105 triple question

DMK said:

I have a question about my recently purchased trek 1500 with 105 brifters,
105 triple front and ultegra rear. When I am in the big ring in the front I
can only use about 6 of the 9 rear cogs befroe I get chain rub. Is this
normal for this set up or is it out of adjustment?

Yes . . . to a degree. I probably would be hoping to get /7/ out of
nine, but . . .

You'll find that--with your middle ring--you more than likely get
equivalent gears without going "cross-chain." Cross chain (also
induced with your little chainring and your little gears (in the back)
puts excessive load (and wear) on the drivetrain and should be
avoided.

Quoted message said:

I have figured out the trimming of the front but that only seems to work on
the middle and small front rings and not the big ring. Is this typcial for
a triple set up?

Yes. Adjustments to the big ring (and, typically, the little ring)
are achieved by proper setting of such things as limit screws and
cable tension. More here:

http://www.parktool.com/repair_help/FAQindex.shtml#drivetrain

http://sheldonbrown.com/derailer-adjustment.html

DMK said:

I have a question about my recently purchased trek 1500 with 105
brifters, 105 triple front and ultegra rear. When I am in the big
ring in the front I can only use about 6 of the 9 rear cogs befroe I
get chain rub. Is this normal for this set up or is it out of
adjustment?

As long as they're the /right/ 6 rear cogs (the smaller ones), then it's
normal. (Like Neil said, 7 is a bit better, but then you're definitely
approaching cross-chaining.) Think of it as God's (er, SHIMANO'S) warning
buzzer.

Quoted message said:

I have figured out the trimming of the front but that only seems to
work on the middle and small front rings and not the big ring. Is
this typcial for a triple set up?

Yes, the big ring has no trim adjustment -- and I'd venture to say that
/most/ people never use the SMALL ring trim, as that too means it's close to
cross-chain time. (Although I want to start making a point to use my small
ring a little more, as my tendency has been to ONLY use it for total granny
gearing w/top 2-3 cogs, and that might mean wearing out my middle ring a
little sooner?)

Bill "gimme gears" S.

DMK said:

I have a question about my recently purchased trek 1500 with 105 brifters,
105 triple front and ultegra rear. When I am in the big ring in the front I
can only use about 6 of the 9 rear cogs befroe I get chain rub. Is this
normal for this set up or is it out of adjustment?

I have figured out the trimming of the front but that only seems to work on
the middle and small front rings and not the big ring. Is this typcial for
a triple set up?

Sounds OK to me. I use a 105 triple on 8-speed and I never use anything
larger than the 6th smallest sprocket when in the big ring. The other
gears are probably dupes anyway.

DMK said:

I have a question about my recently purchased trek 1500 with 105 brifters,
105 triple front and ultegra rear. When I am in the big ring in the front I
can only use about 6 of the 9 rear cogs befroe I get chain rub. Is this
normal for this set up or is it out of adjustment?

I have figured out the trimming of the front but that only seems to work on
the middle and small front rings and not the big ring. Is this typcial for
a triple set up?

DMK

Trim only in the middle ring for ultegra and 105 left shifter. DA has
big ring trim in the triple but not those below it.

In article <[email hidden]>,

Qui si parla Campagnolo said:

DMK said:

I have a question about my recently purchased trek 1500 with 105 brifters,
105 triple front and ultegra rear. When I am in the big ring in the front I
can only use about 6 of the 9 rear cogs befroe I get chain rub. Is this
normal for this set up or is it out of adjustment?

I have figured out the trimming of the front but that only seems to work on
the middle and small front rings and not the big ring. Is this typcial for
a triple set up?

DMK

Trim only in the middle ring for ultegra and 105 left shifter. DA has
big ring trim in the triple but not those below it.

Ultegra 10s triple has a trim setting on the big ring as well.

--
Mike DeMicco <[email hidden]>

Qui si parla Campagnolo said:

DMK said:

I have a question about my recently purchased trek 1500 with 105
brifters, 105 triple front and ultegra rear. When I am in the big
ring in the front I can only use about 6 of the 9 rear cogs befroe I
get chain rub. Is this normal for this set up or is it out of
adjustment?

I have figured out the trimming of the front but that only seems to
work on the middle and small front rings and not the big ring. Is
this typcial for a triple set up?

DMK

Trim only in the middle ring for ultegra and 105 left shifter. DA has
big ring trim in the triple but not those below it.

My Ultegra has trim in little and middle. (Are they the same trim?)

Not Always Silent Bill (just ask Neil)