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Reducati
Posted on Tuesday, October 18, 2005 - 03:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

look familiar?
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Dago
Posted on Tuesday, October 18, 2005 - 05:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

is that a guzzi?
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Tq_freak
Posted on Tuesday, October 18, 2005 - 05:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

silly Europeans, they put the motor in wrong
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Olinxb12r
Posted on Tuesday, October 18, 2005 - 05:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Dual ZTL brakes? Holy crap! I bet that thing would throw you over the front in a heartbeat!
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Buellerx
Posted on Tuesday, October 18, 2005 - 06:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Interesting! Where did you get that pic? Is there any more info on it?
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Tramp
Posted on Tuesday, October 18, 2005 - 07:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

looks like a magni to me
(i'm not living in a vacuum, but i did
stay at a Holiday inn express last night...)
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Eeeeek
Posted on Tuesday, October 18, 2005 - 08:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

2001 Ghezzi-Brian SuperTwin. Now that you mention it, it does seem that the XB borrowed some styling cues from that bike.

Vik

(Message edited by eeeeek on October 18, 2005)
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Reducati
Posted on Tuesday, October 18, 2005 - 08:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

you are correct sir!
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Buell_892
Posted on Tuesday, October 18, 2005 - 09:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thats one BADDDD bike!
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Thepup
Posted on Tuesday, October 18, 2005 - 09:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Eeeeek,thats Blasphemy.This should get fun.
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Unibear12r
Posted on Tuesday, October 18, 2005 - 09:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Not a ZTL at all. Those disks are mounted to the edge of the rim and if you tweek the rim riding there's going to be parts of you & bike all over the road. Not a good street design at all.
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Wyckedflesh
Posted on Tuesday, October 18, 2005 - 09:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Those are NOT ZTL brakes. They ARE perimeter brakes. Just a point of difference, ZTL's are FREEFLOATING rotors. Those are not free floating.
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Unibear12r
Posted on Tuesday, October 18, 2005 - 09:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Blasphemy? Why? Everybody gets styling cues from somewhere else.
I seem to remember reading that the XBR's styling was partialy farmed out to somebody known for styling euro bikes.
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Choptop
Posted on Tuesday, October 18, 2005 - 10:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Uni...

doesnt ZTL mean that the braking torque is not transmitted through the spokes of the wheel?

doesnt mounting the brake disc to the outside of the wheel do the same thing?

Zero Torque Load = ZTL

doesnt matter that the disc is mounted the edge of the rim. The same thing is accomplished.

its not an issue of free floating, or rim mounting, or Buell uses this type of brake pad, or Buells calipers are Blue and those are silver....

the torque load, or lack thereof in this case, is the point.
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Lpowel02
Posted on Tuesday, October 18, 2005 - 10:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

what the...

my calipers aren't blue...wtf!

; )
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Choptop
Posted on Tuesday, October 18, 2005 - 11:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

you got ripped off : D...
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Unibear12r
Posted on Wednesday, October 19, 2005 - 12:01 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Chop you are quite correct about the loading aspect as far as I know.
A rim mount is not the way to (safely) make a ztl brake tho. Put enough of them out on the street and someone will shut you down with lawsuits I would think.
I'm not sure but the label Zero Torque Load and capitalized ZTL are used (and copyrighted?) by Buell for their design. I tend to think of only Buell's design when I see ZTL.
But I see your point, such as, all adjustible slip pliers are commonly called "Channellocks" or "waterpump pliers" right?
Just my opinion but I don't consider the ZTL an actual "perimeter" brake as the disk is not mounted to the rim itself therefore not at the perimeter!
Yes I know this post is mostly hair splitting!
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Timbo
Posted on Wednesday, October 19, 2005 - 12:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

ZTL = Zero Torsional Load


sheesh


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Eeeeek
Posted on Wednesday, October 19, 2005 - 12:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Well if you want to get technical, it looks like the Ghezzi-Brian borrows its looks from the Britten.

Vik
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Unibear12r
Posted on Wednesday, October 19, 2005 - 12:57 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Oops!
My bad!
Got me there Timbo!
Hope to ride with you again before too long.
I had a blast last time.

(Message edited by unibear12r on October 19, 2005)
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Thepup
Posted on Wednesday, October 19, 2005 - 02:25 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

unibear,I was just making a point that some on this board believe everyone else copies off Buell.
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Phillyblast
Posted on Wednesday, October 19, 2005 - 07:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Vik,
Good call - at first glance I thought it was a Britten. The I noticed the motor was facing the wrong way : ) Didn't Motorcycle Online do a piece on the bike a while ago and call it the "Italian Buell"?
: D
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Choptop
Posted on Wednesday, October 19, 2005 - 09:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

the Guzzi and the Buell power deliver is pretty similar.
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Reepicheep
Posted on Wednesday, October 19, 2005 - 09:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The point is that if you take a plain old front wheel, then slap a perimiter rotor on it, you gain no advantages in reducing unsprung and rotational mass. You might gain some advantages on rotor swept surface area, but you pick up other problems with it as well. The only real gain is probably bling.

If you start with a perimiter rotor, then properly re-engineer the front wheel to be far lighter due to the new problem it is solving (not transferring braking forces through the spokes), *then* you get a whole host of other advantages. You also then properly engineer the wheel around the rotor to protect the caliper and rotor while still keeping the perimiter mount.
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Choptop
Posted on Wednesday, October 19, 2005 - 11:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

look at the front wheel... does it look like a forged unit? does it look like it has a much smaller hub than a normal wheel? do you see any huge webbing or mounting bosses for disc mounting?


thats the point.

like I said, the ZTL system is fine... BUT you can get the exact same thing by...

light wheel
lighter spokes
perimiter brake


and you have all the advantages of the ZTL...

execpt one.. the disc being set back into wheel away from the rim.

its been pointed out the if you dim the rim on this set up yer screwed... true. Pretty much though, if you ding the rim on any rim, yer screwed.
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Unibear12r
Posted on Wednesday, October 19, 2005 - 08:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

That setup doesn't LOOK as light as the ZTL to me, but there is no question that it could be if they wanted it to be.
You are VERY wrong about being screwed by any tweeked rim though. VERY! I've rode with guys who've hit things and tweeked their rim and made it home. You won't with that thing.
With that much swept area it prolly does have tremendious gross stopping power but I'd bet much of it is unuseable.

(Message edited by unibear12r on October 19, 2005)
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Buellin_ri
Posted on Wednesday, October 19, 2005 - 08:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Think the "boys" wouldn't like riding on that thing for to long. Look at the seat.
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Unibear12r
Posted on Wednesday, October 19, 2005 - 08:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Which makes me wonder, why the extra disk weight of two disks if it's power is mostly unuseable?
Just for looks.
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Kootenay
Posted on Wednesday, October 19, 2005 - 08:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I have a page on my hard drive that's relevant to this thread----it's the Ghezzi-Brian ProThunder racebike--I've cut it up so I can upload the pieces at a decent size:

Prothunder

Prothunder 2

Rear end

Triple

Text
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Choptop
Posted on Wednesday, October 19, 2005 - 09:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

well... two discs period is not just for looks.

its for the stopping power.

one ZTL disc and set up is not enough for track applications. Fine for the street, but when you get going at full tilt boogie on the track, it dont cut it.

please dont start another flame war about this.

thats why all of the racers use dual front discs...

and if you think that the ZTL street system is all the braking you'd ever need, please take a look at MotoGP, dual carbon on carbon discs and pads, and yet they manage not to launch themselves over the bars.

its all about how/when/why/where/how quick you can use your brakes, and the single ZTL system isnt up to the task at track pace.

again, its great for the street.

so, no the dual discs on this bike are not overkill.
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