| Author | Message | ||
     Dre99gsx |
Those who have ridden the 1125r, can you comment on the seat of the pants difference between an XB12? If the 1125R's powerband is simply "an extension of the XB12", would it be safe to assume that an XB12 would keep up with an 1125R in straight line or initial punch (say in traffic) up to 100-120mph, but with the 6th gear and extended rpm range, the 1125r would just keep pulling? Also, since both bikes have about 80ft lbs, would you actually feel more acceleration on the 1125r? Just trying to gauge what advantages I would have with an 1125 for some spirited highway riding vs the XB... | ||
| Rubberdown |
I've owned a 12 and a 9 and ridden the 1125R for two sessions on the track. I's my impression that the 1125 will best the others in all performance tests including braking. I bet the others get better mpg though. | ||
| Spatten1 |
I bet the others get better mpg though. There is alway a sunny side, isn't there. | ||
| Icontender |
I have not rode the xb12r or 9r very much since I have a lightning long. But the huge difference for me was the wind tunnel created by the fairings. I was going prolly 140-150 mph with ease and still plenty of rpms left. The slipper clutch made it easy to slowdown on turn 1 at VIR. I also shifted around 6K since I was used to it from my XB. When I did use the full range it seemed to go forever. Power everywhere. A gsxr600 powerband's wet dream. My first session on this bike was amazing. I twisted the throttle and was like "holy crap". However, keep in mind I have only been on 600's and my xb12ss. This was the most power I have every felt between my legs. | ||
| Xb9 |
Well I wasn't watching the fuel gauge when I rode the 1125r @ VIR (too busy hangin on!)but here's my take: Handling characteristics are more similar to the longer wheelbase Super TT (which I was very impressed with @ Road America) than the 12r Front brake is way better than the XB's Regarding the engine there really is no comparison other than they are both a V-twin. I have a built 1208cc short stroke XB and where I would notice the 1125r's pulling me big time was accelerating off the corners. That thing just rockets off the corners. I would get pulled on the top end also, but the most dramatic was coming off the corners. Riding the 1125r, the big difference you notice (other than my comments above) is the NICE!!!!! smooth shifting 6 speed gearbox and the way-higher rev limit. This thing has a HUGE usable rev range and BIG power all the way through it. My experience riding a stock 12 is just when things started to get exciting in the rev range, you're hitting the rev limiter.  Not the case with the 1125r, it just keeps building to a high 10,500 rev limit. I wasn't constantly banging into the rev limiter like I do when I ride a 12, although I did hit the limiter on the 1125r a couple of times just to see what it felt like all the way up there.  "would it be safe to assume that an XB12 would keep up with an 1125R in straight line or initial punch (say in traffic) up to 100-120mph," My guess is the 1125r vs XB12 might be even off the line but once that stock XB12 hits the rev limiter in first the 1125r will be gone. "would you actually feel more acceleration on the 1125r?" Way more. Don't disregard the HP numbers. | ||
| Spatten1 |
Also, since both bikes have about 80ft lbs 80ft/lbs at 3k-4k rpm feels great when you roll on the throttle at low rpm, but unless you can rev the engine to higher PRM it never really gets translated into meaningful acceleration. | ||
| Spike |
After switching back and forth between my 12R and the 1125R at the last Inside Pass track day I'd say the biggest differences between the 1125R and my Firebolt would be the power, front brakes, and transmission--in that order. I didn't get a chance to fully explore the bottom-end power on the track, but I did take it down below 4k rpm a few times and it still pulls nicely from that range. It pulled from ~3500rpm or so about like my XB12, except when you get to 6800rpm you don't have to shift, it just keeps pulling for another ~4k rpm. If you did a roll-on against an XB12 in the same gear from the same RPM, they'd probably stay fairly even up until the XB12 had to shift. The 1125R would pull away from that point and continue gaining ground until the XB12 rider gave up. However, if I had an 1125R and were going to race against an XB12, I probably wouldn't start in the same gear at the same RPM. The extra ~4k RPM on the 1125R means you could easily go down a gear and really leave the XB12. The 1125R is definitely the faster bike regardless of the speed you're travelling, no question. I am curious about the fuel mileage on the 1125R though. This week my brother-in-law and I took a day off to go do some mountain riding. We both topped off before we left, then did about 100 miles of interstate riding before stopping to gas up again before we got to the twisties. We both checked our mileage at that fuel stop, my XB12R got 52.5mpg while his KTM SuperDuke got 37.8mpg. I checked my fuel mileage again at the next two fuel stops, it was 52mpg and 58mpg. | ||
| Dre99gsx |
excellent, this is the kind of comparison i've been looking for. It would make sense with the larger throttle bodies and double the valves gas mileage should suffer a bit. | ||
| Fresnobuell |
Plus don't forget higher revs chewing up fuel...You gotta give something up for 146 HP, right? I just hope it isn't embarrassing low--I saw one review where it got mid-20s MPG for one moto-journ. Mid-30s would be expected and acceptable IMO. | ||
| Ratbuell |
Correct me if I'm wrong (usually am), but doesn't the ODIS system include a fuel usage mode? Methinks I'll have to push that particular button at Pocono next week, just to see. We may have a bit more "realistic" riding environment there, since at the moment it's calling for rain. | ||
| Crashm1 |
Fuel mileage I bought a Honda RC51 this spring 1000cc, 90 degree V-twin, 4v, 61mm throttle bodies and a 10,500 red line. It SUCKS gas at an amazing rate when I ride it hard, I get about 30 mpg it ain't that much better when I'm just ambling then it gets 43ish. A definite change from the X1 which even when thrashing it it got in the high forties. That said the RC will flat walk away from a XB or tuber everywhere so I expect it to not even be close with the 1125r since it's got 15 horses over the my slightly modified RC. I am also planning on test riding an 1125 as soon as I can because the 51 is hell on my body. |
