Theoretical top speed for various front sprockets

sam2019

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This is a list I "borrowed" from the German RE forum. The values are measured using a Heidenau Tire with a real circumference of 1901 mm on a 17 inch wheel.

Obviously speeds beyond the 130kmh mark are unrealistic in real life with a stock engine so this list only applies to people who do a 477 upgrade and change their sprockets at the same time.

However you will trade a lot of fun (torque) at lower speeds if you do change to a 16 or 17 teeth sprocket.
 

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You can check this values yourself using gearingcommander.com

PS. with a 477 and a cam and a 16T the trade off is acceptable and the bike is much more at ease on european roads...
 
yesterday I took note of my throttle position relative to HWY speed (100kms here!) so in 5th gear at 100kph it revs at 5000 with a throttle position of under 20%.

How much of that 80% remaining would relate to speed I have no idea but is irrelevant due to speed limits in the Nanny State.

Does anyone here have experience with 0 to 100kph accel tests? I tried an app yesterday, it seemed to start timing from the get go but kept counting after 60mph so I am unsure of the 8.4 seconds reading , will try again using a Helmet mounted camera and see if I can verify this otherwise World Record :ROFLMAO: :ROFLMAO: :ROFLMAO:
 
Iā€™ve seen usually people take video of the dash board, going 0-100, and then adding a stopwatch on the video in post production.

Probably the app has to be set somehow?

Anyhow the video thing serves also as proof for you Guinness World Record! šŸ¤£šŸ¤£šŸ¤£
 
geo tracker a free app gives you these data
 

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drag racer may be another option
 

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