Document:

<PAGE>

                                                                   Exhibit 10.23

                              AMENDED AND RESTATED
                                 LOAN AGREEMENT

      THIS AMENDED AND RESTATED LOAN AGREEMENT is made and entered into as of
this 26th day of May, 2004, by and between Redline Performance Products, Inc., a
Minnesota corporation, (hereinafter referred to as the "Borrower") with an
address of 1120 Wayzata, Boulevard East, Suite 200, Wayzata, MN 55391
(Borrower); and Community National Bank, a United States corporation, (Lender)
with an address of 5481 St. Croix Trail, North Branch, MN 55056.

                                    RECITALS:

      A.    Borrower has entered into a Contract Assembly Agreement with
Interstate Companies, Inc. ("Assembler") dated effective September 26, 2003
(Assembly Agreement) pursuant to which the Assembler will assemble the
Borrower's snowmobiles at an assembly facility located in the Fargo, North
Dakota metropolitan area ("Project").

      B.    Lender has loaned to Borrower up to a total maximum amount of TWO
MILLION AND NO/100THS Dollars ($2,000,000.00), ("Loan"), and the parties now
desire to amend and restate the terms of the Loan, which Loan is for the
assembly and production of snowmobiles sold to dealers that are located in the
United States and that have been approved by GE Commercial Distribution Finance
Corporation ("Unit(s)") pursuant to the Assembly Agreement, which Loan is
evidenced by an Amended and Restated Renewal Promissory Note ("Renewal
Promissory Note") from Borrower to Lender in the principal amount of One Million
Nine Hundred Thirteen Thousand and No/100ths Dollars ($1,913,000.00) and is
secured by an amended and restated security interest created by security
agreements dated November 26, 2003, March 30, 2004, and May 26, 2004 in the
property of Borrower ("Security Agreement"), and a Third Party Pledge and
Security Agreement assigning all of the Borrower's right, title, and

<PAGE>

interest in Certificate of Deposit number ___________ on deposit at Community
National Bank dated ____________ in the principal amount of Four Hundred
Thousand and No/100ths Dollars ($400,000.00) ("Third Party Pledge"). Payment of
the Renewal Promissory Note and performance of Borrower's obligations under the
Loan Documents are guaranteed by Sun Capital, LLC; Michael T. Montplaisir; Steve
J. Campbell; Terry J. Welle; Michael J. Hofer; Jerome J. Bushman; and Derrick J.
Bushman ("Guaranties"). This Renewal Promissory Note is further secured by an
assignment of proceeds between Borrower and GE Commercial Distribution Finance
Corporation ("Assignment"). Borrower further agrees that all payments to be made
pursuant to the contract between Redline Performance Products, Inc. and GE
Commercial Distribution Finance Corporation effective as of October 10, 2003,
(hereinafter referred to as "GE Contract") shall be made to Lender until this
Note is paid in full, and Borrower shall not direct those payments to any other
parties until this note is paid in full. All of such documents are hereinafter
referred to as the "Loan Documents" and are incorporated herein by reference.

      C.    The parties hereto desire to set forth the terms and conditions on
which the Loan shall be made.

                                   AGREEMENT

      In consideration of the above recitals, of Lender's agreement to lend
funds to Borrower and of the mutual agreements set forth below, the parties
agree as follows:

      1.)   All capitalized terms not otherwise defined in this Agreement shall
have the meanings given to them in the Loan Documents. All proceeds from the
Loan shall be used exclusively for the Project. Borrower further understands
that Lender intends to sell all or a part of the Loan to one or more
participants and, subject to compliance by all such parties with the
confidentiality provisions set forth in this Agreement, Borrower consents to the
dissemination of

                                       2.
<PAGE>

financial and other information concerning Borrower, Guarantor and the Project
to the contemplated and/or actual participants. The word "Unit" as set forth in
the Loan Documents shall mean one snowmobile sold to a dealer located in the
United States that has been approved by GE Commercial Distribution Finance
Corporation.

      2.)   Lender has loaned the principal sum of Two Million and No/100ths
Dollars ($2,000,000.00) to Borrower, which was due and payable on the date
hereof, and which has a present principal balance owing of One Million Nine
Hundred Thirteen Thousand and No/100ths Dollars ($1,913,000.00). Lender and
Borrower desire to continue the loan in the same principal amount pursuant to
the terms and conditions set forth in the Renewal Promissory Note and the other
Loan Documents. In order to continue the Loan, Borrower hereby agrees to comply
with the following conditions:

      (a)   Borrower shall provide all documentation required by any of the Loan
      Documents, Lender's loan commitment letter and/or Lender's normal banking
      requirements.

      (b)   Borrower shall not be in default on any of the terms or conditions
      of the Loan Documents.

      (c)   Borrower shall provide monthly inventory reports to Lender, which
      shall include any obsolete inventory.

      (d)   Borrower shall provide monthly financial statements, including
      accounts receivable and payable statements.

      (e)   Borrower shall provide reporting to the Bank on all shipped units on
      a weekly basis.

                                       3.
<PAGE>

      (f)   All interest outstanding as of the date of this Loan Agreement owed
      by Borrower to Lender is paid in full.

      3.)   Payments of interest only shall be made on the Renewal Promissory
Note commencing on June 26, 2004, and shall continue on the same date of each
month thereafter. On and after the date of the Renewal Promissory Note, Borrower
shall also pay to Bank the following principal payments:

      A.    An amount equal to Three Thousand and No/100ths Dollars ($3,000.00)
of the proceeds received from the sale of each snowmobile manufactured by
Borrower to be sold to a dealer located in the United States that has been
approved by GE Commercial Distribution Finance Corporation (hereinafter referred
to as a "Unit") for the first Twenty-five (25) Units sold; and

      B.    Following the sale of the first Twenty-five (25) Units, and the
application of the payments therefrom, the principal balance of this note shall
be One Million Eight Hundred Thirty Eight Thousand and No/100ths Dollars
($1,838,000.00). Thereafter the Bank is to receive Seven Thousand and No/100ths
Dollars ($7,000.00) from the sale of each Unit sold to be applied to the
outstanding principal balance of this Note, and a Note of the same date in the
original principal amount of Five Hundred Thousand and No/100ths Dollars
($500,000.00) until Borrower has repaid the entire principal balances plus
interest on both Notes. Said Seven Thousand and No/100ths Dollars ($7,000.00)
payments are to be applied on a prorata format according to the remaining
principal balances of both Notes, with 78.61%, or Five Thousand Five Hundred
Three and No/100ths Dollars ($5,503.00), of each Seven Thousand and

                                       4.
<PAGE>

No/100ths Dollars ($7,000.00) payment to be applied to this Note, and 21.39%, or
One Thousand Four Hundred Ninety Seven and No/100ths Dollars ($1,497.00), of
each Seven Thousand and No/100ths Dollars ($7,000.00) payment to be applied to
the Five Hundred Thousand and No/100ths Dollars ($500,000.00) Note of same date.

      C.    If not sooner paid, all principal and interest shall be due and
payable in full on the renewal Promissory Note on November 26, 2004, as a
BALLOON PAYMENT. The Renewal Promissory Note may be paid in full or in part at
any time without penalty. Any partial payment shall be applied first to
outstanding interest and the balance against principal.

      4.)   Borrower shall pay to Lender an origination fee in the amount of the
Twenty Thousand and No/100ths Dollars ($19,130.00) to be paid as follows; Eight
Thousand and No/100ths Dollars ($8,000.00) to be paid upon execution of this
agreement, and Eleven Thousand One Hundred Thirty and No/100ths Dollars
($11,130.00) to be paid within fifteen days of the date of the execution of this
agreement.

      5.)   It is expressly understood and agreed that Lender does not assume
any liability or responsibility for the satisfactory completion of the Project,
for the adequacy of funds advanced or disbursed, or for the quality of the work
completed.

      6.)   The Parties agree that any material default in the terms of any one
of the Loan Documents and this Agreement which is not cured with Ten (10)
business days of receipt of notice of default shall be a default in the terms of
any and all of the Loan Documents.

      7.)   THE LENDER AND BORROWER HEREBY VOLUNTARILY, KNOWINGLY AND
INTENTIONALLY WAIVE ANY AND ALL RIGHTS TO TRIAL BY JURY IN ANY LEGAL ACTION OR
PROCEEDING ARISING UNDER THE LOAN DOCUMENTS OR CONCERNING THE INDEBTEDNESS
EVIDENCED HEREBY AND/OR ANY COLLATERAL SECURING SUCH INDEBTEDNESS, REGARDLESS OF
WHETHER SUCH ACTION OR PROCEEDING CONCERNS ANY CONTRACTUAL OR TORTIOUS OR OTHER
CLAIM. THE BORROWER ACKNOWLEDGES THAT THIS WAIVER OF JURY TRIAL IS A MATERIAL
INDUCEMENT TO THE LENDER IN EXTENDING CREDIT TO THE BORROWER, THAT THE LENDER
WOULD NOT HAVE EXTENDED SUCH CREDIT WITHOUT THIS JURY TRIAL WAIVER, AND THAT THE
BORROWER HAS BEEN REPRESENTED BY AN ATTORNEY OR HAS HAD AN OPPORTUNITY TO

                                       5.
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CONSULT WITH AN ATTORNEY IN CONNECTION WITH THIS JURY TRIAL WAIVER AND
UNDERSTANDS THE LEGAL EFFECT OF THIS WAIVER.

      8.)   Lender agrees that all information disclosed by Borrower to the
Lender regarding the Borrower and its products, business plans, business
opportunities, finances, research, development, know-how or personnel, and
confidential information disclosed to the Borrower by third parties, shall be
considered "Confidential Information." Lender agrees to maintain the confidence
of the Confidential Information and to prevent its unauthorized dissemination,
and not to use the Confidential Information for any purpose other than
consideration of the proposed business relationship with Borrower. Confidential
Information shall not, however, include information which: (i) is now or
subsequently becomes generally known or available by publication, commercial use
or otherwise, through no fault of the Lender; or (ii) is lawfully obtained by
Lender from a third party without violation of a confidentiality obligation. All
Confidential Information remains the property of the Borrower and no license or
other rights in the Confidential Information is granted hereby. Lender agrees to
return to the Borrower immediately upon the Lender's request all Confidential
Information, including but not limited to all documentation, notes, plans and
copies thereof. This Agreement and the provisions hereof shall be Confidential
Information, provided that the Borrower may disclose the terms of this Agreement
and the Agreement to the extent reasonably required to comply with Borrower's
disclosure obligations under the Securities Exchange Act of 1934, as amended,
and regulations promulgated thereunder.

      9.)   This agreement shall be governed by the laws of the State of
Minnesota.

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

                                         BORROWER:

                                         Redline Performance Products, Inc.

                                         By: /s/ Mark A. Payne
                                         ---------------------------------------
                                         Mark A. Payne, President & Chief
                                         Financial Officer

                                         LENDER:

                                         Community National Bank

                                         By: /s/ Curtis A. Martinson
                                         ---------------------------------------
                                         Curtis A. Martinson
                                         Executive Vice President

                                       6.<PAGE>

                                                                   Exhibit 10.24

                              AMENDED AND RESTATED
                             RENEWAL PROMISSORY NOTE

AMOUNT: $1,913,000.00                                         Date: May 26, 2004

      FOR VALUE RECEIVED, Redline Performance Products, Inc., a Minnesota
corporation, (hereinafter referred to as the "Borrower") with an address of 1120
Wayzata, Boulevard East, Suite 200, Wayzata, MN 55391, promises to pay to the
order of Community National Bank, a banking corporation, which is organized and
existing under the laws of the United States (hereinafter referred to as the
"Bank"), at 5481 St. Croix Trail, North Branch, Minnesota 55056 or at such other
place as the holder hereof may hereafter from time to time designate in writing,
in lawful money of the United States of America and in immediately available
funds, the principal sum of ONE MILLION NINE HUNDRED THIRTEEN THOUSAND AND
NO/100THS DOLLARS ($1,913,000.00), or such amounts as may be advanced in the
discretion of the Bank and in accordance with the Loan Agreement, together with
interest on the unpaid principal balance of this Amended and Restated Renewal
Promissory Note (hereinafter referred to as "Promissory Note") outstanding from
time to time, from the date hereof until this Promissory Note is fully paid
according to the terms hereof, at an annual rate that shall at all times be
equal to a fixed rate of nine percent (9%), computed on the basis of the actual
number of days elapsed in a 360 day year.

      This Note amends, restates, replaces and supercedes that certain note
executed by Borrower in favor of Lender dated November 26, 2003, in the original
principal amount of TWO MILLION AND NO/100THS Dollars ($2,000,000.00) with an
outstanding principal balance of One Million Nine Hundred Thirteen Thousand and
No/100ths Dollars ($1,913,000.00) as of the date hereof, which amount is
incorporated herein.

                                      -1-
<PAGE>

      Payments of interest only shall be made on this Promissory Note commencing
on June 26, 2004, and shall continue on the same date of each month thereafter.
On and after the date of this Promissory Note, Borrower shall also pay to Bank
the following principal payments:

            A.    An amount equal to Three Thousand and No/100ths Dollars
      ($3,000.00) of the proceeds received from the sale of each snowmobile
      manufactured by Borrower to be sold to a dealer located in the United
      States that has been approved by GE Commercial Distribution Finance
      Corporation (hereinafter referred to as a "Unit") for the first
      Twenty-five (25) Units sold; and

            B.    Following the sale of the first Twenty-five (25) Units, and
      the application of the payments therefrom, the principal balance of this
      note shall be One Million Eight Hundred Thirty Eight Thousand and
      No/100ths Dollars ($1,838,000.00). Thereafter the Bank is to receive Seven
      Thousand and No/100ths Dollars ($7,000.00) from the sale of each Unit sold
      to be applied to the outstanding principal balance of this Note, and a
      Note of the same date in the original principal amount of Five Hundred
      Thousand and No/100ths Dollars ($500,000.00) until Borrower has repaid the
      entire principal balances plus interest on both Notes. Said Seven Thousand
      and no/100ths Dollars ($7,000.00) payments are to be applied on a prorata
      format according to the remaining principal balances of both Notes, with
      78.61%, or Five Thousand Five Hundred Three and No/100ths Dollars
      ($5,503.00), of each Seven Thousand and No/100ths Dollars ($7,000.00)
      payment to be applied to this Note, and 21.39%, or One Thousand Four
      Hundred Ninety Seven and No/100ths Dollars ($1,497.00), of each Seven
      Thousand and no/100ths Dollars ($7,000.00) payment to be applied to the
      Five Hundred Thousand and No/100ths Dollar ($500,000.00) Note of same
      date.

                                      -2-
<PAGE>

            C.    If not sooner paid, all principal and interest shall be due
      and payable in full on this Promissory Note on November 26, 2004, as a
      BALLOON PAYMENT. This Promissory Note may be paid in full or in part at
      any time without penalty. Any partial payment shall be applied first to
      outstanding interest and the balance against principal.

      This Promissory Note is secured by a security interest created by security
agreements dated November 26, 2003, March 30, 2004 and May 26, 2004 in the
property of Borrower ("Security Agreement") and a Third Party Pledge and
Security Agreement assigning all of the Borrower's and Pledgor's right, title,
and interest in Certificate of Deposit number _______ on deposit at Community
National Bank dated ______________ in the principal amount of Four Hundred
Thousand and No/100ths Dollars ($400,000.00). Payment of this Promissory Note
and performance of Borrower's obligations under the Loan Documents are
guaranteed by Sun Capital, LLC; Michael T. Montplaisir; Steve J. Campbell; Terry
J. Welle; Michael J. Hofer, Jerome J. Bushman; and Derrick J. Bushman;
("Guaranties"). The parties hereto have also entered a Loan Agreement ("Loan
Agreement") on the same day as this Promissory Note. This note is also secured
by an assignment of proceeds between Borrower and GE Commercial Distribution
Finance Corporation ("Assignment"). All of such documents are hereinafter
referred to as the "Loan Documents" and are incorporated herein by reference.

      Upon the event of default in the terms of this Promissory Note or the Loan
Documents, the Bank shall give notice in writing to the Borrower by mailing said
notice by U.S. Mail to the last known address of the Borrower advising them of
the event of default. In the event the default is not cured within thirty (30)
days of mailing of the notice, the Bank may proceed with such remedies as are
allowed by law, this Promissory Note and/or the Loan Documents.

                                      -3-
<PAGE>

      If an event of default occurs in the terms of the Loan Documents, the
entire principal balance of this Promissory Note, with all accrued interest
thereon, shall, at the option of the Bank, then or any time thereafter, become
immediately due and payable. Any failure of the Bank to exercise such option to
accelerate this Promissory Note at any time shall not constitute a waiver of the
right to exercise the same right to acceleration at any subsequent time.

      In the event any payment is not made when due and is more than ten (10)
business days late, the Borrower shall pay a penalty in the amount of five
percent (5%) of the delinquent amount.

      If this Promissory Note is not paid when due, regardless of how such
maturity may be brought about, or is collected or attempted to be collected by
the initiation, prosecution or defense of any suit, in any district court,
probate, bankruptcy court or other judicial proceeding, or is placed in the
hands of an attorney for collection, then the Borrower shall pay in addition to
all other amounts owing hereunder all court costs and reasonable attorneys' fees
incurred by the holder hereof in connection therewith, including, but not
limited to, reasonable attorneys' fees for trial or for the pursuance of, or
defense of, any appellate procedure.

      This Promissory Note may be prepaid in whole or in part, at any time
without Penalty or Premium. All makers, endorsers, sureties, guarantors and
accommodation parties hereby waive presentment, dishonor, notice of dishonor and
protest, and consent to any and all extensions, renewals, substitutions and
alterations of any of the terms of this Promissory Note and any documents
related hereto, including Loan Documents, and to the release of or failure by
the Bank to exercise any rights against any party liable for or any property
securing payment thereof.

      This Promissory Note shall be governed by and construed under the laws of
the State of Minnesota.

                                      -4-
<PAGE>

      THE BANK AND BORROWER HEREBY VOLUNTARILY KNOWINGLY AND INTENTIONALLY WAIVE
ANY AND ALL RIGHTS TO TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING ARISING
UNDER THE LOAN DOCUMENTS OR CONCERNING THE INDEBTEDNESS EVIDENCED HEREBY AND/OR
ANY COLLATERAL SECURING SUCH INDEBTEDNESS, REGARDLESS OF WHETHER SUCH ACTION OR
PROCEEDING CONCERNS ANY CONTRACTUAL OR TORTIOUS OR OTHER CLAIM. THE BORROWER
ACKNOWLEDGES THAT THIS WAIVER OF JURY TRIAL IS A MATERIAL INDUCEMENT TO THE BANK
IN EXTENDING CREDIT TO THE BORROWER, THAT THE BANK WOULD NOT HAVE EXTENDED SUCH
CREDIT WITHOUT THIS JURY TRIAL WAIVER, AND THAT THE BORROWER HAS BEEN
REPRESENTED BY AN ATTORNEY OR HAS HAD AN OPPORTUNITY TO CONSULT WITH AN ATTORNEY
IN CONNECTION WITH THIS JURY TRIAL WAIVER AND UNDERSTANDS THE LEGAL EFFECT OF
THIS WAIVER.

      This instrument executed the date and year set forth above.

                                         REDLINE PERFORMANCE PRODUCTS, INC.

                                         By: /s/ Mark A. Payne
                                             -----------------------------------
                                             Mark A. Payne, President & Chief
                                             Financial Officer

                                         LENDER:

                                         COMMUNITY NATIONAL BANK

                                         By: /s/ Curtis A. Martinson
                                             -----------------------------------
                                             Curtis A. Martinson
                                             Executive Vice President

                                      -5-

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