[email protected] wrote:
> I have recently got into biking and have started commuting to work 12
> miles each way a twice a week. My bike is some heavy walmart'ish
> bike, 18-speed mountain bike, shimano gears. Honestly I have no
> issues with it, as it is tuned up correctly.
>
> However, all the websites say to avoid these bikes, why? I suppose if
> I spend $300+ I'll get a 10 pound lighter bike, but what difference
> is that going to make? The weight of the rider dominates the mass of
> the system, so a 10 lb bike weight reduction should only make you go
> 5-10% faster?
>
> So what are the real benefits of expensive bikes?
>
These are things I have seen perhaps 5 years ago, looking at other
people's cheap bikes:
In the past I have seen that Wal-Mart bikes had the bottom bracket and
headset bearing races cut right into the BB shell, and no dust covers on
the bearings (even for MTB/BMX bikes!). So when these bearings would go
bad, the bike frame (and basically the whole bike) was shot, because
from an economic standpoint it's not worth fixing the frame.
The wheel bearings may not be a standard size either, necessitating
buying a whole new wheel when the bearings go bad, instead of just
buying new bearings for the wheel. Another wheel problem is wheels that
won't stay true, and this can usually be traced to ultra-cheap spokes
used--but once again, it isn't worth it to pay a bike shop to lace good
spokes into a Wal-Mart rim and hub. You might as well just buy a
whole-better-wheel pre-built (which you can do, when the OEM wheel goes
bad).
Dept store bikes have been improving over time, but I haven't looked
closely at any examples lately. A lot of people buy them and never
manage to wear them out, so in that respect, cheap bikes are "good
enough" for a lot of people.
I don't have an original source for this, but it's a widely repeated
story: once during an interview, the president of Huffy was asked why
they built bikes so cheaply. His response was that research they did
showed that the average person who shopped for a bike at a department
store rode it less than 75 miles /total/ before getting rid of it. So
his company built their bikes to be as cheap as possible, while lasting
75 miles.
....A lot of non-bicyclists would think that riding 75 miles would be
something akin to the Bataan death march, but for many people it's only
a single weekend's worth of riding. For some people it's one day's worth
of riding.
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Personally I don't feel that the weight of cheaper bikes is really
detrimental to their typical use; comfort is far more important than
weight. My long-distance/recreational bike is a recumbent that weighs
near 40 lbs, and I'm much happier riding that than I would be riding any
sub-20-lb upright road bike.
~