Improved efficiency and performance

Exhibit 10.13.1

FIFTH AMENDMENT TO CREDIT AGREEMENT

     THIS AMENDMENT TO CREDIT AGREEMENT (this “Amendment”) is entered into as of March 23, 2010, by and between FALLBROOK TECHNOLOGIES INC., a Delaware corporation (“Borrower”), and WELLS FARGO BANK, NATIONAL ASSOCIATION (“Bank”).

RECITALS

     WHEREAS, Borrower is currently indebted to Bank pursuant to the terms and conditions of that certain Credit Agreement between Borrower and Bank dated as of March 31, 2007, as amended from time to time (“Credit Agreement”).

     WHEREAS, Bank and Borrower have agreed to certain changes in the terms and conditions set forth in the Credit Agreement and have agreed to amend the Credit Agreement to reflect said changes.

     NOW, THEREFORE, for valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree that the Credit Agreement shall be amended as follows:

     1. Section 1.1.(a) is hereby amended by deleting “Five Million Dollars ($5,000,000.00)” as the maximum principal amount available under the Line of Credit, and by substituting for said amount “Three Million Dollars ($3,000,000.00),” with such change to be effective upon the execution and delivery to Bank of a promissory note dated as of March 23, 2010 (which promissory note shall replace and be deemed the Line of Credit Note defined in and made pursuant to the Credit Agreement) and all other contracts, instruments and documents required by Bank to evidence such change.

     2. Section 1.6. is hereby deleted in its entirety, without substitution.

     3. Section 4.3. (d) is hereby deleted in its entirety, without substitution.

     4. Sections 4.8. and 4.11. are hereby deleted in their entirety, without substitution.

     5. Except as specifically provided herein, all terms and conditions of the Credit Agreement remain in full force and effect, without waiver or modification. All terms defined in the Credit Agreement shall have the same meaning when used in this Amendment. This Amendment and the Credit Agreement shall be read together, as one document.

     6. Borrower hereby remakes all representations and warranties contained in the Credit Agreement and reaffirms all covenants set forth therein. Borrower further certifies that as of the date of this Amendment there exists no Event of Default as defined in the Credit Agreement, nor any condition, act or event which with the giving of notice or the passage of time or both would constitute any such Event of Default.

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed as of the day and year first written above.

REVOLVING LINE OF CREDIT NOTE

$3,000,000.00		Irvine, California
		March 23, 2010

     FOR VALUE RECEIVED, the undersigned FALLBROOK TECHNOLOGIES INC. (“Borrower”) promises to pay to the order of WELLS FARGO BANK, NATIONAL ASSOCIATION (“Bank”) at its office at Growth Technology San Diego, 2030 Main Street, Suite 900, Irvine, California, or at such other place as the holder hereof may designate, in lawful money of the United States of America and in immediately available funds, the principal sum of Three Million Dollars ($3,000,000.00), or so much thereof as may be advanced and be outstanding, with interest thereon, to be computed on each advance from the date of its disbursement as set forth herein.

DEFINITIONS:

     As used herein, the following terms shall have the meanings set forth after each, and any other term defined in this Note shall have the meaning set forth at the place defined:

     (a) “Base Rate” means, for any day, a fluctuating rate equal to the highest of: (i) the Prime Rate in effect on such day, (ii) a rate determined by Bank to be one and one-half percent (1.50%) above Daily One Month LIBOR, and (iii) the Federal Funds Rate plus one and one-half percent (1.50%).

     (b) “Daily One Month LIBOR” means, for any day, the rate of interest equal to LIBOR then in effect for delivery for a one (1) month period.

     (c) “Federal Funds Rate” means, for any day, the rate per annum equal to the weighted average of the rates on overnight Federal funds transactions with members of the Federal Reserve System arranged by Federal funds brokers for the immediately preceding day, as published by the Federal Reserve Bank of New York; provided that if no such rate is so published on any day, then the Federal Funds Rate for such day shall be the rate most recently published.

     (d) “LIBOR” means the rate per annum (rounded upward, if necessary, to the nearest whole 1/8 of 1%) and determined pursuant to the following formula:

LIBOR =		Base LIBOR
		100% − LIBOR Reserve Percentage

          (i) “Base LIBOR” means the rate per annum for United States dollar deposits quoted by Bank for the purpose of calculating effective rates of interest for loans making reference to the Daily One Month LIBOR Rate, as the Inter-Bank Market Offered Rate in effect from time to time for delivery of funds for one (1) month in amounts approximately equal to the principal amount of such loans. Borrower understands and agrees that Bank may base its quotation of the Inter-Bank Market Offered Rate upon such offers or other market indicators of the Inter-Bank Market as Bank in its discretion deems appropriate including, but not limited to, the rate offered for U.S. dollar deposits on the London Inter-Bank Market.

          (ii) “LIBOR Reserve Percentage” means the reserve percentage prescribed by the Board of Governors of the Federal Reserve System (or any successor) for “Eurocurrency Liabilities” (as defined in Regulation D of the Federal Reserve Board, as amended), adjusted by Bank for expected changes in such reserve percentage during a one (1) month period.

     (e) “Prime Rate” means at any time the rate of interest most recently announced within Bank at its principal office as its Prime Rate, with the understanding that the Prime Rate is one of Bank’s base rates and serves as the basis upon which effective rates of interest are calculated for those loans making reference thereto, and is evidenced by the recording thereof after its announcement in such internal publication or publications as Bank may designate.

INTEREST:

     (a) Interest. The outstanding principal balance of this Note shall bear interest (computed on the basis of a 360-day year, actual days elapsed) at a rate per annum equal to the Base Rate in effect from time to time.

     (b) Payment of Interest. Interest accrued on this Note shall be payable on the last day of each month, commencing March 31, 2010.

     (c) Default Interest. From and after the maturity date of this Note, or such earlier date as all principal owing hereunder becomes due and payable by acceleration or otherwise, or at Bank’s option upon the occurrence, and during the continuance of an Event of Default, the outstanding principal balance of this Note shall bear interest at an increased rate per annum (computed on the basis of a 360-day year, actual days elapsed) equal to four percent (4%) above the rate of interest from time to time applicable to this Note.

BORROWING AND REPAYMENT:

     (a) Borrowing and Repayment. Borrower may from time to time during the term of this Note borrow, partially or wholly repay its outstanding borrowings, and reborrow, subject to all of the limitations, terms and conditions of this Note and of any document executed in connection with or governing this Note; provided however, that the total outstanding borrowings under this Note shall not at any time exceed the principal amount stated above. The unpaid principal balance of this obligation at any time shall be the total amounts advanced hereunder by the holder hereof less the amount of principal payments made hereon by or for Borrower, which balance may be endorsed hereon from time to time by the holder. The outstanding principal balance of this Note shall be due and payable in full on December 31, 2010.

     (b) Advances. Advances hereunder, to the total amount of the principal sum stated above, may be made by the holder at the oral or written request of (i) William Klehm or Nicole Nicks, any one acting alone, who are authorized to request advances and direct the disposition of any advances until written notice of the revocation of such authority is received by the holder at the office designated above, or (ii) any person, with respect to advances deposited to the credit of any deposit account of Borrower, which advances, when so deposited, shall be conclusively presumed to have been made to or for the benefit of Borrower regardless of the fact that persons other than those authorized to request advances may have authority to draw

against such account. The holder shall have no obligation to determine whether any person requesting an advance is or has been authorized by Borrower.

     (c) Application of Payments. Each payment made on this Note shall be credited first, to any interest then due and second, to the outstanding principal balance hereof.

EVENTS OF DEFAULT:

     This Note is made pursuant to and is subject to the terms and conditions of that certain Credit Agreement between Borrower and Bank dated as of March 31, 2007, as amended from time to time (the “Credit Agreement”). Any default in the payment or performance of any obligation under this Note, or any defined event of default under the Credit Agreement, shall constitute an “Event of Default” under this Note.

MISCELLANEOUS:

     (a) Remedies. Upon the occurrence of any Event of Default, the holder of this Note, at the holder’s option, may declare all sums of principal and interest outstanding hereunder to be immediately due and payable without presentment, demand, notice of nonperformance, notice of protest, protest or notice of dishonor, all of which are expressly waived by Borrower, and the obligation, if any, of the holder to extend any further credit hereunder shall immediately cease and terminate. Borrower shall pay to the holder immediately upon demand the full amount of all payments, advances, charges, costs and expenses, including reasonable attorneys’ fees (to include outside counsel fees and all allocated costs of the holder’s in-house counsel), expended or incurred by the holder in connection with the enforcement of the holder’s rights and/or the collection of any amounts which become due to the holder under this Note, and the prosecution or defense of any action in any way related to this Note, including without limitation, any action for declaratory relief, whether incurred at the trial or appellate level, in an arbitration proceeding or otherwise, and including any of the foregoing incurred in connection with any bankruptcy proceeding (including without limitation, any adversary proceeding, contested matter or motion brought by Bank or any other person) relating to Borrower or any other person or entity.

     (b) Obligations Joint and Several. Should more than one person or entity sign this Note as a Borrower, the obligations of each such Borrower shall be joint and several.

     (c) Governing Law. This Note shall be governed by and construed in accordance with the laws of the State of California.

     IN WITNESS WHEREOF, the undersigned has executed this Note as of the date first written above.