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The Cheap Utility Bike
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Fai Mao  
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 More options Sep 19 2012, 9:57 pm
From: Fai Mao <i.am.fai....@gmail.com>
Date: Wed, 19 Sep 2012 18:57:01 -0700 (PDT)
Local: Wed, Sep 19 2012 9:57 pm
Subject: The Cheap Utility Bike

Hi

Seeing some of the really cool, heavy duty utility bikes people talk about
here I thought I’d start a thread about the other end of that scale and
post a few pictures of a cheap, almost unrideable bike I converted on a
small budget into something useful. I have about $450 total investment in
this machine.

The background; I took a short term position on Guam I didn’t want to move
one of the good bikes I have in Hong Kong because Guam is not a very
bicycle friendly place in large part because of the packs of aggressive
feral dogs that chase cyclist as an avocation and the constant rain I
didn’t think I would have much opportunity to ride. Once here I found out
that because I had not driven in 15 years it was going to take me 12 to 15
months to get a driver’s license and since there is no mass transit to
speak of I was stuck walking. So I bought a cheap bike to ride the ½ mile
to the grocery store, the bank, church and the other mundane places people
need to go.

Here is a picture of the original configuration of the bike:  

http://www.amazon.com/Mongoose-Xcom-700c-Bike-Blue/dp/B0085WB0EU

For a department store bike this thing gets rave reviews. Therefore I
thought that I could use it since the area I live in is rather flat and I
didn’t have the time to find a real bike shop.

I think that Sears and K-Mart pay someone to write the reviews. Mongoose
should be ashamed of themselves for putting their name on this bike it was
simply terrible. I should have probably just bought a different bike and
thrown this one away but just kept thinking "One more change" Now all that
is left of the original bike is the frame, headset saddle and brakes

The problems:

1.       When the tires were inflated to about 20 PSI less than the max
listed they rubbed the top of the non-adjustable fenders.  But as the bead
of the tires was not tight if I kept the pressure low enough to not rub the
fender the tire would de-bead in a corner and be essentially flat if I
carried any load at all.

2.       The frame is spaced 130 but the rear wheel was 127 since it is an
aluminum frame this was somewhat problematic.

3.       The 13-28 7 speed freewheel was Ok the 44 tooth front chain wheel
was a bit high for my creaky old knees

4.       The handle bars are good for a very short ride but the swept back,
sit-up-and-beg position does not lend itself to climbing a hill or
outrunning big dogs

5.       The brake pads stop well but are inexpensive units that are almost
impossible to toe and squeal like a cat with its tail caught in a door

I tried minor fixes like adjusting the fenders and brakes. The brakes can
be made to stop pretty well but are still noisy. I ended up taking the
fenders completely off hoping to use the tires that came with the bike.
However even at pressure the bead would not seal right and the front tire
blew off the rim at about 60 PSI. I do not know if this was problem with
the tire or the factory rims.

Since I still didn’t want to bring a bike from Hong Kong here because I
didn’t want the airline damage it.  I could either buy a different bike or
modify this one.  I took a trip back to Hong Kong to see the family in June
and dipped into my dead parts box and ordered other things mail order.

I ended up replacing the wheels, the rear derailleur, the crank, the bottom
bracket, handle bars, seat post, rear cassette (Old wheels used a free
wheel) the chain, the pedals and shifters. I added a front derailleur,
computer, bar-ends a water bottle cage, a set of small panniers and a set
of lights with a bottom bracket generator. (However I would now never ride
at night here as the dogs would eat me)

An odd issue was there is no cable stop for the front derailleur cable. The
picture shows the bike with zip-ties used for this. That worked but I have
since bought a clamp-on cable stop which also helps to keep the pump in
place

The bike is actually comfortable. Since some of the parts were things I had
and the others are rather low end like SRAM x-3 Derailluers and shifters
the total cost for parts was about 350 dollars. The bike can now carry
about three sacks of groceries in the bags and on the rack. If I stay out
of residential areas where the dogs are and on the shoulder of main roads
like Marine Corps Drive then I can go pretty much all over Guam given
enough time. Generally I ride the bike over to the K-MArt on my day off and
take the tourist buses to shop or go out to eat from there then ride back
home later.

I really like the Vitoria Randoneer tires. They are 700X38 and roll very
well with a nice reflective white wall. I bought them because they were
cheap but I have been really pleased with how well they perform and will
buy them for other bikes. The low end SRAM derailleurs also work very well.

The spray bottle in water bottle cage contains a home-made do repellant. It
is mainly tap-water with a few drops of dish washing soap and 3
table-spoons of ammonia.  I have no idea if this is considered humane or
not. Since the dog I spray it on is trying to bite me I do not care.

Her are some photos of how the bike looks now

http://s10.photobucket.com/albums/a117/Phil_hk/Bicycle/Mongoose/?acti...


 
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Discussion subject changed to "{BL} The Cheap Utility Bike" by alan lewis
alan lewis  
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 More options Sep 20 2012, 12:54 am
From: alan lewis <drbaba...@gmail.com>
Date: Wed, 19 Sep 2012 21:54:06 -0700
Local: Thurs, Sep 20 2012 12:54 am
Subject: Re: {BL} The Cheap Utility Bike

Great write up.  
I just love the imagery.  Dirt and feral dogs, and what not.  Just make it work, huh?
Good luck and thanks.

On Sep 19, 2012, at 18:57 , Fai Mao wrote:


 
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rose b  
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 More options Sep 20 2012, 6:55 pm
From: rose b <iwasinsultedbyabi...@gmail.com>
Date: Thu, 20 Sep 2012 18:55:11 -0400
Local: Thurs, Sep 20 2012 6:55 pm
Subject: Re: {BL} The Cheap Utility Bike

u got a nice sense of humor
and that really was a nicely written piece of work
can u write a book?


 
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Gary Palmer  
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 More options Oct 1 2012, 1:40 pm
From: Gary Palmer <palmerg...@gmail.com>
Date: Mon, 1 Oct 2012 13:40:27 -0400
Local: Mon, Oct 1 2012 1:40 pm
Subject: Re: {BL} The Cheap Utility Bike

Ahhh, Guam!  To be honest I have a lot of good memories of Guam (I do
remember the rain),but I was stationed there while in the U.S. Navy from
1992-1993 so I probably have a much different perspective.  I learned to
scuba dive while there, and did somewhere in the neighborhood of 50+
dives in Guam, not including a couple in Saipan.  There was a beautiful
beach on the base called Gab-Gab beach but I'm not sure if you
can get there if not active duty or qotherwise able to get on the base.
Never rode a bike there, but did a lot of jogging staying in shape, and
went through both typhoon Omar, and an 8.0 earthquake while there so a lot
of fun and excitement!  I also remember a lot of car accidents during the
rainy season because instead of gravel in the asphalt they used crushed
coral, and that makes the road slippery when wet so be careful! Good job on
the bike!  Necessity is the mother of invention- or in this case the mother
of rebuilding with better parts!

On Thu, Sep 20, 2012 at 6:55 PM, rose b <iwasinsultedbyabi...@gmail.com>wrote:


 
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