: $199 Free UPS ground shipping in the continental USA.

Cylinder fits 1999 Yamaha YZ125. Stock sized with new Nickel-Composite plating.
Price: $175
Free UPS ground shipping in the continental USA.

1999 YZ144 cylinder, ported, new Nickel-Composite
Price: $250
Free UPS ground shipping in the continental USA.

Cylinder fits 2000 Yamaha YZ139. Featuring new Nickel-Composite plating.
Price: $225
Free UPS ground shipping in the continental USA.

Cylinder fits 2001-04 Yamaha YZ125. Ported by Eric Gorr, good stock bore.
Price: $225
Free UPS ground shipping in the continental USA.

2001-04 YZ144 cylinder, ported, new Nickel-Composite
Price: $325
Free UPS ground shipping in the continental USA.

Big bore cylinder fits 2005-07 Yamaha YZ125. 144cc cylinder, ported by Eric Gorr, new Nickel-Composite plating, with Wiseco piston kit.
Price: $475
Free UPS ground shipping in the continental USA.

2005-07 YZ144 cylinder, head, powervalves, Wiseco piston and gaskets
Price: $675
Free UPS ground shipping in the continental USA.

WR210cc cylinder, ported, Nickel-Composite plated $125 Requires powervalve mods $25 and Wiseco 818MO6850 piston and gaskets
Price: $125
Free UPS ground shipping in the continental USA.

Cylinder fits 1994 Yamaha YZ250 with new Nickel-Composite plating to stock 68mm bore size.
Price: $299
Free UPS ground shipping in the continental USA.

Big bore cylinder fits 1999-2006 Yamaha YZ250. Features a cylinder ported by Eric Gorr for Mo-Better powerband and new Nickel-Composite plating.
Price: $399
Free UPS ground shipping in the continental USA.

Big bore cylinder fits 1998-99 Yamaha YZ/WR400F. Cylinder with new Nickel-Composite plating and Wiseco 4649MO9400 piston and gasket kits.
Price: $399
Free UPS ground shipping in the continental USA.

Big bore cylinder fits 2001-2006 YZ262F cylinders, Nickel-Composite plated with Wiseco 4881MO7900 piston and gaskets
Price: $550
Free UPS ground shipping in the continental USA.

Big bore cylinder fits 2001-06 YZ270F cylinder with Vertex 80mm piston, full wide skirts, great for enduro hare scrambles
Price: $500
Free UPS ground shipping in the continental USA.

Cylinder head fits 1998-2001 Yamaha YZ/WR400 or 426. features porting by Eric Gorr and multi-angle valve job, 1mm oversize Kibblewhite Black Diamond stainless steel valve kit with springs and buckets.
Price: $750
Free UPS ground shipping in the continental USA.

Cylinder head fits 2003-05 Yamaha YZ450F and YFZ450 models. This reconditioned YZF cylinder head features porting and multi-angle valve job by Eric Gorr and loaded with 1mm oversized Black Diamond valves and spring kit.
Price: $750
Free UPS ground shipping in the continental USA.

CYLINDERS SUITABLE FOR RE-SLEEVING

HONDA
1-1992-99 CR125
Price: $25

1-2000-02 CR125
Price: $25

3-1992-2001 CR250
Price: $25

1-1989-91 CR300 with powervalves and head
Price: $100

1-1985 CR125
Price: $10

KAWASAKI
3-1986-2006 KX60
Price: $15

1-1998-2006 KX100
Price: $25

5-1998-2002 KX125, casting numbers; 1852, 1881, 1960
Price: $25 each

1-1993-95 KX250
Price: $35

1-1996-99 KX250
Price: $35

KTM
1-440-550 octagonal shaped cylinder 3.642 inch bore and 5.030 inch overall length

SUZUKI
3-1991-2003 RM80 cylinders
Price: $25

1-2003-04 RM85 cylinder
Price: $25

2-RM125 1991-95 cylinder
Price: $25

1-JR50
Price: $15

YAMAHA
1-1995 YZ125
Price: $25

1-1996-97 YZ125
Price: $25

1-2001-04 YZ125
Price: $25

Telephone Orders Call 1-630-825-5645
Email: ericgorr@hotmail.com