Wrench Tips
August, 2006
by David Meek, CBC President 2006
Riders beware, I have not been schooled on bicycle mechanics but I did stay in a
Holiday Inn Express last night.
1.
Cleaning your bike often is the best preventive maintenance you can perform. The
time you spend wiping your bike down helps even the mechanically impaired
understand the functions of its components. While beautifying your ride, you
will spot developing problems before they bring you to a stop on the side of the
road or tail.
2. Clean
your bike by wiping it down with mild soap and water using sponges or cloths.
Road bikes never get dirty enough to warrant the use of forced water. Mountain
bikes sometimes need forced water to get the job done. Be sure to re-lube
cables, pivots and the drive train after hosing a bike off.
3. Clean
your bike from the top down to avoid wiping dirt back on clean parts.
4. Clean
your chain with degreaser then apply chain lube. If you have a quick link you
can remove the chain, drop it in a two liter cola bottle with a strong
degreasing soap and shake until clean.
5. Clean
cables by slipping housings out in as many places as possible. Lube the cables
with grease and slide housings back and forth to work grease into housing. Wipe
off excess grease and slip housings back in place. This simple process can
restore many shifting problems.
6. Replace
cables each season. Cables are highly stressed at the location of the lead head.
Slip housings out to loosen cables and check for cables fraying inside the
shifters/brake levers half way into the season. Replace if even one strand is
broken.
7. Check
bolts and for looseness. Apply sufficient pressure with a wrench to insure the
bolt has not loosened. Do not tighten bolts a little each time you check for
looseness. This practice will eventually result in thread failure or collapsed
carbon components.
8. Check
brake pads for wear, most pads have self cleaning grooves. When these groves
wear away it is a good indicator to replace the pads.
9. Lightly
sand pads and clean and degrease rims or rotors to renew braking power.
10. If
your brakes squeal, the pads should be set to toe in a little at the front. When
the front edge touches the rim the back of the pad should have a gap equal to
about the thickness of a credit card. Adjust this angle as needed to compensate
for pad wear.
11. Insure
calipers are centered on the wheel. While the bike is at rest apply the brakes.
If the wheel deflects to the side, loosen the mounting bolt, center the caliper
and retighten mounting bolt.
12. If
your rear derailleur starts to rattle the cable most likely has stretched or the
housing has compressed. Cables will not get tighter unless something has
changed, bent or kinked. Adjust the adjuster out in ¼ turn increments. Remember
where you started from in case you need to return to the original setting. It
takes only ¼ to ½ turn of the adjuster to compensate for minor cable stretch.
13. Store
your bike with the chain in the smallest sprockets at both ends. This eliminates
most cable stretch/housing compression and derailleur spring fatigue. Remember
your bike spends most of its life at rest. Don’t stress the drive train
needlessly
14. Check
your chain for wear every few thousand miles. Chain checking tools are cheap or
you can take your bike to a shop. The check takes only a minute and should not
cost anything. Replace worn chains and rear cassettes together. Your front chain
rings will last through many chains and cassettes if you stay on top of chain
wear.
15. When
repairing a flat tire, run your fingers around the inside of the tire to insure
no objects have become imbedded in the tire. Be careful not to cut yourself on
glass, tacks, thorns, etc. Failure to remove imbedded objects will puncture the
replacement tube when you air it up.
16. Patch
punctured tubes at home not on the side of the road. Tubes are repairable and
patches cost only a few pennies. With a little practice you will be able to
apply a patch that will make the tube as good as new. However patches may not
hold air every time so always air up a patched tube a day before a ride to check
for leaks overnight.
17. Do not use an untested patched tube as a spare on a
ride.
18. The
quick release skewer levers on your wheels can be used as tire levers in an
emergency.
19. If you
get a flat and have no way to repair it, remove the tube and pack the inside of
the tire with leaves, grass, paper etc. This will prevent a long walk home.
20.
Bicycle repair and maintenance is not rocket science. Take your time; most
people can perform basic repairs and maintenance themselves. When attempting
something for the first time schedule it well ahead of your next ride so that
your friendly bike shop can make it right if you do something wrong.

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