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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through June 15, 2007 » 200 rear tire XB12 « Previous Next »

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Rieguy187
Posted on Thursday, June 14, 2007 - 08:42 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

anyone runnig a 200 rear tire with or with out any mods to the drive line? on a XB12?
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Firebolteric_ma
Posted on Thursday, June 14, 2007 - 08:56 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I got a 190 and it is max'd on that rim.

I would stay w/ the 180....

Others like the 190....

It is all preference I guess
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Buellinachinashop
Posted on Thursday, June 14, 2007 - 08:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I thought about putting a 190 on mine, I was abruptly told that this was a dumb idea.

"they put a 180 on there for a reason , Buell isn't American Chopper."
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Firebolteric_ma
Posted on Thursday, June 14, 2007 - 09:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

..Yea I was told that too....Made me order it right then and there.

It is all about what YOU LIKE! Who really cares what everyone else "Thinks"
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Trojan
Posted on Thursday, June 14, 2007 - 09:14 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It is possible to run a 200 rear tyre, and we can supply an offset front pulley that will enable you to do this easily.

The question of course remains, why would you want to do it?
Handling will suffer and as the above post says, they put a 180 there for a reason ;)
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Ridrx
Posted on Thursday, June 14, 2007 - 09:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

What is everyone's affinity for big tires? The XB handles very well with the 180 rear. There is nothing to gain but unsprung weight.

If you desire to put a 200 on it and can SAFELY mount it on the wheel, do it. Don't let someone else influence what you do to your bike...that said, don't be surprised if the character of the bike changes slightly. The O.D. of a rear tire plays a minute roll in many things...gearing, cornering, braking to name a few. Changing one of these parameters alone would net only a small difference, however changing many at once can have a surprisingly large effect, as well as the obvious loss of agility due to the increased cross section.

Whatever you do...RIDE!;)

Do what you want with your bike/money, just take it easy for a while to learn the new attitude of the setup. BTW, if you ride the twisties, my money says you'll be back on a 180 soon.
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Buelltroll
Posted on Thursday, June 14, 2007 - 09:26 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Matt any word on the windshield?
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Trojan
Posted on Thursday, June 14, 2007 - 10:23 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Matt any word on the windshield?

Nope, still waiting I'm afraid : ( I'll chase them again today.
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Jaimec
Posted on Thursday, June 14, 2007 - 11:26 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

A wider tire will not increase the size of the contact patch... what it WILL do is cause the location of the contact patch to range farther away from the center of balance in extreme cornering. The bike will then either want to stand up, or fall into the turn; whatever happens it WON'T have the neutral handling it has now.

It'll also add unsprung weight which is something Erik went through great pains to eliminate. Wider tires help dissipate heat better which is why you see wider tires on GP bikes... but our Buells don't put out anywhere NEAR those levels of horsepower.

Wide tires on choppers are merely a styling element and have nothing to do with anything beyond the "look." I rode a Victory Vegas Jackpot with a fat tire and it was one of the worst handling motorcycles I've EVER ridden. Did a straight line REAL well, though!
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Bads1
Posted on Thursday, June 14, 2007 - 01:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Ya don't need a off-set front pulley. You need to have your wheel widened to 6 inches minimal.. 6.5 inch would be better but 6 will work. Jumping to 190 from a 180 hasn't given me any ill effects but it does pinch the wheel just slightly. A 190 call's for 6 inch wheel. A 200 a 6.5 inch wheel. Your stock wheel is 5.5 inch... designed for a 180. If you choose a 190 to run on a stock wheel. You'll need to run a 190/50. A 190/55 will not work.
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Bads1
Posted on Thursday, June 14, 2007 - 01:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Jaimec,

The width of the tire from a 170-180 will not have any ill effects on the bike at all. What needs to happen is use the right size wheel for the application. If the XB came with a wider wheel the tire size can be increased. That way its correct.
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Jaimec
Posted on Thursday, June 14, 2007 - 04:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Isn't a 180 the stock width already? That's what the bike was designed around. The poster was asking about a 200...
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Rieguy187
Posted on Thursday, June 14, 2007 - 07:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

ThanX everyone for your opinions, I just wanted to know if its was possible. It looked pretty tight in there, It's for the looks not for the handling. I have a supermoto bike for that. ThanX again.
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Bads1
Posted on Thursday, June 14, 2007 - 10:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Jaimec,

Yes the bike was designed with a 180. Its all the bike needs to do the job. The tubers were designed with a 170. The Tubers that have the cast wheels are 5 inch wheels... bigger started to pinch. The XB's are 5.5 inch wheels that is for a 180 to be correct fit..... bigger begins to pinch. Now if lets say the XB came with a 6 inch wheel then the XB would be fitted with a 190 and at the same time because of the right size wheel and tire it would not have any ill effects to what you are referring to.
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Lovematt
Posted on Thursday, June 14, 2007 - 10:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I have been running a 170 for the last 32,000 miles and love it. I really prefer a more round tire given a really neutral feel when going straight and in the twisties...
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Jaimec
Posted on Thursday, June 14, 2007 - 11:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

My point was that putting a fatter tire on the bike than it was originally designed for would adversely affect the handling. If the bike were designed for a 180 tire, fine... putting a fatter tire on it would accomplish nothing good. That's all.

My old R100RT did okay with the two pretty skinny wheels/tires it came with. :-) But when you only put about 50hp to the rear wheel, you don't NEED a big fat tire and it would only hurt things because it would probably never get up to proper operating temperature.
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Bads1
Posted on Thursday, June 14, 2007 - 11:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Ok put it this way. The bike was designed with a 5.5 wheel. The right tire for that size is 180. If ya put a 6 inch wheel on it then the 190 is what the bike would come with. It would do nothing to the handling then. I guess your not understanding why a 190 would cause ill effects on the XB. Its not that the bike was designed for a 180 the wheel is. Putting the wrong size tire on wheel is what causes ill handing effects not tire width. And we ain't talk'n cruiser fat tire Victory Vegas or choppers with 240's.
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