Fair weather rider
I was gassing with my father the other day, motorbikes came into the conversation... he told me of a friend of his, 20 (probably 30+) years ago, who had Kawasaki something or other. Anyway he was at the lights lining up the car in the next lane. Green, nailed it but just sat there. Apparently sheared the valve and just span the rim in the tyre!
Anybody know if that's possible, confirmed, plausible or busted?
Bogeyman
Have you never heard of rim locks?
Go soothingly on the grease mud, as there lurks the skid demon
Fair weather rider
Nope, not till just before, I have heard of bead locks though (car nut by default). Tried looking up rim/wheel spin ... spinners for bikes, haven't seen those before thankfully. I think I've seen what wiki describes, only on old bikes?
Forum whore
Not that rim locks are used on road bikes.
The wheel would be impossible to balance.
Unexpected Spanish inquisition
KB is no place for facts Steve, you of all people should know that!Originally Posted by Katman
Before you judge a man, walk a mile in his shoes. After that, who cares? ...He's a mile away and you've got his shoes
In the riders seat
I would say difficult, but not impossible
Cost you a fortune in weights though
"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."
Fair weather rider
Weren't any facts, impossible is just an opinion.KB is no place for facts Steve, you of all people should know that!
Armature speller
2 opposing rim locks...
Forum whore
tyre must have been pretty soft and he used too much lube in mounting the tyre
Forum whore
pretty doubtful that the skinny tyres of 20 -30 years ago could generate enough friction froa small contact patch on the road to overcome the friction of the tyre bead/rim interface (18" diameter x 2 beads at normal road tyre pressure. Add to that the internal friction of the tube against the tyre (he did say it sheared the valve, which would only happen with a tube)
Add to that the normally fairly oily, smooth road surface found at most intersections wouldn't have much grip at the best of times .
I'd say busted, but its a good story, and it's good to be able to yarn with your dad about bikes.
it's not a bad thing till you throw a KLR into the mix.
those cheap ass bitches can do anything with ductape.
(PostalDave on ADVrider)
Bogeyman
An XL500's not a road bike?
I knew I wern't doin' it right...
I've spun a 510 Michelin with two. Was the old rubber ones, though, and there wasn't much air in there.
Go soothingly on the grease mud, as there lurks the skid demon
Forum whore
For solely road usage the tire pressure should be high enough that it would negate the need for a rim lock.
A dual purpose bike obviously has to be a compromise between both worlds.
Armature speller
Torpedo7 do some really cheap copies of billet Talon ones that work quite nicely.
Forum whore
Kinda 'depends'. I grew up with 50's bikes (yes yes I know, 12 bhp and I'm boring) but the more powerful ones and many of our dirt bikes would have one or two rimlocks on the rear. Remember that we didn't have that much choice in tyres, they all ran tubes and they would be left on as long as they could pass a wof. To be honest some of them were pretty hideous and the local shop would sell you old tyres for $5 if that was what your budget demanded - god knows how old some of them were. We would run old avon SM's that were like concrete .....
I ran 2 rimlocks on my 500cc Norton engined dirt bike running old Avon Gripsters or else the tyre would creep around the rim and eventually tear out the valve stem and used then on the grass track bike too.
Early Japanese bikes often ran horrible tyres with way too much nylon in them so if it was under inflated it might be possible
Night rider
I saw something similar happen at a standing 1/4 event in School Rd, Mosgiel, in 1973. A kwaka 500 tripple, and the rider lowered the tyre pressure to try and get more grip. Yep, he pulled the valve clean out of the tube.
Time to ride
There are currently 1 users browsing this thread. (0 members and 1 guests)
Posting Permissions
Reply With Quote
Bookmarks