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Shimano & Campagnolo Road Brake efficiency
"Ronko" wrote in message ... I have this weird question. I have one road bike (steel) with a 2000 Campy 10sp Alloy Chorus shifters and matching double-pivot Chorus brakes (pre Skeleton). I have another similiar geometry road bike (aluminum, carbon stays) with Shimano DA7700 shifters and Ultegra 6600 brakes. The Shimano bike stops better, it has more stopping power and it feels snappier. Curious, I switched the front brakes. With the Campy Chorus 10sp shifters (alloy group) the Ultegra brake isn't the same snappy, quick stopping self. The Chorus brake on the Shimana DA7700 shifter bike feels better than on the Campy bike, it is snappier and stops better. In terms of modulation both combinations work well and are controllable and do not go from no braking to instant braking. Various local bike shops & mechanics have various opinions some of which a Campy brakes are generally not as good as Shimano which I have found in my specific case not to be true. Campy brakes are better than Shimano in that they modulate better and are equal in stopping power. No one believes Campy brakes stop better than Shimano. Personally because of the general quality of Campy equipment I am inclined to believe both Shimano and Campy are equal in stopping power. The Shimano STI shifter does bend out naturally from the housing, the Campy Ergo levers are parallel with their housing. Perhaps the Shimano just fits my hand better? I don't believe its the stiffness of the metal or anything like that because Campy makes very good stuff. Both bikes have good cable sets, properly routed and lubricated. Also a 3rd bike with DT shifters has old 105 brake levers and another 6600 set of brakes, this bike stops very precisely and well, certainly better than the all Campy Chorus alloy group bike. Has Campy changed the design of their Shifters with newer models? Comments? Ideas? Similiar Experiences? What does "snappier" mean? What does "stops better" mean? How did you assess "stopping power"? BobT |
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Shimano & Campagnolo Road Brake efficiency
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Shimano & Campagnolo Road Brake efficiency
On Nov 21, 1:20*pm, Ronko defined:
Stops better: For an equal amount of force the stopping distance is shorter, my definition of better. Additionally the meaning of "better" in this instance is a shorter stopping distance regardeless of force applied. I'm not much of a fan of either of those, at least in the general sense. Definition #1 seems to call for maximum mechanical advantage in the braking system. But I think there is such a thing as too much mechanical advantage. I think a person should have to squeeze fairly hard in order to stop very quickly. I remember my dad's 1959 Pontiac with hair-trigger power brakes. Anything but the lightest foot pressure could cause a skid. Similarly, I recall a novice bike rider trying to stop quickly using just-introduced Shimano dual pivots, and going over the bars. She said immediately afterward, "I just squeezed the levers as hard as I could." And that's all besides the secondary disadvantage of high mechanical advantage, which is less brake shoe travel thus more sensitivity to wheels being out of true. Regarding #2: Stopping distance is largely separate. A brake that requires a harder lever squeeze can stop you just as short as a brake that requires less lever force. - Frank Krygowski |
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