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-   -   Buell question?? (http://www.twowheelfix.com/showthread.php?t=2960)

marko138 10-23-2008 09:03 AM

Quote:

Originally Posted by TIGGER (Post 82547)
Ha,you're right but that wasn't a production bike was it? Anyway,I was referring to the current style Harley/Buell bikes in production I must admit tho' you got me!!!

I know what you meant. I'm just giving you a hard time.

FT BSTRD 10-25-2008 01:50 AM

Quote:

Originally Posted by OneSickPsycho (Post 82354)
I had the standing up issue running Diablo's and Pilot Road 2's... :idk:

I've never had mine to stand up. I've run 6 different kinds of tires.

I think the problem is worse with smaller riders.

(Not that you are a widdle guy.)

OneSickPsycho 10-25-2008 08:53 AM

Quote:

Originally Posted by FT BSTRD (Post 83273)
I've never had mine to stand up. I've run 6 different kinds of tires.

I think the problem is worse with smaller riders.

(Not that you are a widdle guy.)

5'11" 250lbs... Fuck me... it must be TERRIBLE with riders in the 150lb range... You know, could also have to do with the longer travel suspension on the Uly.

OreoGaborio 10-25-2008 11:43 AM

A bike standing up under braking isn't so much of a tire issue as it is a geometry issue. Changing tires can change the geometry in a way that it exadurates or eliminates the problem, but ultimately up to you to find a tire you like & adjust the geometry (if possible) accordingly.

Braking should actually make it EASIER to get the bike turned in as it compresses the front end making the bike more flickable.

Amber Lamps 10-25-2008 12:47 PM

Yea the XB and the Uly are of course totally different bikes. Besides don't you have the "long" version of the Uly FB? I have a stupid question tho',wasn't the perimeter brake system supposed to stop that very problem?

FT BSTRD 10-25-2008 01:51 PM

One of the things to also keep in mind is that there are specific tires designed for Buells. These OEM tires were designed lighter in order to reduce the unsprung weight and decrease the tendency to stand up under braking (per Erik Buell). The Diablo T was supposed to be lighter than the standard Diablo, etc. That was the lesson from the D208 which was, if I remember correctly, an off the rack tire. Other tires placed on the bike are not designed with unsprung weight in mind. I had the misfortune of strapping on a set of Tomahawks. The tires wrecked the handling. I felt the same about the Pirelli Stradas.

The D616 was specifically designed for Buell with both lightness and off road tread pattern in mind. It sucked, but that was the design spec'd specifically for Buell.

The Uly is on the same platform as the XT, SS, and STT with the longer swing arm and higher capacity frame/tank. It is less likely to stand up under trailbraking.

I'm not at all saying it doesn't happen, but I don't see it as the "holy crap this thing is a death trap" problem many make it out to be.

It's hard for a bike to stand up under braking with you have a 240lb + Gear gorilla hanging off to the inside of the turn. The longer suspension of the Uly actually makes trail braking trickier simply because of the amount of travel in the front forks. It's much more sensitive to front braking inputs. I tend to trail brake with the rear if needed.

The S, SS, and R models tend not to have the same dive and front fork issues under braking due to the shorter suspenders. I rode an 9R for about 150 miles while down in Suches. I didn't experience ANY of the standing up in turns under trail braking.

Again, I doubt that the little R could even THINK about standing up with a gorilla hanging off of it.

Cutty72 10-26-2008 08:19 PM

Quote:

Originally Posted by TIGGER (Post 83323)
Yea the XB and the Uly are of course totally different bikes. Besides don't you have the "long" version of the Uly FB? I have a stupid question tho',wasn't the perimeter brake system supposed to stop that very problem?

The ZTL brake is designed to reduce rotating mass and torsional load while keeping front brake feel and power.

Mr Lefty 10-26-2008 08:22 PM

Quote:

Originally Posted by Cutty72 (Post 83555)
The ZTL brake is designed to reduce rotating mass and torsional load while keeping front brake feel and power.

and apparently stand you up in corners :lol:

Cutty72 10-26-2008 08:27 PM

Quote:

Originally Posted by Ebbs15 (Post 83556)
and apparently stand you up in corners :lol:

:idk: don't notice it on the 1125R. Though the testers in SR said it was still there a bit.
But again... even the 1125R wasn't designed as a race bike for the street, it was designed as a street bike that can give 'em a run on the track.

Porkchop 10-26-2008 08:56 PM

Quote:

Originally Posted by FT BSTRD (Post 83335)
Again, I doubt that the little R could even THINK about standing up with a gorilla hanging off of it.

So, if say that gorilla was 6' 1''... oh say 315 lbs.... You think that little R would have any problems with standing up???? HAHA


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