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Totally fair question, it mostly boils down to two things:
- Stiffness. This term gets thrown around, but in this instance its correct. the bridge mount for the caliper adds an extra ~30mm to the distance from the pads to the mount, and therefore will decrease stiffness. As the brake arms are at the end of the day, quite thin, increasing their stiffness (and hopefully reducing the posibility of the dreaded howl) is only positive. The bridge will be used for a mudguard, I had the nice machined one left over from a previous project, and to be frank, the old location made for a weird looking gap from tyre to bridge.
- Vibes. Nuff said. (It will be used for mudguards, and possibly even a Brompton esq light mount, not sure yet, the square edges might mess with the organic shape.
See badly annotated attached image. Please ignore the homage to Tom Sachs.
- Stiffness. This term gets thrown around, but in this instance its correct. the bridge mount for the caliper adds an extra ~30mm to the distance from the pads to the mount, and therefore will decrease stiffness. As the brake arms are at the end of the day, quite thin, increasing their stiffness (and hopefully reducing the posibility of the dreaded howl) is only positive. The bridge will be used for a mudguard, I had the nice machined one left over from a previous project, and to be frank, the old location made for a weird looking gap from tyre to bridge.
Ph1ll1p
@midlife
Silly question, why braze on a new rear brake bridge and then ignore it and braze on the centre pull bosses. Is it just for mudguards?