Judy XC's and V-brakes

JustKev · Jul 29, 2007

A really common set up but one that I cannot get right!

I have today tried two sets of V-brakes (LX and XTR's) on my Judy XC's. I cannot get any significant spring tension in the brakes - they're just 'soft'.

My forks only have one central spring hole - not three like some otehr forks.

Any ideas? I have tried tightening both grubs screws on the brakes fully in - no difference, I tried bending the springs out a little - again no difference....

Elev12k · Jul 29, 2007

Sorry Kev, instead of the Quote icon I clicked the Edit icon. Please add again the details I deleted.

Below what I intended to do.

Elev12k · Jul 29, 2007

MadCowKev":2gkroxti said:
A really common set up but one that I cannot get right!

I have today tried two sets of V-brakes (LX and XTR's) on my Judy XC's. I cannot get any significant spring tension in the brakes - they're just 'soft'.

My forks only have one central spring hole - not three like some otehr forks.

Any ideas? I have tried tightening both grubs screws on the brakes fully in - no difference, I tried bending the springs out a little - again no difference....

Bending them a little bit more??

The same setup works fine on my Yo. Don't know why, but it works.

I am thinking: Aren't your rims wider? Maybe replace the longer cylindric bits on the inside with the shorter on the outside vice versa

JustKev · Jul 29, 2007

thanks Melvin

rims are 231's.

Will try bending them more......I already tried putting all the brake block spacers/adjusters on the 'inside'

Elev12k · Jul 29, 2007

My Yo has 238. I don't know the difference. Seems you're stuck with a brakeless bicycle

Makes you go faster.

Or?

gump · Jul 29, 2007

I run some narrow mavs with XTR vs, and they pull in a LONG way to the rim on Judys.

Just bend the spring a bit by hand, its how I always adjust them

messiah · Jul 30, 2007

The rear brake bosses on my Lloyd are much further apart than the front ones - I ended up putting an additional flat spacer between the brake shoes and the V-brake arm.

Worked a treat.

cce · Jul 30, 2007

seems to be too many combinations that dont work - i try and avoid paralell push V's now

LX paralell push + project 2 + mavic F519 = no worky

JustKev · Jul 31, 2007

Bent the springs out (much further than before - only LX though) and now the brakes work.

Thanks Guys!

REKIBorter · Aug 1, 2007

Had a similar experience recently ...

Fitting a shim tune-up kit to a set of M739 V-brakes. Three of the cantis went well until the last one, fitted enough shims until all play removed and tightened up the axle bolt, ended up with a stiff parallel arm which caused the brake to refuse to return under spring pressure alone. Took out the smallest shim which left a small amount of play tightened it all up and hey presto! works perfect.

Judy XC's and V-brakes

JustKev

Elev12k

Elev12k

JustKev

Elev12k

gump

messiah

Senior Retro Guru

cce

JustKev

REKIBorter

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