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View Full Version : 3000k RPM's at 60 mph?? Is that normal


screamineagle
09-20-2009, 03:06 AM
Just wondering if 3k rpms is normal for 60 mph in 5th gear. Have an xb1200r. Just seems a little high. Runs great at that speed just wondering if my sprocket is larger than normal.
mart7
09-20-2009, 03:47 AM
no that is normal
onelogue
09-20-2009, 04:08 AM
Yup normal. I thought the same thing so no worries :p
BRomanowski
09-20-2009, 06:35 AM
Has anyone tried one of the 29 tooth pulleys on the tranny side? I'd like to know how much of a difference it makes. I do a lot of highway riding and I'd like to bring down the revs some.
onelogue
09-20-2009, 10:02 AM
Has anyone tried one of the 29 tooth pulleys on the tranny side? I'd like to know how much of a difference it makes. I do a lot of highway riding and I'd like to bring down the revs some.
bye bye torque, but if you do that you will need a new belt too. What speed are you normally at on the highway cause 5th gear lower than 2500 rpm is borderline lugging the engine.
BRomanowski
09-20-2009, 06:24 PM
Well I'm usually cruising along at 75-80 so I'm at at least 4k most of the time. Would the extra 2 teeth make that big of a difference?
onelogue
09-20-2009, 06:47 PM
Hmm hard to tell how much a difference it will make. You will get better gas mileage.
I ride about 75-80 too. 3 to 4 k is pretty normal rpm range for our bikes. I rode three ours on average 80 to 90mph, and my bike handled it great.
Vabbott
09-24-2009, 04:35 AM
If you do the mod. post your average gas millage; I do mostly highway driving too and currently get 50-55 mpg. I would guess that it would decreas your RPM's about 500.
dave_xb12r
09-24-2009, 04:44 AM
Do a chain conversion. Then you can play with gear ratios all day long. There isn't many options with pulleys.
TerryS1980
09-27-2009, 06:51 AM
FreeSpirits makes a pulley kit for speed and one for torque.
Torque (http://www.trojan-horse.co.uk/prods/170.html)

Speed (http://www.trojan-horse.co.uk/prods/171.html)
screamineagle
09-27-2009, 02:20 PM
Only a 10% increase. so if your top speed is 140. it will increase to 154. With that in mind maybe you could expect a 10% increase in gas mileage. Not worth it in my opinion. Its about 700 us dollars.
TooFst
09-27-2009, 07:49 PM
Mine runs right around 3k at 60 in 5th!
screamineagle
09-27-2009, 07:56 PM
Same here bratha :( Maybe I should get a hyabusa... Of course white people dont look right on those. Kinda like a caddy with gold spoked rims. :D
konarider94
10-01-2009, 04:16 AM
and i think busa's are about 5 feet longer than a buell right? have fun in the twisties on that boat