Car tyres on bikes?

[george formby]

Just a quick question.

Is a bike warrantable with a car tyre on the back, not for the pillion, actually on the back wheel?

Also, would insurance pay out in the case of visiting the scenery due to loss of rear wheel traction in a corner?

Some of ewes may already know why I ask. Just been into town and spotted a big cruiser outside the pie shop lounging resplendently on it's side stand with a tiny, wee, sidewall contact patch on the road and a huge expanse of tread in the air.

It's not important, it just offends my feeling on physics.

[FJRider]

Just a quick question.

Is a bike warrantable with a car tyre on the back, not for the pillion, actually on the back wheel?

Also, would insurance pay out in the case of visiting the scenery due to loss of rear wheel traction in a corner?

Some of ewes may already know why I ask. Just been into town and spotted a big cruiser outside the pie shop lounging resplendently on it's side stand with a tiny, wee, sidewall contact patch on the road and a huge expanse of tread in the air.

It's not important, it just offends my feeling on physics.

Legality depends on tread depth and tire condition.

[Laava]

I hope the fuckwit who did that also has one of those "retard only" novelty bash hats the gang members seem to favour? Just to justify the picture in my mind y'see!

[george formby]

Legality depends on tread depth and tire condition.

:crazy: That's a bit scary.


I hope the fuckwit who did that also has one of those "retard only" novelty bash hats the gang members seem to favour? Just to justify the picture in my mind y'see!

I did not make an effort to see the hemlet. The tyre was enough glans for me.

Looked like a fairly typical cruiser couple out for a jaunt. Full gear, so no bad there.

I'm just a tad taken aback that the rider cannot see how small the cornering contact patch is, let alone the dynamics of riding a tyre designed to stay in a straight line. :sweatdrop

[Kickaha]

I'm just a tad taken aback that the rider cannot see how small the cornering contact patch is, let alone the dynamics of riding a tyre designed to stay in a straight line. :sweatdrop

It's become fairly common in the USA on large cruisers, fortnine did a video on it you can find on you tube

[Laava]

I know that they do it in the states and call it "darksiding" but they have thousands of miles of freeway over there. There is very little like that here...

[actungbaby]

I hope the fuckwit who did that also has one of those "retard only" novelty bash hats the gang members seem to favour? Just to justify the picture in my mind y'see!Nice .. Yep works for me bro .
I can feel bile fermenting .

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[actungbaby]

I know that they do it in the states and call it "darksiding" but they have thousands of miles of freeway over there. There is very little like that here...Yeah on goldwing facebook.
I see the posts .its there choice.


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[actungbaby]

:crazy: That's a bit scary.



I did not make an effort to see the hemlet. The tyre was enough glans for me.

Looked like a fairly typical cruiser couple out for a jaunt. Full gear, so no bad there.

I'm just a tad taken aback that the rider cannot see how small the cornering contact patch is, let alone the dynamics of riding a tyre designed to stay in a straight line. :sweatdropIt deform plus you ride certain way its not like going .drag a knee .do peace sign with de free hand.[emoji16]

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[FJRider]

I hope the fuckwit who did that also has one of those "retard only" novelty bash hats the gang members seem to favour? Just to justify the picture in my mind y'see!

I hope the fuckwit who did that is (at the very least) ... Organ Donor specified on their License ...




:crazy: That's a bit scary.

As is often the case ... a good idea may not be that good in hindsight.

I would love to be there when hindsight arrives for him ... :laugh:

[spanner spinner]

Just a quick question.

Is a bike warrantable with a car tyre on the back, not for the pillion, actually on the back wheel?

Also, would insurance pay out in the case of visiting the scenery due to loss of rear wheel traction in a corner?

Some of ewes may already know why I ask. Just been into town and spotted a big cruiser outside the pie shop lounging resplendently on it's side stand with a tiny, wee, sidewall contact patch on the road and a huge expanse of tread in the air.

It's not important, it just offends my feeling on physics.



A car tyre fitted to a motorcycle was a WOF fail when I was doing motorcycle WOF'S and still is a warrant fail as below

d) a tyre that is not compatible with the vehicle to which it is fitted, eg a tyre is marked with any of the following:

i. ‘NOT FOR HIGHWAY USE’

ii. ‘NHS’ (Not for Highway Service)

iii. ‘FOR TRAILER USE ONLY’

iv. ‘ADV’ (Agricultural Drawn Vehicle)

v. ‘RACING PURPOSES ONLY’.

e) a tyre that is not suitable for a motorcycle, eg a car tyre fitted to a class LC motorcycle (Note 4)



here is link to the regulations if you be bothered reading through the rest of the legislation https://vehicleinspection.nzta.govt.nz/virms/in-service-wof-and-cof/motorcycles/tyres,-wheels-and-hubs/tyres-and-wheels

[george formby]

It's become fairly common in the USA on large cruisers, fortnine did a video on it you can find on you tube

I watched that vid awhile ago and some entertaining vids of darkside incidents on Deals Gap. The results of both kinda prompted me to post.


A car tyre fitted to a motorcycle was a WOF fail when I was doing motorcycle WOF'S and still is a warrant fail as below

d) a tyre that is not compatible with the vehicle to which it is fitted, eg a tyre is marked with any of the following:


e) a tyre that is not suitable for a motorcycle, eg a car tyre fitted to a class LC motorcycle (Note 4)



here is link to the regulations if you be bothered reading through the rest of the legislation https://vehicleinspection.nzta.govt.nz/virms/in-service-wof-and-cof/motorcycles/tyres,-wheels-and-hubs/tyres-and-wheels

Cheers for that clarification

[pritch]

A friend of mine did that when we were young, silly, and presumably broke. He can still give a colourful impression of the cornering characteristics of the tyre.

[george formby]

A friend of mine did that when we were young, silly, and presumably broke. He can still give a colourful impression of the cornering characteristics of the tyre.

I've ridden trials bikes with gummy directional tyres. Definitely not designed for leaning.

Cornering on tar seal was a buttock clenching experience. :shit:

[jellywrestler]

Just a quick question.

Is a bike warrantable with a car tyre on the back, not for the pillion, actually on the back wheel?

Also, would insurance pay out in the case of visiting the scenery due to loss of rear wheel traction in a corner?

Some of ewes may already know why I ask. Just been into town and spotted a big cruiser outside the pie shop lounging resplendently on it's side stand with a tiny, wee, sidewall contact patch on the road and a huge expanse of tread in the air.

It's not important, it just offends my feeling on physics.

the photo didn't come out, try posting it again

[george formby]

the photo didn't come out, try posting it again

As soon as the film is developed I'll post it up.. It's a 36 roll, so might be awhile. :laugh:

[GrayWolf]

Historically there were no bike or car tires... they were the same.
In fact most of us 60yrs and older riders will remember things like Avon speedmasters, and Dunlop TT100's... (you young un's today just don't know :D )
The reason many have gone 'darkside' is the high wear rate of tires on big cruisers. My full dresser is 5kg short of 400kg without a rider.

I've seen vid's and spoken to guys in the USA who 'darkside', some even 'double darkside' Rear tire on the front.. (which IS acceptable)
I've seen pictures of a certain brands (heavyweight bike tire) with actual chunks out of the rubber due to the bike being fully laden, two up + tour pack filled. I've also seen vids of bikes doing the 'dragon's tail' in USA running darkside. What they all say is the need to find the correct pressure and when moving the contact patch is actually quite large. some say wet braking is far better 'darkside'.

The BIG concern is the fact you only have one of the 'safety systems' properly fitted. The Bead does not fit a bike wheel properly (seated) but they say it is also VERY hard to get the tire to seat (and use high pressure to pop it into place).
With the aggressive construction of NZ roads (tar spray + volcanic chip) It is very tempting for the wear factor, but, as has been mentioned, we don't have the long USA highways here.

[Kickaha]

The Bead does not fit a bike wheel properly (seated) but they say it is also VERY hard to get the tire to seat (and use high pressure to pop it into place).

Bead on a car tyre is wider so it probably sits half on the safety hump