Jump to content

300+ mph on bike


Recommended Posts

In the days when I took an interest in such things, land speed records had to be achieved with a run in each direction within a limited time frame. Do those rules not apply now?

 

Edit - having written this, I went away and looked up the land speed records for motor cycles. The records show a twin Suzuki engined bike as having done 367 m.p.h in 2010, so now I am even more puzzled.

Link to comment
Share on other sites

In the days when I took an interest in such things, land speed records had to be achieved with a run in each direction within a limited time frame. Do those rules not apply now?

 

this is still the case.

you must perform a run in one direction, turn around and come back. these 2 runs will then be added and divided by 2 to give you the total top speed.

 

this is to ensure wind and other factors like gradients are factored out as much as possible

Link to comment
Share on other sites

"the fastest in the world" and the "world record holder" can often be two different things, especially in america where they seem to ignore the run in both directions and instantly claim victory, I can kind of understand it as 311mph IS 311mph but to be official they got to do it again in the other direction!

 

have you any details on the 367mph, is it a sit on or an encapsulated bike? this might be the reason for the inconsistant details

Link to comment
Share on other sites

"the fastest in the world" and the "world record holder" can often be two different things, especially in america where they seem to ignore the run in both directions and instantly claim victory, I can kind of understand it as 311mph IS 311mph but to be official they got to do it again in the other direction!

 

have you any details on the 367mph, is it a sit on or an encapsulated bike? this might be the reason for the inconsistant details

 

The FIM lists a whole range of categories for record purposes and I can see that this might well be a class record (if it met all the conditions), but the headline "311.94 MPH: WORLD'S FASTEST MOTORCYCLE" gives the distinct impression that it is the fastest ever. Reading the text, the term "sit on" is used so I assume it's really a class record.

 

The basic FIM rule seems to be "piston engined and driven through the wheels" and apart from the categories they list the overall record of 367 mph as the fastest irrespective of the category.

 

Actually I got the speed wrong. I should have said 376 mph not 367 mph (senior moment?)

Link to comment
Share on other sites

no-one said you did, it is quite astounding its just the video says its the worlds fastest bike and sagitar found one faster..... which is just as crazy.... But i can do 34mph down hill on my mountin bike with no engine so i trump them all :D

Link to comment
Share on other sites

Who mentioned land speed records???

 

All it said is that he is the first guy to exceed 300mph on a sit on motorcycle

 

Perhaps I took the headline too seriously and for that I apologise.

 

I had a childhood interest in speed records and people like John Cobb and George Eyston were my heroes. So when I see a headline claiming that as a result of a record attempt a vehicle is now the world's fastest, I sort of naturally assume that we are talking about a properly organised and supervised record attempt meeting the agreed criteria for recording such things. It was wrong of me and I should have read the text more carefully and realised that it might be just a specialist magazine sounding off about a local hero. In my own defence however, they do refer to land speed records later in the piece.

 

The body that is accepted as the world authority for motor cycle records is the FIM. Translated into English it's the International Motorcycle Federation. They have many record categories mainly based on engine capacity, aspiration method and whether the bike is non-streamlined; partially streamlined or fully streamlined. I looked up their records and I am pretty sure that the speed achieved would break their current record for a partially streamlined machine with an engine not exceeding 1350 cc if the criteria for record attempts were met. It doesn't meet the absolute record however, which has exceeded 320 m.p.h. since the 1990s.

 

As a professional engineer, I find that one of the most impressive things about the report is getting 1000 h.p. from a 1299 cc engine. I wonder how long it lasts at top speed? Wasn't it Ferdinand Porsche who said the perfect racing engine crosses the finishing line and then falls to pieces. It's one of reasons why the attempt criteria include a return run in a limited period.

 

I'm grateful to you for making me think of old times that were good times and reviving my interest in a topic about which I had largely forgotten.

Link to comment
Share on other sites

...Wasn't it Ferdinand Porsche who said the perfect racing engine crosses the finishing line and then falls to pieces...

 

Also much the same attributed to Colin Chapman of course - "The perfect racing car would last until the chequered flag, then fall to pieces as it crossed the line."

 

Wonder if Colin adapted his quote from Porsche's? Certainly he was truer to that axiom than Porsche!

Link to comment
Share on other sites

  • 4 months later...
Front broke away really weird :lol:

 

Not really Tony.

 

The front wheel changed braking surface whilst he was on the front brake. change in grip / surface forced the wheel to either lock or 'skip' and causing the front end to let go.

 

very nasty surface though :o

Link to comment
Share on other sites

  • 1 year later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...