100MPH Bike!

One_Time

From BSNYC today....

http://cgi.ebay.com/100-MPH-High-speed-bicycle-Patent-sale-licensing-/250820870136?pt=Road_Bikes&hash=item3a6616bff8#ht_1096wt_1024

OMG! This guy's invented a bike that can go over 100 MPH! This could change cycling forever!

Seriously though, haven't read the full patent, but it looks like he's just stuck an extra set of chainwheels between the chainwheel and cassette to give it a massive gear, so you're not going any quicker unless you're a whole lot stronger. Am I missing something, or is this a stupid idea?

Lumen

Might need some aerobars for that.

TheInquisitor

That would be amazing. Unbelieveably dangerous but amazing all the same!

spdmrphy

One_Time wrote: »

From BSNYC today....

http://cgi.ebay.com/100-MPH-High-speed-bicycle-Patent-sale-licensing-/250820870136?pt=Road_Bikes&hash=item3a6616bff8#ht_1096wt_1024

OMG! This guy's invented a bike that can go over 100 MPH! This could change cycling forever!

Seriously though, haven't read the full patent, but it looks like he's just stuck an extra set of chainwheels between the chainwheel and cassette to give it a massive gear, so you're not going any quicker unless you're a whole lot stronger. Am I missing something, or is this a stupid idea?

It can only go over 100mph in his mind though. Wheeeeeee!!

Beasty

Here's one that did 166mph (268kph) on the flat:

Of course that ebay ad is a complete scam - wind resistance and power (with one or two other minor factors) determines your speed - getting above a certain gearing is pointless unless you can draft a dragster like Fred Rompelberg in the picture above

EDIT - and here's the bike:

bryaner

A snip, this time next year we'll be millionaires Rodders..:D

Undercover Elephant

USPTO asleep on the job again. He even disclosed an 1896 invention which is functionally the same.

Filed 8 years ago, granted 5 years ago, still no takers. No wonder he has to stick it on eBay.

cantalach

Even with aerobars, going down a 10% gradient and with a 30km/h tail wind, bikecalculator.com estimates that 100mph would require a power output of almost 4.9kW! The guy is a clown.

Lumen

cantalach wrote: »

Even with aerobars, going down a 10% gradient and with a 30km/h tail wind, bikecalculator.com estimates that 100mph would require a power output of almost 4.9kW! The guy is a clown.

I can't believe you bothered to work that out.

Khannie

Wait a second....if one extra chain wheel = 100MPH......then surely......<lightbulb>

I'm off to the patent office.

cantalach

Lumen wrote: »

I can't believe you bothered to work that out.

I didn't! The Bike Calculator did - I just typed in the numbers. I was just curious.

iregk

Some how I can't see my 23 Gator Skins lasting long at 100MPH.

Hungrycol

... and the second FD is attached to....

Keep_Her_Lit

One_Time wrote: »

is this a stupid idea?

Damned right it's a stupid idea. I mean, talk about missing the obvious! By far the easiest way to do 100mph on a bicycle ... no extra chainwheels needed nor nuthin ... is just to pedal 4 or 5 times faster than normal :rolleyes:

Keep_Her_Lit

cantalach wrote: »

The guy is a clown

... though possibly one with very impressive quads?