06-19-2011, 05:21 PM
I think you're opening yourself to a world of hurt and annoyance wanting to use a brake type that is not designed for that bike. Why are you doing this How about just buying some brakes with the long non-recessed bolts that work with your bike as is. They are still available: http://www.sheldonbrown.com/harris/brake-calipers.html . For mounting fenders you don't want the recessed bolts anyway. Going with so-called "modern" brakes (i.e. those with recessed bolts and otherwise no different from "non-modern" brakes) is going to cause you a whole slew of problems.
1. They are generally short reach and won't be able to adjust far enough so that the pads reach the rims. This is especially true if you're using an old inexpensive bike frame (I seem to recall that you were going to buy a Raleigh Grand Prix) and even more especially true if you're going to use 700C wheels on it.
2. You need to drill your fork crown and have to obtain a second front brake to fit on the back.
3. They won't work with fenders without buying expensive "Sheldon nuts", while the non-recessed bolt brakes will work just fine..
One more note...if you are referring to dual-pivot brakes as "modern brakes", note that they have a different mechanical advantage than standard centerpulls or sidepulls. This means that you will need to use a different set of brake levers with the mechanical advantage specifically matched to the dual-pivots.
1. They are generally short reach and won't be able to adjust far enough so that the pads reach the rims. This is especially true if you're using an old inexpensive bike frame (I seem to recall that you were going to buy a Raleigh Grand Prix) and even more especially true if you're going to use 700C wheels on it.
2. You need to drill your fork crown and have to obtain a second front brake to fit on the back.
3. They won't work with fenders without buying expensive "Sheldon nuts", while the non-recessed bolt brakes will work just fine..
One more note...if you are referring to dual-pivot brakes as "modern brakes", note that they have a different mechanical advantage than standard centerpulls or sidepulls. This means that you will need to use a different set of brake levers with the mechanical advantage specifically matched to the dual-pivots.