Tony-Bones

I am an instructor in wheel alignment and geometry theory, understanding the corperate level of ignorance in fast fit, what experience did you have, and how did they help you when things whent wrong?

this is the point of it all NO, geometry machines exist every were, but understanding this info is limited, so the best i can do is arm you with a bullet of knowledge, hence the wheels-inmotion.co.uk web site, if you are having problems, then post them here, or email the site?, when i train students, time and time again, i can see there only reading the headlines, and not the small print, this is the part that tends to be the real problem, very few make the grade and the main dealer normaly ends up the owner, denying resolve for the common man, since the fast fit industry replaces most tyres, and are ignorant to any thing other than wheel alignment for all tyre wear problems, the multi-million pound loss will be payed for by you?, dont try to educate the tyre centre, but understand what you need, and expect it, my replys in this forum is in responce to the link wheels-inmotion.co.uk but, the time i have must not be in conflict with the mission i'm on, what i will try and do is start a new topic, regarding wheel alignment and what went wrong, this study will help me and keep things alive.

Sadly, no and no, let me explain, 25 years ago I began on the path of wheel alignment and geometry, seemingly with more understanding then most? As I grew in qualifications, I out grew my industry, but stayed with it, becoming known I then acted as an adviser to some main dealers, and even qualified as an instructor, great reading so what's the point? The point is, the tyres on the lexus cost about, two days in france each, and the lexus has a unstable geometry, so at some time tyre wear will be encounterd ( fact, ) most owners will use the fast fit industry for tyre replacement (price being the attraction) and wheel alignment offerd as resolve for the tyre wear issue (wrong advise,) soon the cost of eight days in france is necessary due to the same tyre wear, so with an exellent sun tan the main dealer seems the best way to have the problem addressed, knowing this is not the case really p***** me off, so i built wheels-inmotion.co.uk so that the consumer had some chance of understanding the problems they have, and a guiding light offering forsight, advise should be free, to be fair in my dealings with main dealers, lexus has never been one, so seemingly they can walk the walk, I love the cars because they are multiple adjust, and a sick geometry can be made better and all are happy, but remember this, wheel alignment is the last angle of over 15 to be read and corrected on a geometry, meaning it is the last point of correction and inportance, if tyre wear exists go to lexus have the geometry re-set and all should be well? Hope I've helped Tony Bones wheels-inmotion.co.uk If not tell ask me >advise can be for free.

corporate ignorance i'm affraid? the move to 18" wheels does not present a problem to the geometry, but extra tyre width will, tyre contact on the road needs to be as complete as possible, and so does the weight distribution, the wider tyre becomes involved with an angle called the included angle, this generates the scrub radius, the kingpin inclination plus the sum of the camber - or +, since the wider tyre normally will be inset to the cars centre line, then the scrub radius will increase the cars weight on the inside of the tyre, and wear it? problem now is that the camber angle will still be seen as correct, and it is, this is the point that you educate the tyre centre, the position of the scrub needs to be moved, this is done by adjusting the camber angle to the off or unloaded state, useing applied tolerance, toward positive, monitor tyre wear and fine tune, job done,,,,,,

many thanks Jim,the web site offers enlightenment to you who are seeking resolve as far as tyre wear is concerned, I'm new to the forum tecnique and I'm posted all over this site, trying to reply(old school) the facts are, any tyre wear tends to be descibed as a wheel alignment problem (wrong) wheel alignment is one of over 15 angles suporting the cars geometry, and the last to be corrected, the geometry of the lexus is not conciderd as stable, so built in to the car is the opportunity to recover the cars original geometry settings, most of the problems in this forum tend to describe the wear problem as wheel alignment, but in fact most are camber, when the tyre wear is noticed most poeple have the wheel alignment tested, but becouse of the points of aplication when an angle moves it will influence another, so if your directive to a tyre center is wheel alignment, then that is what you get, but the camber issue will still exist, so will the tyre wear? Lexus had the forsight that through natural progression the geometry will need to be customized, then the portrait of the owner can be applyed, suggesting a couple between the driver and the geometry, one more thing I've noticed in the forum, the geometry of the car is disinterested in the make of tyre you use, the only differance is the cost of the loss? Hope I've helped Tony Bones

I am an instructor in wheel alignment and geometry theory, the tyre wear issues in the forum fall into the realm of enlightenment i teach and preach every day? Most tyre wear problems are descibed as wheel alignment problems and are addressed by the same means of corretion (wrong) any form of measerment must be a full wheel geometry so all or any figures are globle, front wheel alignment is one of over 15 angles that support the cars geometry, and in many cases may be found to be wrong if tyre wear is noticed, but since all the geometry angles of the car are shared there will be an influance between them, example being, if camber leans, it's points of aplication means it will also toe, so if the toe (wheel alignment) is measured and corrected this will still leave the camber issue, which can only be detected on a full wheel geometry, lexus in the maurfactering found that the cars geomatry will not stay stable, and will be subject to correction, all this said and done, there is no such than as a setting for any angle in any geometry?, all figures offerd by lexus are purley a suggestion and need to be customized applying tolerances within the range lexus calutate, this means my driving style, weight, area, speed, maintenance differ from yours, then so must the geometry, one more thing the geometry angles dont care what make of tyre you use, the only differance will be the cost of the loss??? Hope I've helped Tony Bones