Engine RPM at 60 MPH
Moderator: rztom
Engine RPM at 60 MPH
Hi all,
On my conversion I'm trying to get my gearing / sprockets sorted out (as the bike revs to high right now due to the 17 inch tire). Could someone tell me what the stock RPM is at 60 MPH?
Thx.
J
On my conversion I'm trying to get my gearing / sprockets sorted out (as the bike revs to high right now due to the 17 inch tire). Could someone tell me what the stock RPM is at 60 MPH?
Thx.
J
Re: Engine RPM at 60 MPH
I'm running a 17 tooth front and a 39 tooth rear on my hybrid with 17" wheels. At 60 mph I'm turning about 5200 rpm.
Hope that helps.
Charlie
Hope that helps.
Charlie
1985 RZ 421 Hybrid viewtopic.php?t=9655
99 R1 USD front end
Tarrozi Hi-rise clipons
TrailTech Endurance II Speedo/Odometer
VJ23 swingarm
CBR F4i rear shock/custom dogbones
JL GP stainless pipes
2018 XSR 900
99 R1 USD front end
Tarrozi Hi-rise clipons
TrailTech Endurance II Speedo/Odometer
VJ23 swingarm
CBR F4i rear shock/custom dogbones
JL GP stainless pipes
2018 XSR 900
Re: Engine RPM at 60 MPH
Yes it does! Thx!
J
J
Re: Engine RPM at 60 MPH
http://www.gearingcommander.com/" onclick="window.open(this.href);return false;
Re: Engine RPM at 60 MPH
Just got back from a ride and at 60 mph I'm actually turning 4800 rpm.
Charlie
Charlie
1985 RZ 421 Hybrid viewtopic.php?t=9655
99 R1 USD front end
Tarrozi Hi-rise clipons
TrailTech Endurance II Speedo/Odometer
VJ23 swingarm
CBR F4i rear shock/custom dogbones
JL GP stainless pipes
2018 XSR 900
99 R1 USD front end
Tarrozi Hi-rise clipons
TrailTech Endurance II Speedo/Odometer
VJ23 swingarm
CBR F4i rear shock/custom dogbones
JL GP stainless pipes
2018 XSR 900
Re: Engine RPM at 60 MPH
You are geared quite low. My LC turns around 6000 rpm at 60 mph (100 km/hr).
'82 RD350LC in '81 colours, OEM pipes, UNI filters
'85 FZ750
'85 FZ750
Re: Engine RPM at 60 MPH
Yeah, I probably am. I might go up a couple of teeth on the rear the next I do chain and sprockets. But I mainly ride higher speed back roads and the gearing works well for me.Hooligan wrote:You are geared quite low. My LC turns around 6000 rpm at 60 mph (100 km/hr).
Charlie
1985 RZ 421 Hybrid viewtopic.php?t=9655
99 R1 USD front end
Tarrozi Hi-rise clipons
TrailTech Endurance II Speedo/Odometer
VJ23 swingarm
CBR F4i rear shock/custom dogbones
JL GP stainless pipes
2018 XSR 900
99 R1 USD front end
Tarrozi Hi-rise clipons
TrailTech Endurance II Speedo/Odometer
VJ23 swingarm
CBR F4i rear shock/custom dogbones
JL GP stainless pipes
2018 XSR 900
Re: Engine RPM at 60 MPH
I prefer stock gearing, as I run non o ring chains. O ring chains rob power on small bikes. Going smaller on the front sprocket wears out the chain faster. I would shoot for stock ratios on the tach by altering the rear sprocket. That's my $0.02.
Rory
2 1984 RZ350s
1985 RZ350
9 1986-1990 RZ350s
2000 ST2
2005 749
2005 749 with 999 engine
2 1984 RZ350s
1985 RZ350
9 1986-1990 RZ350s
2000 ST2
2005 749
2005 749 with 999 engine
Re: Engine RPM at 60 MPH
Small aside: Neither the Speedometer Nor the Tachometers have history of being accurate... far from it
Even when Brand new. Speeds you can verify with a GPS.
Rpms with a proven tach device.
Best know what yer dealing with... before fooling with the bits.
Even when Brand new. Speeds you can verify with a GPS.
Rpms with a proven tach device.
Best know what yer dealing with... before fooling with the bits.
Re: Engine RPM at 60 MPH
Typically 10% high. 60mph in sixth gear should be 5k rpms. My analog tach shows 5500 at 60mph while the Vapor I have displays 5k at 60. Tthe 350/400 RD's are also geared to turn 5k at 60mph.Bare wrote:Small aside: Neither the Speedometer Nor the Tachometers have history of being accurate... far from it
Even when Brand new. Speeds you can verify with a GPS.
Rpms with a proven tach device.
Best know what yer dealing with... before fooling with the bits.
1973 RD350
2014 Suzuki DT1000
1979 RD400F Daytona Special
1984 RZ350
2014 Suzuki DT1000
1979 RD400F Daytona Special
1984 RZ350