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Email: ericgorr@hotmail.com

Supermini and 144cc WISECO Piston and Gasket Kits

We offer fast service on big bore piston and gasket kits for late model mini and 125s from 1989-2007 Japanese and Euro dirt bikes. Prices for complete kits from $105 Click here or on the icon on the left for more information.

AMA-Legal Superminis and 144cc Big Bore 125 Kits

Learn how to make an 85 mini into an AMA-legal Supermini, or a 125 into a 144 the maximum class limit under the 2007 AMA Amateur racing rules. Prices start at only $400 and include porting, NICOM plating, Wiseco piston and gasket kits. This is a service that can be performed to your engine for Honda CR, Kawasaki KX, Suzuki RM, Yamaha YZ, plus Euro bikes like KTM, Husky, GasGas, and TM models dating from 1989-2007. Click here or on the icon on the left for more information.

250F Big Bore Cylinders and WISECO Top End Kits

Bolt-on 262cc and 290cc big bore kits for CRF, KXF, RMZ, and YZF dirt bikes. Click here or on the icon on the left for more information.

HONDA CRF290 ENGINES $2,900

A joint project between Service Honda and Forward Motion, over 100 new Honda engines available fully kitted with Vertex 290cc kit, #2 Hot Cam, Flow-Porting. Click here or on the icon on the left for more information.

HONDA CR100 ENGINES $1,500

A joint project between Service Honda and Forward Motion, over 100 new Honda engines available fully kitted with WISECO 100cc piston, and NICOM plated ported cylinder. Click here or on the icon on the left for more information.

Garage Sale of Reconditioned Performance Parts

Dirt Bike Engine Parts priced to sell. Check out these clearance items, recon 2&4 stroke cylinders and heads, ported and big bored, cylinders for sleeving, powervalve and cylinder head sets from salvage, and damaged cylinders and heads for practice performance machining priced from only $25! Click here or on the icon on the left for more information.

NICOM Cylinder Reconditioning

US Chrome has the best cylinder bore coating in the business, even better than the OEM's! Whether you're looking for an inexpensive replating service or a 2mm Wiseco big bore kit for 200-500cc motorcycles and ATVs, US Chrome has a service package to fit your budget and performance expectations. Call US Chrome direct at 1-920-922-5066.Click here or on the icon on the left for more information.

Total Engine Rebuilding 2&4 Stroke Dirt Bikes

Here are links to companies that offer Forward Motion Big Bore Kits along with engine rebuilding. TUF Powersports and Finishline Racing Engines. Click here or on the icon on the left for more information.

You can ask Eric Gorr any question about tuning and repairing dirt bikes for $2 a minute. Hundreds of mechanics and tuners worldwide call Eric on a daily basis looking for technical information that enables them to solve problems and earn a living. Eric can save you hundreds of dollars on repairs and save you valuable time when you can least afford it. Have your Visa or Mastercard ready when you call to ask your technical questions, or set-up a Paypal invoicing system for frequent callers. Click on the ASK ERIC cartoon on the right to learn more.