Exhibit 10.18

CERTAIN INFORMATION INDICATED BY [* * *] HAS BEEN DELETED FROM THIS EXHIBIT AND
FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A
REQUEST FOR CONFIDENTIAL TREATMENT UNDER RULE 406.


                                SELLERS AGREEMENT
                                -----------------


       THIS AGREEMENT, made and effective this 12th day of January, 2004, by and
between Viper Motorcycle Company (Viper) a Minnesota corporation, with its
headquarters located at 5733 International Parkway, New Hope, MN 55428, and
Patrick Racing, a California corporation with its headquarters located at 12161
Mariners Way, Garden Grove, CA 92843.

       WITNESSETH, WHEREAS, Viper is engaged in the business of developing,
producing and marketing premium motorcycles of heavyweight "cruiser" class; and

       FURTHER WHEREAS, this Agreement is a sellers agreement between Viper and
Patrick Racing to provide for the supply and/or development of V-Twin engines to
be supplied by Patrick Racing to Viper Motorcycle Company for powering Viper
cruiser motorcycles to be manufactured and marketed by Viper.

       NOW THEREFORE, for valuable consideration including the mutual promises
and covenants of the parties hereto contained in this Agreement, the parties
hereto agree as follows:

       1.     SELLERS AGREEMENT - Patrick Racing hereby agrees to supply V-Twin
              motorcycle engines to Viper on a long-term basis, including
              certain design and development by Patrick Racing as provided
              herein, under the terms of this Agreement, in consideration for
              which Viper shall pay Patrick Racing for engine products and
              engine design/development in accordance with the various payment
              terms and conditions set forth in this Agreement.

       2.     ENGINE TYPE - The V-Twin engine to be supplied by Patrick Racing
              to Viper shall be the 128" V-Twin which will be developed by
              Patrick Racing. Promptly upon execution of this Agreement by both
              parties hereto, Patrick Racing shall ship one complete polished
              125 engine with related necessary components to Viper on a COD
              payment basis in the amount of [* * *], excluding freight.
              Additional new production Patrick 128 engines shall be supplied to
              Viper in quantities and at times set forth by individual purchase
              orders, provided that any shipment shall be for a minimum of eight
              (8) engines. Subject to sufficient lead time (at least 8 weeks) on
              custom cases and cylinder heads.

       3.     Payment for Patrick Racing 128 engines shall be as follows:

              i)     [* * *] per engine, including polishing, carburetor and
                     intake manifold. Prices are excluding freight.

<PAGE>


              ii)    All engines shall have the Viper logo embossed on
                     crankcase, cylinder heads & ignition covers at an
                     additional cost. (to be determined)

              iii)   Payment is on a 50% down with the balance on a COD basis.

       Viper also shall have the right to renew the supply terms of this
       Agreement on a year-to-year basis on mutually agreed payment terms
       provided such renewal notice is given to Patrick Racing in writing at
       least 30 days prior to the end of the initial or each renewal annual
       period and the annual order requirement of a minimum 100 engines is
       maintained by Viper. The parties hereto also shall endeavor to reduce the
       price per engine unit as possible through productivity efficiencies and
       economics of scale, but in no event shall the price per engine for any
       128 c.i. engine exceed that of the initial year hereof without the
       consent of Viper. In the event of unforeseen vendor price increase
       Patrick Racing would give 30 day notice of any price increase. Both
       parties hereto acknowledge that the 128" V-twin engine is made
       exclusively for and is proprietary to Viper, contingent upon Viper
       ordering minimum of 100, 128" motors are ordered and shipped within 1
       calendar year.

       4.     EPA Emissions Certification - Regarding the 128" engine being
              developed by Patrick Racing for exclusive proprietary use of
              Viper, Patrick Racing shall assist Viper in obtaining EPA
              certification for such engine, with the cost of such certification
              to be paid by Viper.

       5.     The parties hereto shall prepare desired press releases disclosing
              this sellers agreement promptly upon it's closing; provided,
              however that no press release shall be disclosed, published or
              otherwise distributed without the review and consent thereof both
              parties hereto.

       6.     Patrick Racing Brand - Viper shall not be allowed to use the
              Patrick Racing logo, the term of brand "Patrick Racing", or any
              mention of Patrick Racing Performance in its products or the
              promotion thereof without the express approval of Patrick Racing.

       7.     Patrick Racing shall not be responsible for any product liability
              claims arising out of the sale or use of its engines for Viper
              products. Viper shall hold harmless and indemnify Patrick Racing
              in regard to any such claims affecting Patrick Racing.

       8.     NOTICES - Any notices required by either party hereto to be given
              to the other party shall be in writing sent by registered or
              certified mail, delivered in person or sent by FAX of email
              provided acknowledgement of the other party to such FAX or email
              is received by the sending party. Written notice by letter shall
              be sent to the California address of Patrick Racing in the case of
              notice to Patrick Racing, and the New Hope, Minnesota address of
              Viper in the case of notice to Viper.

       9.     DOLLAR REFERENCES - All references in this Agreement to dollar
              amounts shall mean U.S. dollars.

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<PAGE>


       10.    TERMINATION - This Agreement may be terminated as follows:

              i)     by written consent of both parties hereto; or

              ii)    by either party hereto in the event the other party
                     committed a material breach of the terms hereof, unless
                     such breach is cured by the breaching party within (30)
                     days of notification thereof in writing by the
                     non-breaching party; or

              iii)   if this sellers agreement has not been approved by the
                     Board of Directors of either party hereto as required
                     hereunder, or if the seller's agreement ends according to
                     terms.

       11.    GENERAL - This Agreement and its terms and conditions shall be
              binding upon and inure to the benefit of both parties hereto, and
              any successors and permitted assigns thereof. No assignment hereof
              is permissible without the consent of the other party.

       This Agreement constitutes the entire agreement between the parties
       hereto regarding the subject matter of this agreement, and any prior
       understandings or agreements. Whether written or oral, are hereby
       integrated into or superseded by the terms hereof. Any schedules hereto
       constitute an integral part of this Agreement. Any representations and
       warranties of either party hereto in this Agreement shall survive the
       Closing Date of the Agreement.

       This Agreement may be executed in two counterparts, each of which shall
be deemed an original but both together shall constitute one and the same
document. This Agreement may be executed by either party hereto and transmitted
by telecopy or facsimile, and if so executed an original Agreement at the same
time.

IN WITNESS WHEREOF, the parties hereto have duly executed this agreement on the
day and year first above written.

                                        Viper Motorcycle Company



                                        By:      /s/  JOHN L. FIEBELKORN
                                            ------------------------------------
                                                 John L. Fiebelkorn

                                        Its:     Chief Executive Officer
                                            ------------------------------------

                                        Patrick Racing



                                        By:      /s/  NIGEL PATRICK
                                            ------------------------------------
                                                  Nigel Patrick

                                        Its:     Chief Executive Officer
                                            ------------------------------------


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