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Shimano Dura-Ace Hollowtech Double Crankset
I have a stock Giant OCR2 from 2006 (I think), 105 components....
By Dennis Berkemeier
May 20, 2009
I have a stock Giant OCR2 from 2006 (I think), 105 components. It has a 3 sprocket crank. Someone told me that changing to a 2 sprocket would make for better shifting, and that I could go down to a 2 with no modifications. Is that true, and would this work? Would I need anything else?
View Details: Shimano Dura-Ace Hollowtech Double Crankset
Helpful Votes: 0 Yes
By Christian Johnson
Ranked #159 - Drivetrain
May 20, 2009
Not completely true. 1st, if you change to this particular crankset you will need to get a matching bottom bracket. 2nd, you might be able to tune the front derailleur to shift a double instead of a triple but it will not be very smooth or consistent, you would be better off getting a front derailleur for a double instead. 3rd, your current rear derailleur is a long cage model which is used to handle the longer chain req'd by triples. Running a double would shorten the chain and cause your current derailleur to not function properly.
Helpful Votes: 0 Yes
Tech Specs:
- Material:
- [Arms] Hollowtech forged aluminum; [Chainrings] machined aluminum; [Spindle] Cro-Moly
- Arm Length:
- 170, 172.5, 175mm
- Gear Ratio:
- [170mm] 53 x 42T; [172.5 and 175mm] 53 x 42T, 54 x 42T
- Bottom Bracket:
- Integrated, sold separately
- Weight:
- [inc. BB] 740g
- Recommended Use:
- Road cycling, racing, ogling
- Manufacturer Warranty:
- 2 Years
- Country of Origin:
- China
Change me.