T.R | Title | User | Personal Name | Date | Lines |
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3053.1 | Don't get carrier away. | SEND::MCGOWAN | | Fri Mar 15 1996 15:49 | 33 |
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I presume you have setup the brakes for optimum performance,
(1) Point 1(L) is the point where the straddle cable meets
with the left brake arm. Point 1(R) is the point where
the straddle cable meets with the right brake arm.
Point 2 is the yoke (where the brake cable meets the
straddle cable). Point 3(L) is the point about which
the left brake arm rotates. Point 3(R) is the point
about which the right brake arm rotates.
(2) Line a(L) is the line through point 1(L) and point 2.
Line b(L) is the line through point 3(L) and point 2.
These lines should form an angle as close to 90 degrees
as possible. The same is true of line a(R) and a(L).
This usually leaves point 2 very close to the tyre, its
your call how much room you'll need here for mud clearance.
See the brake blocks note for details of how to set up brake
blocks and the kinds recommended by riders in the conference.
If you still feel your brakes are the weak point, I can
recommend LX and XT since I've used them. Unlike the
deraileurs though, XT has very little advantage over LX.
I've yet to hear of XTR being recommended to anyone without
sponsorship.
Of course if you run GripShift, your choice if levers and
brakes will be completely different. I've never run
GripShift and I don't think I ever will since I regularily
change gears (sometimes front and back) and brake at the
same time, unusual? I think not.
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3053.2 | got Alivios now | PAR3::GLYNN | John | Fri Mar 15 1996 16:23 | 14 |
|
Thanks for the pointers. I'm not totally dissatisfied with
my braking performance currently, but the Alivio brakes
that came with the bike aren't real strong. I need to apply
significantly more force to achieve lock-up than I did with
XT brakes on my old bike. I'm also getting uneven wear out
of my brake pads. I think these are indications that there
is excessive flex in the Alivio arms.
BTY - the straddle cable I have is one of those idiot-proof
set length cables, so I think my current setup is within
reasonable limits.
/John
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3053.3 | Not a silver bullet though. | ENQUE::MCGOWAN | | Fri Mar 15 1996 16:37 | 11 |
|
The idiot proof straddle cable just makes it easier to keep
distance between point 2 and point 1(L) equal to the distance
between and point 2 and point 1(R).
Once this distance it set, the angles will match on both
sides but the actual angle is related to the distance between
point 2 and the tyre. Moving this point towards the tyre
will reduce the angle towards 90 degrees (in most cases).
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3053.4 | V-Brakes | FABSIX::JO_BARTER | | Sun Mar 17 1996 00:18 | 11 |
| John,
The best brakes I've seen ever,as far as just rim crushing power,are the
new Shimano XT/XTR V brakes.You can get these for about $ 50. an end for
the XT's.I don't know if they're just a passing fad.There is no
modualation it's just on or off,but gawd they'll flip you on your face
if you're not carefull.Just a thought.
Later
J.B.
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3053.5 | | WMOIS::GIROUARD_C | | Mon Mar 18 1996 06:05 | 2 |
| just curious, but what does frequently changing gears have to do with
grip shift set-ups?
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3053.6 | ;>) of course | HERON::virenq.vbo.dec.com::HEMMINGS | Lanterne Rouge | Mon Mar 18 1996 08:20 | 10 |
|
> Of course if you run GripShift, your choice if levers and
> brakes will be completely different. I've never run
> GripShift and I don't think I ever will since I regularily
> change gears (sometimes front and back) and brake at the
> same time, unusual? I think not.
This man cannot be an American - I seem to remember something along the lines
of marching and chewing gum at the same time ...
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3053.7 | Let me guess, you got Gripshifts? | ENQUE::MCGOWAN | | Mon Mar 18 1996 09:01 | 5 |
|
To change gears using GripShift you gotta twist, wrist goes up
or wrist goes down. This makes changing gears while braking
rather difficult, don't you think?
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3053.8 | no sense changing driveline over brakes | EDSCLU::NICHOLS | | Mon Mar 18 1996 09:19 | 12 |
| > -< Let me guess, you got Gripshifts? >-
> To change gears using GripShift you gotta twist, wrist goes up
> or wrist goes down. This makes changing gears while braking
> rather difficult, don't you think?
Got 'em, like 'em. No major problems with shifting and braking. I do agree
its easier to shift and brake simultaneously with Shimano, but I dont notice
any undo stress with my limitation.
.02
roger
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3053.9 | | WMOIS::GIROUARD_C | | Mon Mar 18 1996 11:25 | 3 |
| agreed... one other point, if you find yourself doing this all the time
you need to re-assess your riding technique because you're probably in
the wrong gear a lot of the time or are not planning ahead enough.
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3053.10 | | BUSY::SLABOUNTY | Don't like my p_n? 1-800-328-7448 | Mon Mar 18 1996 11:56 | 4 |
|
You can shift with your palm, thumb and 1st couple fingers, and
brake with your other 3 fingers, yes?
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3053.11 | "i see" said the blind man | ENQUE::MCGOWAN | | Mon Mar 18 1996 12:25 | 12 |
|
Hmm... And there I was thinking Shimano was onto something.
So people don't actually change gears and brake at the same
time? It sure sounded convincing.
That changes things slightly. Now you've got a whole slew
of brake levers to choose from if you're not happy with
your (now adjusted and ready to lock up immediately) brake
setup, and... I haven't got the slightest clue about any
of them, so its over to you chappies with the GripShifts.
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3053.12 | braking and shifting | FABSIX::S_ARCHAMBEAU | | Mon Mar 18 1996 21:13 | 8 |
| I've never really been in a situation where I'd want to brake and shift at the
same time. I have to agree with Chip, you should probably reassess your riding
style and be prepared for life's little surprises if you find yourself braking
and shifting simultaneously on a frequent basis. Grip Shift is a good shifting
system and for powerful braking try the new Shimano V Brake. For some more
money try Magura Hydraulics, I use these and have no complaints.
- Shawn
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3053.13 | just another quick thought | FABSIX::S_ARCHAMBEAU | | Mon Mar 18 1996 21:28 | 2 |
| If your shifting you must be pedaling. Wouldn't pedaling and braking be a
contradiction?
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3053.14 | | WMOIS::GIROUARD_C | | Tue Mar 19 1996 06:13 | 6 |
| -1 only if you expect it to go into another gear :-).
I was in Goodale's Saturday (snooping with my brother-in-law). The
guy said that the new V brakes are awesome. They do look cool.
Chip
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3053.15 | v brakes | FABSIX::S_ARCHAMBEAU | | Tue Mar 19 1996 07:04 | 4 |
| Shimano had a demo bike at Mt Snow last year set up with the '96 XTR prototypes,
if they stop as good as they look then they'll probably be the best canti's out
there next to hydraulics
-Shawn 8^)
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3053.16 | | STOWOA::SWFULLER | | Tue Mar 19 1996 08:40 | 4 |
| Unfortunately these new V brakes need a lever that can move a lot of
cable. For us tandem people, this eliminates the use of this product.
steve
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3053.17 | | WMOIS::GIROUARD_C | | Tue Mar 19 1996 08:42 | 4 |
| i was playing with some models with these brakes and really didn't
notice a lot of travel required over the regular cantys...
i'll have to pay closer attention the next time i'm in a shop.
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3053.18 | | STOWOA::SWFULLER | | Tue Mar 19 1996 08:44 | 4 |
| I believe the brake lever handles the extra cable travel, so if you
are using after market levers it may feel different
steve
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3053.19 | Try this... | ENQUE::MCGOWAN | | Tue Mar 19 1996 08:56 | 10 |
|
I don't do it every ride, however when I do, it's generally on a
bitchin steep downhill, with a sharp graduation into a severe uphill.
On the way down the hill you feather the back brake, because you're
rolling you can turn the cranks without applying any force on the
rear wheel, and you can now shift the back gear a few clicks, or
even shift the front one if you need to, now you get to the bottom
in gear and are ready to pedal as soon as whatever momentum you have
dissipates.
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3053.20 | I've done that! | PCBUOA::aki1005.ako.dec.com::rehberg | | Tue Mar 19 1996 13:16 | 6 |
| I've done this with my grip shifters. There may be better setup but this
definitely works with grip shifters. I think you have to try it to see if
you will like it.
Rick
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3053.21 | It's just not clicking with me.. ;^) | ENQUE::MCGOWAN | | Tue Mar 19 1996 15:30 | 4 |
|
You did? I honestly still have trouble envisoning it. Maybe you're
right and I should try it out, none of the guys I ride with use 'em
though! Oh well...
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3053.22 | V Brakes offer little clearance | PATE::SOLON | | Tue Mar 19 1996 17:18 | 12 |
| I was in a shop last week where they were building a Merlin with
the Magura hydraulics. I asked why not the v brakes and was told that
the v brakes, because of the enormous leverage, require that they be
held to 1/8" off the rim. This, they found, clogged with mud and grit
to readily. The hydraulics have much more travel.
FWIW, as a rank beginner, I too find myself going down hill with
an immediate climb (usually with water at the bottom!) and downshift
while braking and descending - even if I'm not pedaling. It works for
me... sometimes ;^)
Tom
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3053.23 | I love my Magura's | FABSIX::S_ARCHAMBEAU | | Thu Mar 21 1996 07:13 | 1 |
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3053.24 | V breaks are real nice | LJSRV1::HAYDEN | | Tue Mar 26 1996 21:59 | 3 |
| I just got a bike with V brakes (XT). They're great. Really like
them. Dangerous to begin with - almost left the bike behind the first
time I put them on going down my driveway.
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3053.25 | What about easy of adjustment? | MKOTS3::tcc050.mko.dec.com::larson | | Tue Apr 16 1996 10:58 | 13 |
| What about ease of set up? I have XT's, vintage '95. I can set them up
perfectly, but every time I change my brake pads it takes me an hour to get
it right. There has to be a better way to adjust the pads than that
conical washer set up. Every time you do one adjustment, another one gets
messed up.
Anyone with experience with Onza, Avid, Machine Tech, Critical Racing, etc?
I would spend $100 for the most easy to set up brakes, I just want to make
sure it's "better", and not just "different".
thanx,
Mike
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3053.26 | | EDSCLU::NICHOLS | | Wed Apr 17 1996 14:38 | 8 |
|
Well, I can say that Dia Compe 987 are a PITA to set up, but work fine. If
cost is a factor, these are way up the list. Ease of setup knocks them quite
hard, however.
.02
--Roger
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3053.27 | | CONSLT::MCBRIDE | Idleness, the holiday of fools | Mon Sep 09 1996 16:19 | 7 |
| I just bought a bike with Avid SD 2.0 levers. Problem is that there is
no real information on how they work i.e. what the adjusters do.
Can anyone in here shed a little light on what the adjusting screws do?
Thanks,
Brian
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