|Kool Stop brake pads replacing Campy....||DINOSAUR|
Apr 16, 2003 11:13 AM
|My Campy 2K Chorus brake pads will need replacing in the next couple hundred miles. Checking prices, Campy pads are about $15.00 a pair and the Kool Stop (black) run around $10.00. Do the Kool Stop measure up to the Campy pads and are they as durable?|
|re: Kool Stop brake pads replacing Campy....||russw19|
Apr 16, 2003 11:31 AM
|I've used Kool Stop pads on my mountain bike and they are fine. I use Aztec pads (which are about the same darn thing) on my road bike. They are cheaper and they work just as well. Kool Stop is a brake pad company... that's about all they make, so you should figure they know what they are doing. They also make different compounds so you can get extra grip or long term durability out of their pads. I personally like the soft compound brake pads, but I work in a shop and pay about $10 for a set of front and rear, so I don't mind replacing them 3 or 4 times a year. They stop better.
|re: Kool Stop brake pads replacing Campy....||PdxMark|
Apr 16, 2003 2:19 PM
|There are different Campy brake pads for pre- and post-2000 Campy groups. I don't know for certain whether the difference relates to the shape of the shoe that the pads slide into, but I had a very hard time cramming pre-2000 pads into post-2000 shoes. For whatever Kool Stop pads you get, you might want to confirm whether they are for the era of your Campy brake shoes.|
|already replacing brake pads?||DougSloan|
Apr 16, 2003 2:47 PM
|Dino, I think you are braking far too much. I've gotten well over 10k miles on a set and they aren't even half worn. But, that's another thing.
I have the Zipp pads on one bike (for carbon rims), which are made by Kool Stop, but at 3 times the cost, and they work great on aluminum, too. Not sure if they are the same as other Kool Stops, though. They are supposed to save some wear on the rims, which are worth far more than the brake pads.
|already replacing brake pads?||DINOSAUR|
Apr 16, 2003 3:06 PM
|I have about 6K on the Campy pads, guess they are about halfway shot. They might make it to 10K, but better safe than sorry...|
|Doug doesn't believe in slowing down! ;-0||russw19|
Apr 16, 2003 4:23 PM
|Can't stop, won't stop! Can't stop, won't stop!
|to descend fast, "don't brake lots." nm||DougSloan|
Apr 16, 2003 7:50 PM
Apr 16, 2003 5:21 PM
|You must live in very hilly country or not be willing to coast to slow down. It's flat around here, and I've been known to blow the odd stop sign, but I've NEVER worn out a set of Campy pads, even after 90K miles on one bike!|
Apr 16, 2003 6:03 PM
|Yes, it is very hilly where I live. This is my first experience with the new era Campy stuff. I think the original question was if the Kool Stop pads match up to the Campy pads, not how many miles I can get out of a set of pads..but thank you for your expert advice....|
Apr 16, 2003 7:14 PM
|It's flat where I live too, but I ride in traffic a lot, so I like the soft compound pads. In the battle of physics, me and my bike always lose the battle between a redneck and his truck, so I like to have good solid stopping power.
|sorry, misread as "2k miles" on the pads... never mind nm||DougSloan|
Apr 16, 2003 7:49 PM
|I did not mean 2K on the pads...||DINOSAUR|
Apr 16, 2003 6:22 PM
|2K meant the model number, they have two different sets of Campy pads-before 2000 and after 2000. That's how they are listed in the catalog I was looking at when I was looking for ways to spend money (cheap)..|
|re: Kool Stop definately||mhinman|
Apr 17, 2003 5:40 AM
|Kool Stop pads are quieter than Campy do to the softer compound (I have 02 Record) and also don't seem to pick up metal shavings and other grit as easily as Campy pads, so you will get less grinding than with the Campy pads. As for durability it is hard to say, but I have good durability on my MTB from Kool-stops, Also I would rather replace my pads more often than my wheels, due to the grinding of the metal shaving that the Campy pads seem to pickup.|
|fyi from Zipp||DougSloan|
Apr 17, 2003 6:21 AM
|ATMS-Advanced Thermal Management System
Attn: ZIPP highly recommends the use of ZIPP Carbon/Carbon brake pads for all ZIPP rims and wheelsets. ZIPP Carbon/Carbon pads are engineered for optimal performance and rim longevity under all (including extreme) conditions with both Silica-Ceramic and Aluminum braking surfaces. ZIPP Carbon/Carbon pads are also recommended for use with non-ZIPP products. ZIPP Carbon/Carbon pad will increase the performance and longevity of any high performance wheel.
Other recommended pads are Shimano or Campagnolo pads designed for use with carbon rims, and KoolStop Black pads.
Over the last few seasons, commonly available brake pads have changed in composition as a response to newer rim and materials technology. Gone are the days when you could put any wheel on any bike with any brake block and expect great performance. Today's stock factory equipment pads often incorporate abrasive substances, harder rubber compounds, other means of achieving better performance or all three. Paired with both the highest technology aluminum or modern carbon rims, these more abrasive, harder pads often contribute to faster rim wear and decreased performance under extreme conditions.
As cycling components grow increasingly lighter issues beyond strength, stiffness, and reliability become increasingly important. One critical issue with rims is their capacity for and their management of heat input as the rim is also used as a heat sink to dissipate energy from the act of braking. Every object has a heat capacity that is an amount of temperature increase per unit mass per unit energy input. The most basic example is water: one calorie will heat one gram of water exactly one degree Celsius. Therefore one calorie will heat two grams of water one half of a degree Celsius and so on. Carbon composites have thermal capacity similar to aluminum, although their ability to transfer heat is much more limited. However, we are building carbon rims at roughly half the weight of competing aluminum rims, so we are faced with the challenge of what to do with the heat energy. In theory, a Zipp 280 rim, because of its extreme loss in mass, will achieve roughly twice the temperature as an industry standard 30mm deep aluminum rim weighing twice as much. Furthermore, we have taken every measure possible to conduct heat down the rim sidewall and not into the tire bed where it may soften tire cement or potentially cause other problems, somewhat further reducing the rim thermal capacity.
Since we are limited by basic physics in regards to thermal capacity of the rim, we had to look beyond ourselves for further solutions. After some 14 months of research and development in cooperation with Kool Stop, BP-Amoco, SGL-Hitco and numerous others, we have developed the world's first thermally conductive, low temperature brake pad. Many have formulated pads with cork for carbon rims, but this only serves to lower brake temperatures through low coefficient of friction, and therefore poor braking performance and feel. With input from SGL-Hitco, manufacturer of the over 90% of the carbon-carbon brake discs used in Formula 1 auto racing, we have developed a compound utilizing a matrix of high thermal conductivity PITCH based graphite fibers, high cross-linking carbon molecules, and ultra-high performance Mesophase Pitch Graphite. Previously reserved only for aerospace and satellite usage, these materials exhibit heat transfer properties roughly 2-3 times that of copper and at less than one-fifth the weight. However, with prices nearing $800 US per pound, the weight savings and performance advantages must truly be maximized to justify their use. We carefully formulate these materials which are then blended with a base resin and molded using the advanced shape tooling from the world's 'Rim Friendliest'TM brake pad manufacturer: Kool Stop in Lake Oswego, Oregon.
We are confident that you will find the Zipp Carbon/Carbon pad to be the highest performance bicycle brake pad in the world, whether used on carbon or aluminum rims. The Zipp pad also adds a further dimension of safety to your riding as it is one of only a handful of pads not containing abrasives, it minimizes the possibility for heat-flatting under extreme conditions with aluminum rims, as well as prolongs the life of aluminum rim brake tracks.
|ps: these really do work better than Campy pads||DougSloan|
Apr 17, 2003 6:24 AM
|I put these on my EV2, and with either carbon or aluminum rims, extreme braking is much improved. The Campy pads would tend to get hot and grabby in really steep, twisty, descents with lots of braking. In fact, I've smoked them before (could actually see smoke coming off).
The Zipp pads are pretty hard to install, and I have no idea yet of their durability, but extreme braking is definitely better.
|ps: these really do work better than Campy pads||DINOSAUR|
Apr 17, 2003 6:58 AM
|Thanks, I'll try the Kool Stop.....|| |