Guinessisgoodforyou
rBotM Winner
Superior in every way compared to cup and cone.
Retro-modern fusion gravel build madness. The new Superb!
- Thread starter M_Chavez
- Start date
On the topic of brakes.
I see that mini-vs come in different lengths.
Has anyone tried TRP CX-9? I read they need to be set up about 1mm from the rim (ouch!).
These have the longest arms (95mm), so should clear my guards, but are approaching regular v-brake lengths, so I'm a bit concerned.
Next down are Tektro RX-6 with 90mm arms. My boss-to top of the guards distance is exactly 90mm, so might still be an option.
Tempted to go for the bling of CX-9, but will need to wait until payday.
I see that mini-vs come in different lengths.
Has anyone tried TRP CX-9? I read they need to be set up about 1mm from the rim (ouch!).
These have the longest arms (95mm), so should clear my guards, but are approaching regular v-brake lengths, so I'm a bit concerned.
Next down are Tektro RX-6 with 90mm arms. My boss-to top of the guards distance is exactly 90mm, so might still be an option.
Tempted to go for the bling of CX-9, but will need to wait until payday.
Guinessisgoodforyou
rBotM Winner
Fantastic brakes, scary power.
I'll wear brown shorts
What about rim clearance? Hand-built wheels are pretty good at staying true, but even they need occasional truing after bumping into things.
Thinking out loud here.
My V-brakes test showed that pads have to be at the lowest possible adjustment to clear the tyre and land on the rim. Therefore, mini-vs will produce an extremely high mechanical advantage. Won't work, as pads will have minimal travel (btw there' peanuts-priced Tektro 930Al with the same arm length that I can try).
Original brakes were, indeed, mafacs and they are wide-profile calipers. Makes sense - low mechanical advantage mafacs were compensating the close location of bosses to the rim.
So I therefore need low-profile or medium-profile cantis. Narrow-profile Oryx won't work.
Will have a look for wide-profile calipers on ebay.
My V-brakes test showed that pads have to be at the lowest possible adjustment to clear the tyre and land on the rim. Therefore, mini-vs will produce an extremely high mechanical advantage. Won't work, as pads will have minimal travel (btw there' peanuts-priced Tektro 930Al with the same arm length that I can try).
Original brakes were, indeed, mafacs and they are wide-profile calipers. Makes sense - low mechanical advantage mafacs were compensating the close location of bosses to the rim.
So I therefore need low-profile or medium-profile cantis. Narrow-profile Oryx won't work.
Will have a look for wide-profile calipers on ebay.
grantoury
Kona Fan
I think that eighties cantilevers may do the job?
torqueless
Senior Retro Guru
@Woz
The fixie crew may have ground off some braze-ons, but they don't usually tug old chainstays out to 130mm. Nobody seems to complain about that here.. this is double-standards.
The fixie crew may have ground off some braze-ons, but they don't usually tug old chainstays out to 130mm. Nobody seems to complain about that here.. this is double-standards.
I don't believe anything is superior in every way. Virtues are always accompanied by vices.
@torqueless
Is there anyone stopping somebody in 2122 who is restoring 1950s mass-produced bikes from bumping the stays back to 116mm?
Is there anyone stopping somebody in 2122 who is restoring 1950s mass-produced bikes from bumping the stays back to 116mm?
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They would be medium profile I think.
Ideally will need to test wide & med profile calipers if I can get my hands on a few sets cheap. Can try vintage mafacs or there's a modern offering from dia-compe.
Had a look online, but the prices on used stuff on ebay will make your eyeballs bleed.
Bingo. It is double standards.
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