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Category: | Bottom Brackets |
Name: | Shimano BB-7400, Dura-Ace |
Brand: | Shimano |
Primary Group: | Dura-Ace 7400 |
Model: | BB-7400 |
Years: | 1985 - 1992 |
Country: | Japan |
Weight: | 309.5 grams (avg) View Weight List |
Added By: | JFischer on 10/12/07 |
Updated By: | onespeedbiker on 06/22/14 |
Additional Photos - click for full size |
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Bearing Size/Count per side | 1/4" / 11x11 | Spindle Markings | Shimano Dura Ace [68]-W BB-7400 |
Fixed Cup Markings | Shimano Japan [threading] BB-7400 | Adjustable Cup Markings | Shimano Japan [threading] BB-7400 |
Spindle Style | Square Taper Shimano JIS Low Profile | Axle Material | Steel |
Available Threadings | English/ISO: 1.370 x 24; Italian: 36mm x 24 | Length(s) | 112mm English; 113mm Italian |
Tools Needed | Spanner, Locknut Wrench and Fixed Cup Wrench | |   |
Additional Resources |
Resources: | Reference & ChartsCatalogs |
Component Groups |
Primary Group Name | Brand | Quick Info | Browse Group Components |
Dura-Ace 7400 | Shimano | 1984 - 1995, Road Race | View 41 Components |
Details: Shimano's top of the line race quality component group in the mid 80's through the early 90's. The 7400 series Dura-Ace group saw several interations including the introduction of 6 then 7 and finally 8 speed SIS shifting. Eventually upgraded with 7410 parts before finally being completely replaced with 7700.
Dura-Ace was developed to give the professional racing cyclist a fraction-of-a-second advantage that can spell the difference between victory and defeat. Advanced functions like 8 speed SIS, Super SLR brakes and Shimano Total Integration provide the most refined feeling of control available in a group today. Ultra high-precision mechanisms, quality materials and rugged construction assure that Dura-Ace takes all the punishment that pro-level road racing can dish out. (1991 Dealer Manual). |
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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