@znomit avatar
UTC

Veni, Vidi, Posti
LX190 Friday afternoon special, [s]Primavera[/s], S50, too many pushbikes
Joined: UTC
Posts: 10893
Location: Hermit Kingdom
 
Veni, Vidi, Posti
@znomit avatar
LX190 Friday afternoon special, [s]Primavera[/s], S50, too many pushbikes
Joined: UTC
Posts: 10893
Location: Hermit Kingdom
UTC quote
Juan_ORhea wrote:
Perhaps this is a discussion for another thread but it isn't clear to me why tire size would affect contact patch size. Placing 200 pounds on a tire inflated to 25psi suggests an 8 square inch contact patch. This is undoubtedly an oversimplification, but what about tire diameter would change it?

Tire size can certainly affect the *shape* of this patch, but pounds / (pounds per square inch) seems immutable.

Or are there rolling effects that change the contact patch size?
That's a great physics experiment. Weigh a car (or scooter) by measuring contact patch size and tyre pressure.
@neil955i avatar
UTC

Member
Kymco DTX360
Joined: UTC
Posts: 10
Location: Cheshire, England
 
Member
@neil955i avatar
Kymco DTX360
Joined: UTC
Posts: 10
Location: Cheshire, England
UTC quote
You'll have a great time I'm sure. Having done a few 10 day tours of the western States on hire bikes covering similar or longer distances, I loved it. Just remember plenty of photos to share on here. No photos? It never happened!
@bob_copeland avatar
UTC

Ossessionato
2013 Vespa 300 Super, 2022 Kymco AK 550
Joined: UTC
Posts: 3807
Location: Minneapolis USA
 
Ossessionato
@bob_copeland avatar
2013 Vespa 300 Super, 2022 Kymco AK 550
Joined: UTC
Posts: 3807
Location: Minneapolis USA
UTC quote
Cdwise,

Sorry about your back pain on the Burgman 400 foot forward riding. When I was a youngman it did not matter. I rode straight up on motorcycles all the time pain free.

I retook up two wheel riding 20 years ago at age 55. I did not have the same back. The Burgman 400, for me, was demonstratively more comfortable than straight up on my Vespa GTS300. I do still ride the Vespa long distances. Another secret, as an old geezer, I take Ibuprofen if I am going to ride all day. It is like a miracle. During the ride and after - no back pain. Off the scoots, I have no problem with back pain except the regular quirks of old age.

Okay, I replaced the Burgman barcalounger with a Kymco 550 barcalounger.

Bob Copeland
UTC

Hooked
2005 Vespa GT200
Joined: UTC
Posts: 128
Location: San clemente ca
 
Hooked
2005 Vespa GT200
Joined: UTC
Posts: 128
Location: San clemente ca
UTC quote
Pop the pills and ride the Vespa equates to a comfy ride
Don't die wondering !

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