Large Filipino
Member
Been riding a lot this past week mostly on Cronus more than anything the buggy bike when I did my grocery and Wal mart runs and MOOP2 just to freak out the neighbors yes Colorado has been gifted with good weather this week.
While happily cruising along on Cronus at my nirvana 17 mph I had some thoughts.
And one of them is just what rpm speed do our engines like I mean yes my Titan kit will rev quite high sounding like a little dyno and with my 48 tooth sprocket I can get my top speed to about 20 mph give or take engine is quite screaming though. Maybe with a smaller rear sprocket I can get it up to 25 but I like it where it's at.
On the buggy bike it's quite scary with my less than idea brakes but at 20 mph in 3rd gear the engine is hardly breathing so it has more room for higher speeds. But I like my 15 to 20 cruising speed on my buggy bike preferably closer to 15 mph because of my brakes and in 3rd gear my engine is just purring along rpm's quite low I would guess 1500 to 2000 rpm.
MOOP2 has a 44 tooth rear sprocket the China Engine is rock and roll compared to the 4 strokes this baby just wants to move yet even with the 44 tooth sprocket top speed for me lays around 23 mph.
So I was thinking the other day when I was riding Cronus about my full size Ford F 150 I call Luther.
At 65 MPH in overdrive I have a 4 speed manual my engine RPM is just under 2000 rpm.
Now this straight 6 300CI engine is capable of I imagine 6500 rpm and will probably hold 5000 for a good long while as long as you got the right oil in it and your cooling system is up to par.
But then I'm noticing as engine size gets smaller,RPM's seems to climb a little. My wife's Volkswagen Beetle at 65 mph cruising speed her rpm's are above 3,000 RPM well she has a smaller engine and it's a turbo but I guess the engineers know what they were doing when they geared up that car. And I've been hearing some Americans here that bought a full size Japanese truck are
complaining about pulling torque but if they read their owners manual they would learn that they have it at too high a gear when climbing that their engines actually like to see 4000 RPM's when climbing unlike what were used to seeing in our American trucks at closer to 2,000 rpm's. I'm referring to the Nissan Titan here btw yes that truck likes 4000 rpm when climbing and I'm sure it relates to other import models.
So now we go to these quite small engines. I've been hearing people say they like to cruise at 25 mph and up and this is CRUISE now not every once in a while and it does seem like our little engines like high rpm speeds but when compared to car engines at best 4000 rpm is only half throttle here.
If we relate this to our bike engines I think top RPM's for a china 2 stroke I believe I read
it was about 7,000 rpm. So 7,000 rpm and you're going 25 mph on a 44 tooth sprocket if we relate this to how we take care of our car engines we should be cruising at half that rpm's to be 3,500 RPM. And that would relate to your speed being half of 25 which is 12.5 miles an hour.
But wait. This is a small engine. It LOVES RPM. So lets say cruising rpm is 5,000 rpm. that equates to about someone do the math here 17 to 20 mph?
Now of course with Pablo's shift kit you can cruise quite nicely and keeping your engine RPM's down. And that equates to long life and higher cruising speeds.
I started this thread because I'm quite curious to what all of you guys cruising speed is.
Mine is right about 16 to 18 mph any bike that I'm on.
And also what you all think safe RPM's for your engines are I really don't consider redline as cruising speed safe in any way.
I'm just curious because my math is telling me that some of us are riding with our engines screaming here.
While happily cruising along on Cronus at my nirvana 17 mph I had some thoughts.
And one of them is just what rpm speed do our engines like I mean yes my Titan kit will rev quite high sounding like a little dyno and with my 48 tooth sprocket I can get my top speed to about 20 mph give or take engine is quite screaming though. Maybe with a smaller rear sprocket I can get it up to 25 but I like it where it's at.
On the buggy bike it's quite scary with my less than idea brakes but at 20 mph in 3rd gear the engine is hardly breathing so it has more room for higher speeds. But I like my 15 to 20 cruising speed on my buggy bike preferably closer to 15 mph because of my brakes and in 3rd gear my engine is just purring along rpm's quite low I would guess 1500 to 2000 rpm.
MOOP2 has a 44 tooth rear sprocket the China Engine is rock and roll compared to the 4 strokes this baby just wants to move yet even with the 44 tooth sprocket top speed for me lays around 23 mph.
So I was thinking the other day when I was riding Cronus about my full size Ford F 150 I call Luther.
At 65 MPH in overdrive I have a 4 speed manual my engine RPM is just under 2000 rpm.
Now this straight 6 300CI engine is capable of I imagine 6500 rpm and will probably hold 5000 for a good long while as long as you got the right oil in it and your cooling system is up to par.
But then I'm noticing as engine size gets smaller,RPM's seems to climb a little. My wife's Volkswagen Beetle at 65 mph cruising speed her rpm's are above 3,000 RPM well she has a smaller engine and it's a turbo but I guess the engineers know what they were doing when they geared up that car. And I've been hearing some Americans here that bought a full size Japanese truck are
complaining about pulling torque but if they read their owners manual they would learn that they have it at too high a gear when climbing that their engines actually like to see 4000 RPM's when climbing unlike what were used to seeing in our American trucks at closer to 2,000 rpm's. I'm referring to the Nissan Titan here btw yes that truck likes 4000 rpm when climbing and I'm sure it relates to other import models.
So now we go to these quite small engines. I've been hearing people say they like to cruise at 25 mph and up and this is CRUISE now not every once in a while and it does seem like our little engines like high rpm speeds but when compared to car engines at best 4000 rpm is only half throttle here.
If we relate this to our bike engines I think top RPM's for a china 2 stroke I believe I read
it was about 7,000 rpm. So 7,000 rpm and you're going 25 mph on a 44 tooth sprocket if we relate this to how we take care of our car engines we should be cruising at half that rpm's to be 3,500 RPM. And that would relate to your speed being half of 25 which is 12.5 miles an hour.
But wait. This is a small engine. It LOVES RPM. So lets say cruising rpm is 5,000 rpm. that equates to about someone do the math here 17 to 20 mph?
Now of course with Pablo's shift kit you can cruise quite nicely and keeping your engine RPM's down. And that equates to long life and higher cruising speeds.
I started this thread because I'm quite curious to what all of you guys cruising speed is.
Mine is right about 16 to 18 mph any bike that I'm on.
And also what you all think safe RPM's for your engines are I really don't consider redline as cruising speed safe in any way.
I'm just curious because my math is telling me that some of us are riding with our engines screaming here.
