Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - DaveB

Pages: 1 ... 69 70 [71] 72 73 ... 95
1051
Gear Talk / Changing from Drop bars to Straight bars
« on: December 20, 2007, 08:32:26 am »
Another vote for don't do it.  Straight bars have one hand position and poor aerodynamics.  Drop bars, even if you don't use the drops, have at least three places for your hands.

Straight bars with bar ends do have one more hand position but at the cost of greater weight and remoteness from both brake levers and shifters.


1052
Gear Talk / Rollers and trainers
« on: December 02, 2007, 01:38:46 pm »
Rollers are a bit tricky to learn to use and most models don't provide any serious pedaling resistance. Some do by using small diameter rollers and/or by adding a resistance fan but they are in the minority.  Rollers require your constant attention while using them and a wandering mind can launch you right into the nearest wall. They do improve or maintain your bike handling skills.    

Stationary resistance trainers that mount your bike on them and use a fan (effective but noisy), magnetic resistance (quiet but too linear) or a fluid resistance unit (quiet and realistically non-linear) to provide a work load are generally more effective at providing a workout but do nothing to improve riding skills.  The upside is you can watch TV, movies, etc. while using them which helps compensate for the incredible boredom they produce. ;)

I have a Performance house brand (Travel Trak) fluid trainer I use when the weather is too nasty to ride outside.  About all I can say in defense of any of them is that it's better than doing nothing.  


1053
Gear Talk / rain gear
« on: November 23, 2007, 11:51:14 am »
A cape works for falling rain but does little or nothing to protect you from the road splash thrown up by your wheels.  Fenders on your bike are almost essential if you use a rain cape.  


1054
Gear Talk / rain gear
« on: November 20, 2007, 09:11:08 am »
Paul,

You will hear this comment quite a lot over the next several weeks. I believe it's actually been set to music. ;)

Dave


1055
Gear Talk / rain gear
« on: November 18, 2007, 02:12:52 pm »
There is a Communist guy from Moscow that's an expert on this topic and you might want to consult him.  I'm sure you're aware that:

Rudolph, the Red, knows rain gear.


1056
Gear Talk / Touring Pedals
« on: November 18, 2007, 07:37:14 pm »
Carrying replacements for weird pedal systems
is a personal decision. That's how I ended up back at SPDs after trying
Frogs and Bebops and some Cranks. You can get SPD parts anywhere.

That's a good point.  SPD's are certainly the most widely supported and common pedal system.  Speedplay pedals and cleats are also widely available and Crank Bros. are getting there.  Bebop has had it's problems and is all but gone from the market.


1057
Gear Talk / Touring Pedals
« on: November 18, 2007, 02:09:12 pm »
First, I started riding over 20 years ago when platform or toe clip/strap pedals were the only choices so I'm not unfamiliar with them having ridden thousands of miles using clips and straps.

Now I know better and disagree that clipless pedals are of little benefit to casual riders unless you are VERY casual.  If you only ride in flat areas, their benefits may not be as obvious but in the hills they are almost essential.  The LBS certainly didn't "bully" me into using them, experience did and I'd never go back.

I wonder if your SPD's are adjusted properly.  I ride in both Speedplay Frogs (super easy exit and a lot of float) and Shimano SPD double sided pedals and find the SPD's very easy to enter and exit, even compared to the Speedplays.  SPD's have a tension adjustment and perhaps yours need to be loosened.

As to "touring" pedals, I think Peterson is referring to quill pedals that accept toe clips and straps.  Many "sneaker" platform pedals are not set up to fit  toe clips and straps.



 


1058
Gear Talk / quick release vrs bolt on hub
« on: November 10, 2007, 11:20:02 am »
Are you talking handlebar stem, as in the thingy that lets you steer the bike, as in the thingy that supports 30% of your weight? Geese! Scary.  

Yes, that's what broke.  And yes, it certainly was scary.

I called Profile (it was one of their stems) after the incident and they sent me a new, stronger model right away at no cost.  I think they were grateful I wasn't hurt and wasn't threatening to sue.  


1059
Gear Talk / quick release vrs bolt on hub
« on: November 06, 2007, 11:02:26 am »
I once had a stem break. Now THAT was exciting.

Me too and it was all the excitement I wanted for quite a while.  I had just come down a winding 35 mph hill, stopped at a red light about a mile later and the stem broke just as I was leaving the traffic light so the resulting spill was at very low speed. I still think about what would have happened if it had broken 5 minutes earlier.


1060
Gear Talk / quick release vrs bolt on hub
« on: November 04, 2007, 09:05:59 pm »
Properly designed and installed qr skewers (internal cam types like Shimano and Campy make) are actually more secure than nutted axles.  The cam goes "over center" as the flag is fully closed and actually gets tighter as you first begin to open it so it is almost impossible to loosen by itself. Nuts can and do vibrate loose.    

Avoid the external cam boutique light weights as they don't generate the clamping force that an internal cam will and are more fragile.

I too have never heard of a Shimano or Campy qr ever breaking.
 


1061
Gear Talk / New Fork
« on: October 23, 2007, 09:07:35 pm »
I put a Winwood carbon cyclcross fork on my T2000 Cannondale and it made a world of difference in handling and comfort.....

I don't doubt it made a difference in the bike's handeling as the rake and length may have been different from the stock fork but I still doubt the "comfort" difference.  No rigid fork of any kind can have significant complience and "shock absorbtion" or the bike's steering would be significantly compromised.


1062
Gear Talk / New Fork
« on: October 23, 2007, 09:39:56 am »
I have bikes with steel forks, aluminumm forks and both relatively heavy and extremely light all-carbon forks and I really can't feel a significant comfort difference among any of them.

I think the concept that carbon forks are more comfortable is more marketing than fact.  A carbon fork can be a lot lighter than a steel fork but that's its real advantage.


1063
Gear Talk / Touring Forks
« on: October 21, 2007, 11:04:19 am »
Contact Trek and see if they can provide a direct replacement fork.  You are correct that finding a 1" threaded touring fork with cantilever brake and rack mounts is very difficult.  

One other thing; if you were in an accident that was severe enough to damage the fork, have the frame's headtube and downtube checked for damage also.


1064
Gear Talk / Drive train/gearing changes
« on: October 20, 2007, 09:51:59 am »
A bicycle is a machine of torque amplification, not horse power

Actually that isn't correct.  A bicycle is a distance amplification machine at the expense of torque. The bike travels further than your feet do even in very low gears.

Even if the chain broke first it would continue to follow through the stroke until it reached it's last link as a single unit.

That's not true either.  A popped pin or bent side plate could easily get jammed into the adjacent cogs and do all kinds of damage as it passed through the cassette.  I've seen rear derailleurs destroyed when a broken chain was pulled through them so a broken chain is not smooth and snag-free.  


1065
Gear Talk / Drive train/gearing changes
« on: October 18, 2007, 08:44:28 pm »
I stood to pedal and the 34T bent and the chain broke.
OK, but I wonder about the sequence of events.  You believe the cog bent and then the chain broke.  I wonder if the chain broke and that bent the cog.

The cog, either Shimano or SRAM. should be plenty strong enough to take the load you describe.  The limiting factor would be rear tire grip, not cog strength.  The rear wheel should slip before you should be able to bend a cog. I expect the chain broke and that caused the resulting damage.

This message was edited by DaveB on 10-18-07 @ 4:44 PM

Pages: 1 ... 69 70 [71] 72 73 ... 95