Shimano BL-A451, Exage Sport
Main Photo
Category:  Brake Levers
Name:  Shimano BL-A451, Exage Sport
Brand:  Shimano
Primary Group:  Exage Sport
Model:  BL-A451
Years:  1988
Country:  Japan
Weight:  270 grams
Added By: JFischer on 10/10/07
Updated By: JFischer on 12/10/12
Additional Photos - click for full size
Shimano BL-A451, Exage SportShimano BL-A451, Exage SportShimano BL-A451, Exage Sport
StyleAeroReturn Spring Yes
Quick Release YesCable AdjusterNo
Lever Material AluminumLever MarkingsExage Sport
Body Material Hood/Body MarkingsShimano
Attachment Bolt AccessBehind lever  
General Information

The Exage Sport has a distinctive three section rubber insert for added grip and style.



BL-A450      (standard type)

BL-A451      (aero type)

BL-A452      (aero type, short reach)

BL-A453      (flat handle type)


Colours:      white / gray


Other versions of the brake lever:

  • BL A450: non-aero routing
  • BL A452: slightly different form
  • BL A453: different brake release mechanism

Sold with white or black hoods


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Additional Resources
Resources:Reference & ChartsCatalogs
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Shimano BL-A452, Exage SportShimanoExage Sport
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Exage SportShimano1988 - 1988, Sport & RecreationView 13 Components
Details:   Appears to be the best of the early Exage road groups.  Most likely replaced with the 500EX and RX groups later on in the 1990's. 
Brand Information(click to expand)

Shimano Model Number Prefix List:

BB Bottom Bracket BL Brake Lever BR BRake
CB Coaster Brake CJ Cassette Joint CN ChaiN
CP Chain Protecto CR Chain Ring CS Cassette Sprockets
DF chain DeFlector DH Dynamo Hub FC Front Crank
FD Front Derailleur FE Fork Ends FH FreeHub
FS Front Suspension HB HuB HD HanDle bar
HP Head Parts (Head Set) HS Handle Stem IF Inter-3 Freehub
LP LamP MF Multi Freewheel PD PeDal
RD Rear Derailleur RH Rollerbrake Hub RM RiM
RR ReflectoRs RS Rear Suspension SB Shift Brake lever (Nexus, ?)
SC Speed Calculator (cycle computer) SF Single Freewheel Freilaufritzel SG Speed chanGe hub
SH SHoes SL Shift Lever Schalthebel SM SMall parts
SP Seat Post SQ Seat Quick release SS Single Sprocket
TL TooL WH WHeel ST Shift Brake Lever (STI, Rapid Fire, etc)
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