R17GSR
Registered user
This is as close to flogging a dead horse smiley I can find.
Dont even try Davy, your sense of humour has been taken over by the BMW Party, if you ever had one......
Dark side car tyres
- Thread starter R17GSR
- Start date
Dont even try Davy, your sense of humour has been taken over by the BMW Party, if you ever had one......
R17GSR
Registered user
So, seriously, you lot never run a rat bike or a courier bike, modded a road bike???
So you all had the Cortina, Sierra, Vectra salesmobile then found biking again?
So you all had the Cortina, Sierra, Vectra salesmobile then found biking again?
If you run a car tyre on the rear (or god forbid the front) of a solo bike you will at some stage fall foul of the law.
All UK police forces have a very good working relationship with the tyre suppliers and manufacturers who would no doubt send a representative to court to prove that the tyre is unsuitable and despite what the user thinks also DANGEROUS, it would end up with a conviction.
Also if an insurance claim was involved don't for one moment think that assessors are so stupid that they cannot tell a car tyre from a bike one and any insurance cover would be invalidated.
Recently I've seen 750's badged as 600's for insurance purposes where the rider has been convicted of no insurance as soon as the insurers found out as their cover was cancelled.
Insurance companies will use any method whether fair or foul to weasel out of paying up on a claim especially where there is a substantial injury payout involved so why give them the ammunition.
All UK police forces have a very good working relationship with the tyre suppliers and manufacturers who would no doubt send a representative to court to prove that the tyre is unsuitable and despite what the user thinks also DANGEROUS, it would end up with a conviction.
Also if an insurance claim was involved don't for one moment think that assessors are so stupid that they cannot tell a car tyre from a bike one and any insurance cover would be invalidated.
Recently I've seen 750's badged as 600's for insurance purposes where the rider has been convicted of no insurance as soon as the insurers found out as their cover was cancelled.
Insurance companies will use any method whether fair or foul to weasel out of paying up on a claim especially where there is a substantial injury payout involved so why give them the ammunition.
I have heard of this before, some Americans putting car tyres on FJR's, seemed to work ok by all accounts, handled better than squared off bike tyres, good luck with the project, it looks very interesting 
Davy F
Registered user
R17GSR
Registered user
I dont always wear a helmet on country lanes either........Is that also not pc on this site ?
R17GSR
Registered user
"As he slowly taps the enter key, a wry smile emerges from his lips"
R17GSR
Registered user
I have heard of this before, some Americans putting car tyres on FJR's, seemed to work ok by all accounts, handled better than squared off bike tyres, good luck with the project, it looks very interesting
Cheers ianboydsnr, I thought there would be someone on here with a bit of common sense in at least trying something different for a different application. Riding to the local bike cafe every Sunday dont count.
Maybe the rest would be happier to use a solid rubber tyre, hell no punctures.......just imagine a tyre full or air,,, what next.....imagine if you run a sharp object...........tossers
R17GSR
Registered user
Awwww Sleepy, upset your little I Love BMW site ?
R17GSR
Registered user
Well officer, if I list my mods to the insurer, including a rear tyre, 225x55xi6 Goodyear Eagle F1.....and said insurer accepts it WTF.
At the end of the day I pay my tax and ins. Maybe you lot should have a look at MAG ,org......or may best not.
its simple really, a car tyre is for a car and a bike tyre is for a bike. ring your insurer and ask them to put in writing that you are covered for a car tyre on a bike. they wont and you wont be insured.
ref the sidewall, the construction of a bike tyre takes into account the fact that it must transfer drive all by itself. ever wondered why trucks have many drive wheels? its because one tyre can only transmit the drive thru one pair of sidewalls and so to get the power down you need multiple sidewalls. same principle applies here. A car tyre side wall is designed with the assumption that it will operate in transmission mode as at least one of a pair and the wall is therefore thinner and of much weaker construction than a bike tyre
oh, and it will handle and look like shit
ref the sidewall, the construction of a bike tyre takes into account the fact that it must transfer drive all by itself. ever wondered why trucks have many drive wheels? its because one tyre can only transmit the drive thru one pair of sidewalls and so to get the power down you need multiple sidewalls. same principle applies here. A car tyre side wall is designed with the assumption that it will operate in transmission mode as at least one of a pair and the wall is therefore thinner and of much weaker construction than a bike tyre
oh, and it will handle and look like shit
littleredrooster
Registered user
...until you have to lean over to go around the corner. Then what happens? Where does your 40% go then? (and 40% of what, exactly. What is a 25% contact patch?)
I started riding (1970, God, I'm old...
) when the Avon Speedmaster was the rear tyre of choice for middleweights. They were nicknamed 'Squaremaster' and were truly, deeply dreadful things which squared-off within a few hundred miles and demonstrated why square tyres do not work on motorcycles. Unless, of course, you never have to lean it over or have a sidecar attached :shudder:I really cannot believe that someone with experience of riding a motorcycle would advocate putting a square, hard compound tyre on a bike and then claiming that it works satisfactorily.
I was going to comment further but why bother you are obviously the expert and know bettert than the tyre/ bike designers so I bow to your superior intelligence ?
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