I thought it would be a good idea to start a thread to discuss tips, tricks, lessons learned from experiences in flat repairs. I attempted to swap the stock bridgestone tires for Kenda tires on my XT-225. Completed the front, however got stuck on the rear tire. Bad on this bad experience, I started a quest for knowledge. Unfortunatly, everyone has an opinion as to the “best way” to brake the bead, install a inner tube, remove the tire off the rim, best lube to use...... and so on. During my web searches I found what I consider to be the BEST “How to” video walk thru for tire changing. The 3 part video is taught by Doug Schopinsky from Bridgestone tires. http://www.transworldmotocross.com/mx/how_to/article/0,13190,1215721,00.html
I also reviewed a How to DVD which had a few tips also.
description of topics
I bought a KLR650 rear wheel off e-bay ($200) to practice-practice-practice without thrashing my own stock rim/tire...first issue was to make sure I had the knowledge and tools. I gained the knowledge from the video link above the tools are in the following pictures:
6oz spray bottle, fill with windex to use as a bead lubricant agent. Trail size
tube valve cap has a brass valve stem core remover. A Plastic core removal tool may break (as has)
good small quality trail size gage
make 2x pads...one for brake rotor to rest on...one for my knees
brake rotor size = 13 inches in diameter...to match the 320mm front brake rotor
cut into 1/4 size pieces for easy storage in panniers
epoxy attach velcro on edges
so you can make a circle out of the 1/4 pieces!
in stowed stacked position, along with tire irons, bead holder and bead breaker
wheel pad + knee pad shown. Knee pad is .75 in cut thermarest.
wheel on wheel pad, knee pad, and tools aready to go.
all trail tools fit in this bag
what I carry
+ my trail air pump and jumper cables
air pump and electrical jumper cables
shown here from afar
fits here in right pannier...
release the air out of the inner tube by removing (unthreading the valve stem core), loosen the valve stem retainer bolt
try to break the bead by stepping on it...To no avail with this one. Notice the wheel pad protects the rotor
mount the bead breaking tool
17mm socket, same size as your front wheel bolt!
tighten up till bead move in toward the wheel drop (the center), still no luck
loosen the tool and move it down a few inches, retighten
OK! Once it starts to drop, you can just push the rest of the tire into the rim drop
lube the tire at the rim area
now for that knee pad usage
press down and get the sidewall into the drop, brake rotor is protected by the wheel pad
first bit with iron
while holding first iron, take second bite, use knees(both) to keep tire in wheel drop!
now the tire will come over the rim easy. No fighting now
side wall of tire is outside of rim now
push valve stem thru
pull inner tube out
tube out...now for the best trick from the Bridgestone guy!
plug the air pump from your KLR’s auxiliary SAE outlet
fill with air till it takes a firm shape
drape over finger too much air
just right, finger should be positioned ½ up the tube...No need to remove the valve stem core on the replaced tire!
ready for install...note you can add powder to the tube at this position, make sure blue band of tire faces up
start at valve stem. see blue band.
push in with fingers...goes in easy when partial filled with air
valve stem aligned with rim hole
BIG tip here: goto opposite side of wheel here where valve stem hole is shown. Lift side wall with tire iron
like so...Just guide the valve stem in hole...It is that easy! The tire iron does and the partially filled tire does all the work. No more busted knuckles! Just like in the video! It works!
thread nut on stem abit
picture shows the drop of the rim
lift side wall and check that you can see the blue band all the way around the tire
spray some windex
small bites with tire irons here
use a bead holder to help...like having another pair of hands
work around the tire
1/3 of tire on
2/3 of tire on
relube for the last bit
one last pull....note my knees are pushing the sidewall into the rim drop (from the opposite end and sides)
add air...check for leaks, pinched tubes......no issues with this install
tire pump consumes~ 7 amps ~85 watts
tools put away
My lessons learned
1. Worth it to me to buy a practice wheel
2. Right tools help.
3. Video on web layed the technique path
4. Use windex as a lube fill a small 6 oz spray container
5. Fill the tube with some air..no need to “fish” the stem
6. Make a pad to protect your wheels rotor
7. Use lots of lube
8. Check the tire blue markings to make sure no binings.
9. I have practiced 4x times now and feel proficient in a trail/road fix