Double to Triple Converison Compatibility
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Double to Triple Converison Compatibility
Hey,
I just bought a Serrota Ti double crank Ultegra bike and am converting it to a triple crank Ultegra. It currently has 6600 series components. It seems the 6700 components are easier to find and cheaper in some cases. I've looked at the compatibly charts and read the forums and it seems that the following combination is valid. Please let me know if you see any problem in this setup or if you see where I am changing something that does not require changing:
shifters - 6600 (new triple shifter required on left)
crank - 6700 triple (new)
front derailer - 6700 (new)
rear derailer - 6700 long (new)
bottom bracket - 6600 (existing)
chain - SRAM 1051 (new)
cassette - 6600 (existing)
brakes - 6600 (existing)
Thanks in advance
Tom
I just bought a Serrota Ti double crank Ultegra bike and am converting it to a triple crank Ultegra. It currently has 6600 series components. It seems the 6700 components are easier to find and cheaper in some cases. I've looked at the compatibly charts and read the forums and it seems that the following combination is valid. Please let me know if you see any problem in this setup or if you see where I am changing something that does not require changing:
shifters - 6600 (new triple shifter required on left)
crank - 6700 triple (new)
front derailer - 6700 (new)
rear derailer - 6700 long (new)
bottom bracket - 6600 (existing)
chain - SRAM 1051 (new)
cassette - 6600 (existing)
brakes - 6600 (existing)
Thanks in advance
Tom
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The only problem I see is if you install the new chain on a cassette with appreciable miles. You are very likely to have skipping problems.
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Thanks for the quick responses!! Is replacing the cassette more of a good practice - or is it common to see a skipping problem? I've been riding for about 20 years - through 3 or 4 bicycles and I've replaced the just the chain a couple times here and there by itself. I've not seen this problem before - although I've heard this. My riding buddy had his chain skipping on climbs not too long ago. After some observation, we determined it was in his chain rings. We replaced his chain and all the chain rings (3) and he has been problem free since then. I have nothing against changing the cassette - I just want it to be worth the dollars.
Thanks
Tom
Thanks
Tom
#5
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if you have gone thru a couple chains already, time is probably right
to replace the cassette ..
just, normal, as the wear on teeth has happened..
Rohloff, the chain Company has a service reference tool
to check that wear, but that may just be more expense,
telling you to spend the money for the new cassette anyhow.
many Bike shops would have one of those wear test tools.
to replace the cassette ..
just, normal, as the wear on teeth has happened..
Rohloff, the chain Company has a service reference tool
to check that wear, but that may just be more expense,
telling you to spend the money for the new cassette anyhow.
many Bike shops would have one of those wear test tools.
Last edited by fietsbob; 06-14-12 at 03:23 PM.
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Wouldn't a cheaper & easier as you need fewer parts option have been to get a GS rear mech, 5700 or 6700 & a SRAM 11-32 cassette & a new chain?
This would give you the same or close as ratios as most triple setups with the WiFLi type rear end, and be a whole lot cheaper that your proposed option!
This would give you the same or close as ratios as most triple setups with the WiFLi type rear end, and be a whole lot cheaper that your proposed option!
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Wouldn't a cheaper & easier as you need fewer parts option have been to get a GS rear mech, 5700 or 6700 & a SRAM 11-32 cassette & a new chain?
This would give you the same or close as ratios as most triple setups with the WiFLi type rear end, and be a whole lot cheaper that your proposed option!
This would give you the same or close as ratios as most triple setups with the WiFLi type rear end, and be a whole lot cheaper that your proposed option!
But I gotta ask... What is WiFLi?
--Tom in SoCal
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WiFLi is a SRAM trademark https://www.sram.com/sram/road/technologies/wifli_tm in very simple terms it's using the larger ratio cassette to replace the triple crank.
I've been playing with this, using a PG1050 11-32 & Shimano 105 (5700) GS RD and did a very hilly ride yesterday, and it was nice to have the 30 / 32 rather than the 27 max I previously had with a 12-27t.
I've been playing with this, using a PG1050 11-32 & Shimano 105 (5700) GS RD and did a very hilly ride yesterday, and it was nice to have the 30 / 32 rather than the 27 max I previously had with a 12-27t.
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I thought that the GS rear derailleur will have the same spec. for cassette large sprocket capacity as the non-GS road derailleur. The longer cage is only intended to have greater take up capacity for the triple chain ring. I'm not saying it won't work with the 32t sprocket, but just that it is no more likely than a regular short cage rear derailleur.
Please correct me if I'm wrong.
I put a Deore XT RD on my wife's Tiagara 9 speed setup and it works great with a 34t cassette.
Please correct me if I'm wrong.
I put a Deore XT RD on my wife's Tiagara 9 speed setup and it works great with a 34t cassette.
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Very interesting proposal. I should have posted before I purchased a large chunk of the components!! That is a great link
Tom
Tom
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