Hot answers tagged carbon
7
At the shop we generally use a "normal" hacksaw blade. I'd go with finer blade (more teeth per inch) if there's an option. Go slow and smooth (long low pressure strokes) and keep the blade perpendicular to the bars. The tape will probably help but do take care removing the tape or you might cause the fray you're trying to avoid.
There are special carbon ...
7
If it were a steel frame and fork there would be no question -- steel lasts nearly forever, even when moderately rusty, and can take all sorts of abuse.
Aluminum is a bit less robust, but if it only has "a few thousand" miles on it (and not 30,000) and has not been abused (or hit by a car) then it should be good. The problem with aluminum is that it can ...
6
General rule of thumb, a stiffer frame will absorb less of the input energy and transfer more energy - hence more power from you legs means more power to the wheel.
But....
The bikes have different designs, so the aerodynamics of the bikes and the rider on them will be different which will result in different speeds.
And then...
A stiff frame will ...
5
Do you know the history of the bicycle (crashed, etc)?
While bicycle geometry\components\preferences have changed over the last 12 years, the life span of well cared for aluminum frame and carbon fork are much longer.
Clean the frame and fork and give it a thorough examination. Look for:
Major dents in the frame that may compromise the integrity (minor ...
5
That is unlikely. The inside of a frame is machined/molded to a specific size for the seat post. An integrated post is not finished internally. Also, it is unlikely that the internal and external diameters of the post/frame/clamp would match well enough to be ridden safely.
Seat post fitting is a zero tolerance game, and they are dimension-ed to the tenth ...
3
The Park Tool BBB-2 lists the recommended torque for side/dual/center pull Shimano brakes as a range from 7.84-9.8 Nm. I see no specific mention for carbon frames/forks. Bicycle tutor has a similar table here: http://bicycletutor.com/torque-specifications/
3
I just found this from a carbon fiber leaf spring manufacturer...
In comparison with steel leaf springs they have significantly greater
spring action, higher internal damping and a more balanced springing
behaviour, with a many times greater retention capacity of elastic
energy than spring steel.
...
2
The Mosso web site doesn't give a full description. Looking at the photo it appears to be a carbon fork with an aluminum steerer tube. This is not an unusual combination. Many road bikes are offered with this setup. I can't say anything about the quality for the price perspective. I did recently purchase a factory Specialized fork that had a carbon fork and ...
2
I'd say the rider is the damper, since that few milimeters of travel can easily be "swallowed" by rider's action/body after he got used to it.
(I ride very rough streets with an old steel road bike, and for sure, based on what rough streets feel like to me while on the bike, I would love to ride a bike behaving as the one shown in this video.)
2
I'd be willing to bet that whatever characteristics Trek gave that frame, those are exactly the characteristics that Trek wanted the bike to have. That man appears to be flexing the frame as hard as he can to get it to bounce. A video of a guy on a trainer isn't going to reveal much of anything useful in the real world. If you want to know how the bike does, ...
1
I've had better luck with the purpose made tungsten carbide blades. The teeth on a normal hacksaw blade tend to fray the carbon fibers more easily, especially with a low tooth count blade. The carbide blades are less apt to cause fraying, but you still have to be mindful as you cut. Let the blade do the work for you- don't bare down on the saw as you make ...
1
The stiffer a frame is, the more it resists flexing under load.
For the sake of demonstration, say you have a carbon frame that under a load of 400 watts of pedaling power has 2" of flexion. The actual power going to the wheels is 400 - Cost to flex.
Now you take a frame that only flexes 1". Less of your power goes into flexing the frame, so more power ...
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