UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 12B-25

                           NOTIFICATION OF LATE FILING

                                                         SEC File Number 0-19357

(Check One):  [X] Form 10-K    Form 20-F    Form 11-K    Form 10-Q   Form N-SAR

                        For Period Ended: March 29, 2003

                         Transition Report on Form 10-K
                         Transition Report on Form 20-F
                         Transition Report on Form 11-K
                         Transition Report on Form 10-Q
                         Transition Report on Form N-SAR

             For the Transition Period Ended: ______________________

      NOTHING IN THIS FORM SHALL BE CONSTRUED TO IMPLY THAT THE COMMISSION
                 HAS VERIFIED ANY INFORMATION CONTAINED HEREIN.

If the notification relates to a portion of the filing checked above, identify
the item(s) to which the notification relates:


PART I--REGISTRANT INFORMATION

Monro Muffler Brake, Inc.
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Full Name of Registrant

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Former Name if Applicable

200 Holleder Parkway
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Address of Principal Executive Office (Street and Number)

Rochester, New York  14615
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City, State and Zip Code

PART II--RULES 12b-25 (b) AND (c)

If the subject report could not be filed without unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed. (Check box if appropriate.)

     (a)  The reasons described in reasonable detail in Part III of this form
          could not be eliminated without unreasonable effort or expense;


[X]  (b)  The subject annual report, semi-annual report, transition report on
          Form 10-K, Form 20-F, 11-K or Form N-SAR, or portion thereof, will be
          filed on or before the fifteenth calendar day following the prescribed
          due date; or the subject quarterly report or transition report on Form
          10-Q, or portion thereof will be filed on or before the fifth calendar
          day following the prescribed due date; and

     (c)  The accountant's statement or other exhibit required by Rule 12b-25(c)
          has been attached if applicable.

PART III--NARRATIVE

State below in reasonable detail the reasons why Forms 10-K, 20-F, 11-K, 10-Q,
N-SAR, or the transition report portion thereof, could not be filed within the
prescribed time period.

The Registrant's Annual Report on Form 10-K for the year ended March 29, 2003
could not be filed within the prescribed time period due to delays experienced
with completion and audit of the Company's financial statements.


PART IV--OTHER INFORMATION

     (1)  Name and telephone number of person to contact in regard to this
          notification:

          Catherine D'Amico, Executive Vice President-Finance   (585) 647-6400
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               (Name)                           (Area Code) (Telephone Number)

     (2)  Have all other periodic reports required under Section 13 or 15(d) of
          the Securities Exchange Act of 1934 or Section 30 of the Investment
          Company Act of 1940 during the preceding 12 months or for such shorter
          period that the registrant was required to file such report(s) been
          filed? If the answer is no, identify report(s). [X] Yes [ ] No

     (3)  Is it anticipated that any significant change in results of operations
          from the corresponding period for the last fiscal year will be
          reflected by the earnings statements to be included in the subject
          report or operation thereof? [ ] Yes [X] No

If so, attach an explanation of the anticipated change, both narratively and
quantitatively, and, if appropriate, state the reasons why a reasonable estimate
of the results cannot be made.

                            Monro Muffler Brake, Inc.
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                  (Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned
thereunto duly authorized.


Dated: June 30, 2003             By:  /s/ Catherine D'Amico
                                      -----------------------------------
                                      Catherine D'Amico,
                                      Executive Vice President-Finance