Quote:
Originally Posted by Jhill
This is only an issue as you said if assembled incorrectly. Every single multi piston motorcycle or bike caliper I can think of uses and internal crossover tube. The only reason cars use an external one is bacuse the left and right caliper are the same and the crossover tube takes the place of bleeder screws so they can save on manufacturing costs.
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Most motorcycle calipers are monoblocks nowadays too, so they are not rebuild-able by design. Using external crossover tubes doesn't make the manufacturing cost any cheaper. If anything it's more because its 3 additional parts per caliper assembly.
Brembo and Stoptech crossover tubes range from 15-25 dollars each. An internal design is built into the caliper and has no additional cost, other than additional machining time. But these are cast calipers so the machining time is already reduced.