Thread: v-brakes
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Old February 25th 18, 12:01 PM posted to rec.bicycles.tech
John B.[_3_]
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Posts: 5,697
Default v-brakes

On Sun, 25 Feb 2018 00:07:01 +0100, Emanuel Berg
wrote:

Here are a couple of pics to facilitate the
discussion:

http://user.it.uu.se/~embe8573/bike/brake/

I've heard that

1) the long spring pin should be in the
middle boss hole

2) the pads/shoes/blocks should be slightly
pointing inward on the rim on the front
end

3) the arms should be vertical

4) between the cable anchor bolt/cable
clamp and the noodle/guide should be
39mm of cable

Is there a trick/algorithm to achieve all this?
I have put together several but 1, 2, 3 don't
come automatically for me


The three little holes at the hub are to adjust the brake arms. Try to
get the brake arms parallel. The small bolts are for fine tuning the
adjustment. Start with them screwed in about half way. (Or out about
half way, if you prefer

The pads should be installed so that the face is parallel to the wheel
rim and if possible with the leading edge "toed in", the front end
slightly closer to the rim then the rear.

Adjust the cable length to give you the brake lever movement that you
are comfortable with and then use the small hub screws to center the
brake pads on the rim.

Finally, ride the bike down a steep hill 30 kph and grab the back
brake. If the rear wheel skids the brakes are working. Congratulations
:-)

You could also try to skid the front wheel but that is a little "iffy"
so I won't recommend that as a test :-)
--
Cheers,

John B.

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