Shimano Specifications

Front Chainwheel

Series	Dura Ace	Ultegra		105SC		RX100		RSX			300EX
Feature	FC-7700	FC-6500	FC-6503	FC-1056	FC-1057	FC-A551	FC-A550-T	FC-A415	FC-A410	FC-A413	FC-A300
Chain ring	53-42T, 52-39T, 53-39T	53-42T, 52-39T, 53-39T	52-42-30T	53-42T, 53-39T, 52-42T	52-42-30T	53-42T, 53-39T, 52-42T	52-42-30T	52-42T	46-36T	46-36-26T	52-42T
Chain	Super narrow HG	Super narrow HG	Super narrow HG	HG	HG	HG	HG	HG	HG	HG	HG
PCD (mm)	130	130	130/74	130	130/74	130	130/74	130	110	110/74	130
Chain Guard							Available			Available	Available
Bottom Bracket	BB-7700	BB-6500	BB-6500	BB-UN52	BB-UN52	BB-UN52	BB-UN52	BB-UN52	BB-LP26	BB-LP26	BB-CS12
Chain line 43.5 (mm)	109.5	109.5		MM107		MM107		MM107	MM110		D-H
Chain line 45 (mm)			118.5		XL118		D/NL			XL118
Crank Arm Lengths 165	X	X	X	X		X		X
167.5	X	X	X	X
170	X	X	X	X	X	X	X	X	X	X	X
172.5	X	X	X	X
175	X	X	X	X	X	X	X	X	X	X	X
177.5	X
180	X
Crank arm	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Painted	Aluminum /Painted	Aluminum /Polished	Aluminum /Polished	Aluminum /Polished	Aluminum /Polished	Aluminum /Polished	Aluminum /Polished
Top	Aluminum /Nickel Plated	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Steel /Pearl Bright
Middle			Aluminum /Anodized		Aluminum /Anodized		Aluminum /Anodized			Steel /Pearl Bright
Low	Aluminum /Nickel Plated	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Aluminum /Anodized	Steel /Pearl Bright	Aluminum /Anodized	Steel /Pearl Bright	Steel /Pearl Bright

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