krazyderek

I always thought that a brifter (shifter brake lever, sti) was either double or triple compatible, not both (talking about the left one, front shifter), but this guy that has a set says it'll work with both... which doesn't make sense, i think he's missunderstanding the shimano booklet that came with the shifters, IE, they're AVAILABLE in double and triple, but i don't think he know's exactly which he has

can anyone back me up on this? or is there some switch or gear inside that you just have to pop??

55/Rad

If it clicks twice (3 positions) then it's a double. If it clicks three times (4 positions) then it a triple. This is true for DA and Ultegra and (I assume) 105. Tiagra I don't know.

A triple will work fine on a double if you adjust the tension so that the shifter only indexes twice.

Now Sora only has 2 indexes on it's triple. Cheaper stuff = less versatility.

55/Rad

krazyderek

hmm... odd, cause nowi remember my ultegra shifter have 4 postions, and it's a double, there's a big ring, and a second big ring that's pushed further over to the right if i want to use 13 or 12 cogs on my 12-25 cassett without any noise from the front derailleur. There's also the same thing on the small ring, there's small ring, and small ring with the derailleur slightly over to the right so it can allow the chain to cross a little bit to 16 and 14 on the cassette. And it's 4 different clicks on the shifter, not just smudged between shiftings.. lol damn now i'm more confused..

btw, the brifter's in question the guy is selling are this year's 105's the ST-5510

55/Rad

Many people, including myself, use the 4 position shifter with a double. 105 is set up the same way.

55/Rad

krazyderek

so i should just get them if i need them and not worry about it till i set it up ?

55/Rad

If you like the deal, go for it. They'll work just fine.

55/Rad