New U-brakes on (relatively) old Peugeot
12-28-11, 07:15 AM
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New U-brakes on (relatively) old Peugeot
Hi all - struggling with my bike and would appreciate some advice!
I've got a Peugeot racer, one of those 90s ones you see all over the place. I've given it a clean and replaced a few bits including the brakes which were in a terrible state. The problem is that the holes into which you'd put the brake bolts are much narrower than those on modern bikes, which means I can't fit 'off the shelf' brakes onto it. Sure someone on here will have had a similar problem but let me know if I'm not explaining myself very well.
Short of drilling out one side (not much frame there so I'm not sure how strong it would be if I were to do this), is there a work around? Is there a particular type of brake I can look for that will fit?
Thanks - any help would be very welcome.
Luke
I've got a Peugeot racer, one of those 90s ones you see all over the place. I've given it a clean and replaced a few bits including the brakes which were in a terrible state. The problem is that the holes into which you'd put the brake bolts are much narrower than those on modern bikes, which means I can't fit 'off the shelf' brakes onto it. Sure someone on here will have had a similar problem but let me know if I'm not explaining myself very well.
Short of drilling out one side (not much frame there so I'm not sure how strong it would be if I were to do this), is there a work around? Is there a particular type of brake I can look for that will fit?
Thanks - any help would be very welcome.
Luke
12-28-11, 07:43 AM
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Luke, To use a brakeset with an internal nut you will have to drill out the inside mounting hole. This is a fairly common issue and for reassurance cross post to the C&V forum.
Brad
Brad
12-28-11, 07:56 AM
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As Brad noted, to use current brakes with recessed nuts you will have to drill out the rear of the fork crown and the front of the rear brake bridge mounting holes to 8 mm/5/16". Drilling out the rear face of the fork crown is fairly easy but drilling only the front side of the brake bridge is tricky since the settube blocks access. A short drill bit clamped sideways in a Vise-Grip and rotated a fraction of a turn at a time is slow but will do it.
However, you can still find "nutted" brakes that have longer mounting bolts and fasten with an external nut. You might find an NOS set at an LBS and IIRC, Tektro still makes nutted brake sets.
However, you can still find "nutted" brakes that have longer mounting bolts and fasten with an external nut. You might find an NOS set at an LBS and IIRC, Tektro still makes nutted brake sets.
12-28-11, 08:12 AM
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If you decide to drill them, be aware that the recessed nuts come in varying lengths to fit different thicknesses of fork/bridge
https://loosescrews.com/index.cgi?c=B...ecessed%20Nuts
https://loosescrews.com/index.cgi?c=B...ecessed%20Nuts
12-28-11, 10:09 AM
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12-28-11, 10:40 AM
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Disambiguation:
U brakes are a 80's mountain bike feature, then. pivots brazed on the frame.
above the rim, where V brake pivots are below the rim.
U brakes are a 80's mountain bike feature, then. pivots brazed on the frame.
above the rim, where V brake pivots are below the rim.
