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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through November 11, 2010 » Can I get a little 750 vs 1125 help here! » Archive through October 27, 2010 « Previous Next »

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Guard_rail
Posted on Tuesday, October 26, 2010 - 11:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Me-1125R stock
Him-750gsxr stock

Me-125mph a little nervous
Him-170mph and still pulling

Me-230 pounds
Him-130 pounds

We weren't racing just having some fun on an open highway. Let me tell you, when he passed me I felt like I was standing still. My jaw hit the ground. I don't mind getting passed but that wasn't zzzzzzzoooooooommmmmm. It was zoom.............................................. !?!?! What the Łu<k was that?
Now my cousin (also rides a gsxr) says that it's because...

A. My bike is more of a sport-touring bike or at least has sport-touring geometry, because of how up right the seating position is and it's got to be really hard to get under the wind screen. 

B. Gxsr 750's and 1000's have the same engine just tuned/built differently. 

Now I'm ok with his B. statement but A. Made me wanna say "Go Łu<k yourself"
 
So are there geometry numbers or articles I can reference to prove this is indeed the super sport bike it is???

(Message edited by Guard_rail on October 26, 2010)
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Avalaugh
Posted on Tuesday, October 26, 2010 - 12:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Would say have a play with the suspension, then suck in your gut and get tucked behind the screen, my mate has the exact same gsxr and ours definatly gets up to those speeds quicker if you get on the gas soon enough, the gsxr 1000 does pull away but not massively more than the 1125. Comes down to how big your balls are and how much you need the drivers licence, that's if your playing on the roads.....
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Poppinsexz
Posted on Tuesday, October 26, 2010 - 12:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Buell 1125R 146 HP
GSXR 750 140 HP Both are crank HP numbers

Buell power 4500-10500
GSXR power 7500-14000

Both run about the same 1/4 mile.

My riding buddy runs a GSXR against my 1125R and we both seem to be about equal with everything power wise.

100 lbs of added weight is a big difference it's like 15% more overall mass, this will make a big difference in performance.

Swap bikes with him and see what happens to his GSXR.
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Tattoodnscrewd
Posted on Tuesday, October 26, 2010 - 12:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You've got 100 pounds on him, that makes a HUGE difference to begin with ...

As far as it being a sport tourer... I dunno - Danny Eslick won the sportbike championships on it last year ... Seems like a sportbike to me ...

Everyone knows that the Buell's lose out a little on the top speed but to only get to 125 mph ... Sorry for saying so but it sounds like you need to twist the throttle a bit more, these bikes definitely do better than that.

(Message edited by tattoodnscrewd on October 26, 2010)
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Dreso1021
Posted on Tuesday, October 26, 2010 - 12:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

+1 to what has already ben said about ur extra weight and specs between the 2 bikes.

GSXR & an 1125 having the same motor just tuned differently ? Tell him to take the plastics off and have a look - nowhere near the same motor - GSXR = Inline 4, 1125 = V-Twin

i think guard rail meant between the gsxr 750 and gsxr1000 engines
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Bueller4ever
Posted on Tuesday, October 26, 2010 - 12:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

He was saying the gsxr750 and gsxr1000 have the same engine.
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Gunut75
Posted on Tuesday, October 26, 2010 - 12:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Gxsr 750's and 1000's have the same engine just tuned/built differently.

To the tune of approximately 250cc? They're not even close. The only similarity between these 2 gixxers is the RPM range the power band is in, and the body work.
Something is wrong somewhere, or he has mods done.
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Poppinsexz
Posted on Tuesday, October 26, 2010 - 12:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Also I know for a fact that an 1125r will get to 140 right now fast!! and still have plenty to go.

If all yours will do is 125 your throttle might be stuck/misadjusted or you may have some other problem. The 1125Rs should do close to 170.
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Duphuckincati
Posted on Tuesday, October 26, 2010 - 01:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

As far as statement "a" goes, the rake and wheelbase on the Buell is more sporty-radical than the GSXR. However, in my mind, the Buell is a very sporty real-world street bike where the GSXR is a streetable race bike. For whatever that's worth. Suggest a race where you both have to stay under 8500 rpm and see what happens. Or strap a couple of big bags of dog food on the GSXR for weight evenness!
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Jules
Posted on Tuesday, October 26, 2010 - 01:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Me-125mph a little nervous
Him-170mph and still pulling


Please don't be offended by this but I suspect that statement is a big part of the equation.

The performance is very similar between the two bikes, I can play with my mates on theirs all day long and none of us has enough of a power advantage to walk away from the other...

I've seen 170+ on my 1125R regularly enough to know it's achievable

Can I ask why you're nervous (other than the obvious desire to keep your licence)?
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Tattoodnscrewd
Posted on Tuesday, October 26, 2010 - 01:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I missed that he was comparing the GSXR motors ... Sorry about that Guard_rail, I corrected my post...

But yea, 140mph will happen in the blink of an eye

I still think the 100 pound difference between you two has a bit to do with it though.

Like Poppinsexz said .. swap bikes and see who pulls away from who.

What RPM and what gear were you in when you guys decided to play ? If you were a gear or two up in a lower RPM and then cracked the throttle, acceleration would be a little slower allowing him to pull away - shouldn't happen like you described if you were in the right gear and RPM regardless of the weight difference.
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Drawkward
Posted on Tuesday, October 26, 2010 - 01:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I made a thread with some video of me and Lovedabueller at TWS. I weigh probably 70 pounds more than him and he was walking it on me...both on '08 1125R's. I had the race ECM with no inner airbox and he had the stock ECM with the airbox on. Now, the airbox limited me A LOT, but my weight was a bigger factor. I need to lose 50 pounds to be competitive (and healthy).

Also, if you're nervous at 125 then don't push it...it's not worth making a mistake because you're apprehensive and end up killing yourself. But the bike with a 250 pound male will go at least 157mph...I know that for a fact.
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Xl1200r
Posted on Tuesday, October 26, 2010 - 01:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My bike is more of a sport-touring bike or at least has sport-touring geometry, because of how up right the seating position is and it's got to be really hard to get under the wind screen.

BS. The 1125 has rather aggressive geometry, and the screen is likely the easiest to get under of any sportbike I can think of.


Gxsr 750's and 1000's have the same engine just tuned/built differently.

Uhhh... also BS. They didn't pull those numbers out of their ass, they mean something.

For the record, I have no windscreen (on my CR) and have no problems getting to 150 assuming enough straight.

And that GSXR at 170 (if that's what he was actually doing and not what his speedo said, they're notoriously over-stated) is damn-near topped out. Your 1125 will do the same.

You either need bigger balls or suspension work.

And stop doing this crap on the highway - take it to a racetrack.
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Dreso1021
Posted on Tuesday, October 26, 2010 - 01:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

in addition i know when i get up to 150+ i start to get the speed wobble. play with the suspension a little bit and that can be worked out. plus i only weigh 145 on a good day so i dont have alot of pressure on the front wheel lol

+1 o not pushing past ur comfort level

(Message edited by dreso1021 on October 26, 2010)
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Gsxrguy
Posted on Tuesday, October 26, 2010 - 01:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have a 04 750 with some mods and an 1125R and my 1125 was a HUGE dog until I got the race ECM and slip-on now it feels like it supposed to.
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Hootowl
Posted on Tuesday, October 26, 2010 - 01:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The weight difference will affect acceleration, but not top speed. Not to any great degree anyway.
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Mikellyjo
Posted on Tuesday, October 26, 2010 - 01:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Better yet, take him off the line and just before he catches up shut her down. When he asks what happened tell him you got bored being in the lead and didn't feel like punishing him anymore. Then slowly drive away as he ponders that thought.

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Fresnobuell
Posted on Tuesday, October 26, 2010 - 01:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've seen 170+ on my 1125R regularly enough to know it's achievable

MPH not KPH
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Jules
Posted on Tuesday, October 26, 2010 - 01:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I know....

By "regularly" I don't mean every day but certainly I have seen it on more than one occassion..

160 (MPH) is pretty easy but the next 10MPH does require quite a bit of comitment (and a long road)
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Guard_rail
Posted on Tuesday, October 26, 2010 - 02:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mikellyjo-that's the funniest thing I heard on here since I wrote that line about our international sisterhood of re-furbugered stators.

Dreso-yeah it was a comfort level thing. It was dark and late. I've done 150 under better conditions

XI1200-bigger balls wouldn't hurt and I agree with aggressive geometry, and the screen is likely the easiest to get under of any sportbike I can think of.

Jules-need a new front tire. ie low on tread. It's been a little unpredictable lately.

To everyone else-OK! I'm Fat! I get it!
Lol. Naw I'm 6'5" so I'm at about the right weight.
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Pyrogen
Posted on Tuesday, October 26, 2010 - 03:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

engine design makes these two bikes worlds apart though their performance is about the same. You should challenge your buddy to a drag race during excellent conditions, I think you won't be as surprised as he will be when you stay with him to 140 or 150.
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Dreso1021
Posted on Tuesday, October 26, 2010 - 03:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

ya i hear u on being nervous at night. u wont catch me doing those speeds at night. Deer are unforgiving to a car. Id hate to see what one would do to me on my bike. No thanks lol
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Ratsmc
Posted on Tuesday, October 26, 2010 - 03:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The GSXR750 and 1000 do have the same motor just different cranks and a larger bore.
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Pmjolly
Posted on Tuesday, October 26, 2010 - 03:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It has a lot to do with the weight and the rider confidence. For years growing up, I rode with a friend of mine who was rather thin. I was always rather heavy. It did not matter what I did. If we were on similar bikes, he could beat me, then swap bikes and beat me again. Recently, I was out horsing around with a neighbor on a new Suzuki BK1300. It's like a naked Hyabusa. He tried to leave me from a stop sign. We were the only people on a long stretch of wide open country 4 lane state highway. I hung right next to him in the other lane all the way to 152 indicated. That is when my front end felt just a little light, and I decided I did not need to go that fast. He was fighting to keep the front wheel on the ground the whole time. I was just moving along. I am positive a better rider would have smoked me on his bike. It all boiled down to experience.
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Juniorkirk
Posted on Tuesday, October 26, 2010 - 03:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

same boat here Guard_rail, 6'5" 210lbs. even with me sitting up (almost upright being so long armed) it pulls like freight train in hell. Love the bike, cant wait to get back to her and ride the living shit out of her. Fastest i've been so far on my is 145 indicated and that was at 10pm at night on I-15 on the express lane and i was only in 5th gear at about 8.5k, cant wait until i get her in 6th and hitting the limiter
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Ridenusa4l
Posted on Tuesday, October 26, 2010 - 04:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

actually the GSXR 600 and 750 are the same motor, just the 750 has a bigger bore, and a little bigger valves...

Jake
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Jasbiz66
Posted on Tuesday, October 26, 2010 - 09:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Don't be scared of it..................
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Mickeyq
Posted on Tuesday, October 26, 2010 - 09:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Cheapest and healthiest way to lose weight for you and your bike? Switch to veggie diet--I have dropped 25 Lbs in 6 months and feel much better and accordingly lighter. Blood pressure prob gone/cholesterol normal...And, yeah, my 1125R is faster. I was 235, now 210 and target is 190. My 1125R will then be able top out correctly.
:-))
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Ratbuell
Posted on Wednesday, October 27, 2010 - 12:08 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My stock CR will do 125 easy.

In third.

Take a track day, or an advanced rider course, if you're going to do stuff like that. 125 is not the time to get "a little nervous". Learn to do it, the right way so you don't get nervous...or just don't do it.

You and your bike will live longer.
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Smit3833
Posted on Wednesday, October 27, 2010 - 01:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ratbuell beat me to it, keep shifting up and you will see speeds much higher than 125mph very fast.
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