Shimano FC-1056, 105SC
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Category:  Cranksets
Name:  Shimano FC-1056, 105SC
Brand:  Shimano
Primary Group:  105SC
Model:  FC-1056
Years:  1993 - 1998
Country:  Japan
Weight:  678 grams (Actual)
Added By: JFischer on 01/07/10
Updated By: Ideale_#80 on 05/25/12
Additional Photos - click for full size
Shimano FC-1056, 105SCShimano FC-1056, 105SCShimano FC-1056, 105SCShimano FC-1056, 105SCShimano FC-1056, 105SC
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Chainring CountDoubleBCD 130mm
BB StyleSquare Taper (JIS)Pedal Threads9/16" x 20 (English)
BB Length 107mmFlutes None
Lengths 165; 170; 172.5; 175Arm/Spider MaterialAluminum Alloy
Front MarkingsShimano 105Back MarkingsShimano FC-1056 VIA Japan {2 letter date code} {crank length} S
Extractor Threading 22x1mm (Standard)  
General Information

8-speed model, looks like a painted version of the RX-100 8-speed. 

Note the flattened spider arms because the BB is reduced to 107mm.  The 7-speed FC-1055 used a 113mm BB. 

Quality:Rarity:
 
 
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Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 3)BrandGroup
Shimano FC-1055, 105SCShimano105SC
Shimano FC-1057, 105SC (triple)Shimano105SC
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
105SCShimano1990 - 1999, Road RaceView 23 Components
Details:  Shimano 105 was renamed the 105SC group when 7speed was introduced to the line.  Dual pivot brakes were also added at this time. 
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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