5700 RD + 6700 Cassette compatability
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5700 RD + 6700 Cassette compatability
I currently have 5700 shifters/FD/RD along with a 4600 cassette (12/28), and would like to 6700 cassette (11/28). I was looking at the PB product page for the 6700 cassette, and it says "11-28T size requires use of the Shimano Ultegra RD-6700 Rear Derailleur or Shimano Dura-Ace RD-7900 Rear Derailleur." Anyone know if I can use my 5700 RD despite what the PB site says? I'm curious bc there is also a 5700 cassette in 11/28 that's available as well.
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Ignore PBK. It'll work just fine
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Yep. It'll work just fine.
Why, though? It's not going to shift noticeably better. I've got everything from 4600 to Dura Ace cassettes, and I don't notice any shifting difference between them.
Weight? Get a 105 cassette and scarf up an excess alloy Ultegra lockring to make up the 1.5g of weight difference between a 105 and and Ultegra cassette.
Do you really need the 11 instead of a 12? What cog do you give up? (I'm too lazy to look.)
If you need a replacement, just stick with 4600. I've got several that I use in races - an 11-25 is a great one to have for some races.
If you want to improve your rear shifting, find a Dura Ace 7800 RD cheap somewhere. Works great with 5700 shifters.
Why, though? It's not going to shift noticeably better. I've got everything from 4600 to Dura Ace cassettes, and I don't notice any shifting difference between them.
Weight? Get a 105 cassette and scarf up an excess alloy Ultegra lockring to make up the 1.5g of weight difference between a 105 and and Ultegra cassette.
Do you really need the 11 instead of a 12? What cog do you give up? (I'm too lazy to look.)
If you need a replacement, just stick with 4600. I've got several that I use in races - an 11-25 is a great one to have for some races.
If you want to improve your rear shifting, find a Dura Ace 7800 RD cheap somewhere. Works great with 5700 shifters.
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I'm currently running a 6700 cassette with a 5700 derailleur, no problems.
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Thanks for the replies, all!
Well, I figured since I upgraded the stock wheelset to Reynolds Solitude, I might as well replace the cassette for something lighter.
Claimed weights:
4600-- 293g (12/28T)
5700-- 250g (12/25T)
6700-- 208g (11/23T)
I guess when spec-ing the gearing more similarly, we get that 1.5g difference instead of the big spread published above?
Claimed weights:
4600-- 293g (12/28T)
5700-- 250g (12/25T)
6700-- 208g (11/23T)
I guess when spec-ing the gearing more similarly, we get that 1.5g difference instead of the big spread published above?
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Yes, those weights are misleading because of the size differences. Stick with the Tiagra cassette and put your $ in nicer tires.
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I have a 5700 RD and ran a 6700 11-28 all last season...zero issues. I picked up 12-30 on the cheap this winter and it even works fine.
On a side note...if you drop $80 on a 6700 cassette at this point, you're getting taken for a ride. Look around, with the 6800 in full steam those are on clearance all over the place.
$53 (11-28 or 12-30):
Shimano Ultegra 6700 10 Speed Road Cassette | Chain Reaction Cycles
May I suggest you look at the 12-30? I know I use 36-30 full granny for climbing more than I use 52-11 for full on balls to the wall speed runs (and I'm too mortal to run flat with 52-11)...
Just food for thought...
On a side note...if you drop $80 on a 6700 cassette at this point, you're getting taken for a ride. Look around, with the 6800 in full steam those are on clearance all over the place.
$53 (11-28 or 12-30):
Shimano Ultegra 6700 10 Speed Road Cassette | Chain Reaction Cycles
May I suggest you look at the 12-30? I know I use 36-30 full granny for climbing more than I use 52-11 for full on balls to the wall speed runs (and I'm too mortal to run flat with 52-11)...
Just food for thought...
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Thanks for the replies, all!
Well, I figured since I upgraded the stock wheelset to Reynolds Solitude, I might as well replace the cassette for something lighter.
Claimed weights:
4600-- 293g (12/28T)
5700-- 250g (12/25T)
6700-- 208g (11/23T)
I guess when spec-ing the gearing more similarly, we get that 1.5g difference instead of the big spread published above?
Well, I figured since I upgraded the stock wheelset to Reynolds Solitude, I might as well replace the cassette for something lighter.
Claimed weights:
4600-- 293g (12/28T)
5700-- 250g (12/25T)
6700-- 208g (11/23T)
I guess when spec-ing the gearing more similarly, we get that 1.5g difference instead of the big spread published above?
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search out a SRAM PG-1050 on e-bay.. ~$60, take your pick of gearing.
I have a 9-speed version (11-26) and it works nicely with my Shimano 105 (5500 era) stuff. No idea what the weight issues surrounding it all might be, of course, as I don't worry too much about minor weight differences, personally.
I have a 9-speed version (11-26) and it works nicely with my Shimano 105 (5500 era) stuff. No idea what the weight issues surrounding it all might be, of course, as I don't worry too much about minor weight differences, personally.
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I have a 5700 rd and 6700 11/28 cassette and it works perfectly!
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Well, no biggie about price; I have about $88 in Performance points, so it was "free." LOL I got the 6700 (11/28), and it works fine with the 5700 RD .
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