20 Most Recent Blackburn Mountain Air Mountain Bike Pump 4 Bicycle Questions & Answers

3in1 oil, or small air tool oil. plz rate, bozcro

They should be designed to fit both styles of valve, but you need to reverse the seal.
you should be able to unscrew the end, remove the sealing rubber and a plastic fitting that pushes on the valve, replace them the opposite way around ,and they will fit the presta.

http://www.blackburndesign.com/manuals/Mammoth_Airstik_MAP.pdf

http://www.blackburndesign.com/manuals/Mammoth_Airstik_MAP.pdf

See the last page

Several scenariosto consider here. First of all the compatibility with the hub. Second is the deraileur tarvel and the actual shifter. Components are normally matched in sets from factory and do not transfer over unless the entire set, shifter, deraileur and sprocket. Then there is the issue of chain wear fitting the crank and new hub together. Chains and gears seat into each other as they wear so a crank set should stay with the original hub as well, even if you were to install a new chain the wear pattern would be different.
So the short answer is unless the brands all match and are in new condition and the hubs are the same thread and diameter, you will not get good results

When you remove the tires while changing inner tubes, do you run your fingers through the inside of the tires to check for thorns, wire, nails or other debris before replacing the tubes? Also, check to make sure your rim strips are adequately covering the spoke nipple holes in the rim. Sometimes just a little bit of a hole left unprotected can damage a tube. Lastly, sometimes you will just get bad tubes. It happens.

Dear Doug, to lock a hand pump onto the valve stem: 1.depending on valve type-loosen the valve lock for presta, twist off valve cap for schrader. 2.unlock the pumping handle from the pump so that you can actually "pump" the pump... 3. put the pump head on the valve of the tire, then pull up on the thumb tightening lever. This should squeeze toghether the internal rubber gasket of the pump, and lock on to your valve. 4. Begin pumping. 5. when desired pressure has been reached, push down on the thumb lever to unlock the pump. Remove it. Good Luck Fellow bicyclist!

A tool that is like a socket goes in the center of the gears. And keeps the sprocket from spinning
And a special wrench slides over the out side gears grips gears.

Then centrifugally forced the sprocket will unscrew clockwise.
You sort of need those tools.
Or if you are good with tools. One can be made.

I'm not sure if that is what you want to do.

But yes, the sprocket is screwed on like a nut.

Hope this helps

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Here is the detailed link. Watch it and reset your Blackburn.

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