Evening star., 1925-12-06
TYPES OF WHEELS TOPIC
POPULAR In MOTORDOM
Advantages and Disadvantages Frequent
ly Discussed-Facts Adduced Which
Car Owners Should Know.

the drive from the hub 10 the rim
The wheel is really composed Of solid
spokes,' which, being made Of steel
should be Stronge4 than wood whe els
of equal weight. However. since the
ma jority Of the disc wheels are de
signed to be removable for tire
changes, they must not be as heavy
as the wood wheel, which is per,na
nent. Thus il may not be as strong
And 1t may not he as strong rs IA.
improved wire wheel of iual weight
because solidity Of construction Gtal-
tlcuiarly in the case Of a single unit
"here break NAV cause a complete
breakdown does not neccssarilv -
dicate strength. In this respect In,
wire wheel might he said to offer some
OF the advantages Of the suspersIo,
bridge.
Mechanical points for and aEains'
inc disc wheel vary according to four
types in use. The single disc is 1f,
simplest, being the cheapest To make
the weakest and the least appea lin.
to the eye. It has the appearance o-
fiat plate with the rim PROJECTING.
inward at the felloe The dual dis.
forms are an arc viewed in sectioi.
and, therefore, offers stronger cor.
struction and far better appesrance
In spite of the fact that il is cornposed
VI no flNfS instead OF one, 1t Is not
necessarily heavier, since the sel.t
rat" discs can be made of thinner M.
terlal third type Of disc Hhce!
looks like the single plate. but ,,pnl.
examination IL is seen 10 lie compoSed
OF three laminated discs of yarvirS
dld1neterS, the thiCkest portion being
near the hub
Another type OF disc wheel looks the
same as types ] and 3. but the gradlI-
alton in thickness is formed of one
piece. In types >, 3 and il Will be
noted that the greatest thickness and
strength is found at the hub This
Is the point where the poorly con
stfucted wire wheel is weakest. Thai
the real strain in any type of wheel
comes al the hub is proved by the
strength of the wood wheel at this
point The wood wheel is still in the
majority and has always proved salts
factory, though not ideal II IS nat
ural, therefore. that other types, no
matter how radically different in an
pearance. should follow some Of IT'S
mechanical aXioms.
The dual disc would seem to oTer
the greatest advantage among the
wheel types, not only because Of il
! reinforcement feature, but also he
cause Of its construction so as TO offer
a slight give in case of road shock
Ana when II is considered that these
| wheels are bing equipped with de
mountable rims a new advantage IS
offered The time is fast approach
| ing when demountable rims on both
disc and wire wheels will be the rule.
but the detachable wheel feature will
not be sacrificed. For a puncture or
blowout the driver will change rims
and tires with the spare wheel. The
extra wheel will be carried in case he
should break wheel in a skid or col
liSion.
Differing Viewpoints. 4.
Much has been said in favor of the
ease with which disc wheels can be
cleaned; and while this is true, It
must be said in favor of the wood
wheel that IT doesn't look as bad as 2
| disc wheel when it is dirty. This
means that during the bad weather.
when 1t is useless to clean the car. the
wood wheel will be the most present
able: And despite all the smartness
of the disc and wire wheels, a well
Continued on Seventh Page)