| Title: | Bicycling |
| Notice: | Bicycling for Fun |
| Moderator: | JAMIN::WASSER |
| Created: | Mon Apr 14 1986 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 3214 |
| Total number of notes: | 31946 |
I recently took delivery on a Marinoni, and have a question
regarding frame alignment.
Marinoni uses Campy dropouts with the adjustable screws. If I set
up the screws so they are equal on both sides, I find that the
rear wheel is not centered relative to the brake bolt and
chain stays. Both the shop and I checked the rear wheel- its in
perfect alignment and properly dished. The shop said they checked
the frame, and its properly aligned. By changing the wheel position
in the dropouts so the screw lengths are unequal by a small amount,
I can center the wheel. I am new to the world of high performance
bikes- does it sound like all is normal, or do I still have a problem?
BTW- so far I've found the Marinoni an absolute delight. A very
quick, responsive bike, but at the same time so smooth and comfortable.
/Larry
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1135.1 | COUPLE OF HINTS | AKOV11::FULLER | Wed Apr 26 1989 17:36 | 23 | |
I would recheck the dishing before doing anything drastic. Just
a little bit out of dish will show up. Try turning your wheel around,
freewheel on the left side. Does the wheel now pull to the opposite
side from before? If this is the case, you have a out of dish wheel,
if the pull is to the same side, I question the frame alignment.
Your problem in the chainstay may not be related to the brake bridge.
If you readjust your dropout so the wheel is center in the chainstay
what happens at the brake bridge? I will probably be still out
of alignment. If you can center the wheel at the chainstay with
little adjustment of the dropout, it probably means that one chainstay
is longer than the other. Although the frame is not "perfectly
built" is no big deal, your frame can still be perfectly straight.
You may wish to do a string test yourself. Tie a long piece of
string to one dropout, pull it around the headtube, then tie to
the other dropout. Measure the distance from the string to the
seattube on each side. They should be the same. This will tell
you if your rear triangle is pushed to one side or the other.
steve
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| 1135.2 | NO BIGGIE?! | WMOIS::C_GIROUARD | Thu Apr 27 1989 07:59 | 4 | |
I agree with Steve. Don't get too excited. The screws/frame are
not meant to be a highly calibrated measuring tool. They're there
to help with alignment. If everything is fine and the room for
safe/flexible adjustment degrees it's no biggie.
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| 1135.3 | MEMORY::GOODWIN | in a spasm of lucidity... | Thu Apr 27 1989 13:22 | 8 | |
re: .0
My new Gitane frame w/ campy dropouts that was aligned just before
I built it has the same symptom. if you look at the two dropouts
I think the one on the derailer side has a longer slot then the
one on the other. I wouldn't worry about it.
Paul
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