Advice on drivetrain change.
09-02-16 | 06:26 AM
#26
Senior Member
Joined: May 2013
Posts: 186
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From: Westminster, CO
Bikes: 2016 Hong Fu Gravel Bike, 2015 Motobecane Turino Team
check this out - durianrider is all about climbing and cadence, he advocates HUGE cassettes
https://www.youtube.com/watch?v=d7OAYFYdy7g
https://www.youtube.com/watch?v=d7OAYFYdy7g
LMAO
09-02-16 | 09:00 AM
#28
Senior Member
Joined: May 2015
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From: Buffalo, NY
Bikes: s-1
09-02-16 | 02:25 PM
#29
In the wind
Joined: Aug 2006
Posts: 1,358
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From: Calgary AB
Bikes: Giant TCR Advanced Team, Lemond Buenos Aires, Giant TCX, Miyata 1000LT
You may not need the new derailleur. I'm running a 12-30 cassette with a standard cage duraace rd, had to adjust the B screw all the way, but it works. That would be the cheapest option.
I'm thinking of replacing the drivetrain on my giant tcr c2 2007.
It has 39/53 crank and a 12-27 cassette. I'm looking to improve my climbing gears.
The options are to put on a 12-30 cassette. To do so will require a new derailleur(shimano 6700 med cage) The chain and cassette will need to be replaced soon anyway. Or replace the chainrings to a 36/52. I'm not sure if that's possible.
The shop said option 1 would be about us$250. Would I gain enough for the expense? They seamed reluctant to explore the second option.
I could buy a new bike but that may not go over well with the CFO
It has 39/53 crank and a 12-27 cassette. I'm looking to improve my climbing gears.
The options are to put on a 12-30 cassette. To do so will require a new derailleur(shimano 6700 med cage) The chain and cassette will need to be replaced soon anyway. Or replace the chainrings to a 36/52. I'm not sure if that's possible.
The shop said option 1 would be about us$250. Would I gain enough for the expense? They seamed reluctant to explore the second option.
I could buy a new bike but that may not go over well with the CFO
09-02-16 | 03:10 PM
#30
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Joined: Oct 2015
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Bikes: 2015 Workswell 066, 2017 Workswell 093, 2014 Dawes Sheila, 1983 Cannondale 500, 1984 Raleigh Olympian, 2007 Cannondale Rize 4, 2017 Fuji Sportif 1 LE
I have seen it recommended that one reverse the B-screw to gain even more range. If it doesn't work, no loss no cost, and if it does, it saves the cost of a new derailleur.
09-05-16 | 05:39 PM
#31
Thread Starter
Senior Member
Joined: May 2008
Posts: 320
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From: Rockland County, NY
Bikes: Giant TCRC2 2007, Dahon MU P8 2012, GT Avalance 2011
First off thanks for all the replys very informitive. Second sorry for not responding sooner work was busy over the weekend.
Some of these details are not familar to me. the BB is a 130 and it's a 10 speed cassette.
I'm not in a hurry so I'll head down to the shop and discuss the long cage derailleur and full drivetrain change options.
Again thanks.
Some of these details are not familar to me. the BB is a 130 and it's a 10 speed cassette.
I'm not in a hurry so I'll head down to the shop and discuss the long cage derailleur and full drivetrain change options.
Again thanks.
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