Need to know bike speed from engine rpm

Need to know bike speed from engine rpm

Author
Discussion

H100S

Original Poster:

1,436 posts

174 months

Monday 30th March 2015
quotequote all
Any websites out there you could suggest?

Ideally I could enter tyre size and gearing to determine this. Two different bikes with non standard gearing.

Reason pit lane has a 20mph limit with penalty if exceeded. Naturally I'm don't want to incur any penalties.

Motorbike does not have a speedo. I figured if using 1st gear I could work out 20mph from engine rpm.

Race is this weekend.

H100S

Original Poster:

1,436 posts

174 months

Tuesday 31st March 2015
quotequote all
Only just checked back the thread, sorry for duplicating the thread i did it on my phone and must have got a bit trigger happy. Anyways ive requested the other ones are closed.

I think i will use a sat nav to determine speed then mark the rev counter to suit. Great suggestion, i can do this in the paddock once the track day is finished the evening before the event.