Showing posts with label sheldon brown. Show all posts
Showing posts with label sheldon brown. Show all posts

Thursday, January 22, 2009

When to Use Rear Brake

Skilled cyclists use the front brake alone probably 95% of the time, but there are instances when the rear brake is preferred:
  • Slippery surfaces. On good, dry pavement, it is generally impossible to skid the front wheel by braking. On slippery surfaces, however it is possible to do so. It is nearly impossible to recover from a front wheel skid, so if there is a high risk of skidding, you're better off controlling your speed with the rear brake.

  • Bumpy surfaces. On rough surfaces, your wheels may actually bounce up into the air. If there is a chance of this, don't use the front brake. If you apply the front brake while the wheel is airborne, it will stop, and coming down on a stopped front wheel is a Very Bad Thing.

  • Front flat. If you have tire blowout or a sudden flat on the front wheel, you should use the rear brake alone to bring yourself to a safe stop. Braking a wheel that has a deflated tire can cause the tire to come off the rim, and is likely to cause a crash.

  • Broken cable...or other failure of the front brake.

  • Long mountain descents, when your front brake hand may get tired, or you may be at risk of overheating a rim and blowing a tire. For this situation, it is best to alternate between the front and rear brake, but not to use them both at once.
Source: Harris Cyclery / Sheldon Brown / photo from bikeradar

Tuesday, January 20, 2009

Fenders For Your Bike

If you are a "fair weather" cyclist, you don't need fenders, but if you are a serious cyclist, and don't live in a desert climate, you really should have at least one bicycle with fenders.

Fenders by themselves won't keep you dry in a pounding rain, but they make a tremendous difference when you are riding roads that are wet from drizzle, recent rain, or snow-melt.

Even in hard rain, you will become wet with clean rain from above, but your body and bicycle will be protected from the mud and sand kicked up from dirty puddles and rivulets. Rain capes.*****

Many cyclists protect themselves from rain by wearing rubber clothing, but they forget that their bicycles don't like dirty water any better than their bodies do.

The water kicked up by your wheels is much worse for your bicycle than the clean rain falling from the sky. If you ride in wet conditions without fenders your chain, derailers and brakes will all get sprayed with sandy, muddy, scummy water, often mixed with gasolene residue. This is very bad for these parts.

Even more vulnerable is the lower section of your headset. Headsets are designed to shed water like the shingles of a roof, and are basically rainproof...but the gritty spray from below has easy entry to the bearing surfaces of the heavily-loaded lower races.

Source : Harris Cyclery/ Sheldon Brown/ photo from rei.com

Tuesday, April 1, 2008

Sheldon Brown: RIP

Sheldon Brown: 1944 - 2008

Visit his website (click here)

Source : harris cyclery - visit their website for 'hard to get' parts & accessories.

Established in December 2006