Posts Tagged ‘Bicycle chain’

Admit it, we have all dropped our chain or overshifted to where we had to get off the bike and put it back on properly. Heck, remember Chaingate 2010 @ the Tour de France? It even happens to the pros.

andy schleck chaingate 2010 tour de france

What I haven’t noticed is that I am becoming more adept at riding and shifting the chain back into place without even thinking. If the chain drops by the bottom bracket, I just shift into my 50t, and pedal slowly until it catches. Recently, since I had to fine tune my bike for trainer-specific riding/shifting, I have had several instances of overshifting the chain out toward the pedal. Very embarassing…

One of the other members of spin class was surprised at how easy it was for me to get it back on the chainrings without hopping off the bike.

There are a ton of places and articles that explain what you need to do when these incidents happen, and Coach Levi says it best:

If your chain drops onto the bottom bracket shell:

If you are pedaling along, shift down to the small chainring, and immediately lose all resistance at the pedals, there’s a good chance that the chain dropped off onto the bottom bracket shell.

If this happens, the first thing you should do is relax! You don’t need to panic or screech to a halt, just roll along.

Begin pedaling easily, and gently shift the front derailleur up like you’re going back to the big ring. Typically this is enough to get the chain back onto the small ring and spinning smoothly. (You don’t want to actually shift the whole way back up to the big ring.)

However, if the chain bunches up, you have a bigger problem…

If your chain digs onto the bottom bracket shell (chainsuck):

If your attempts to shift the chain back onto the chainring fail, it’s probably because the chain got jammed into the bottom bracket shell. When this happens, the chain bunches up and completely jams. This is known as chainsuck.

When this happens, you should stop pedaling! You’ll need to slow to a stop, get off the bike, and lift the chain off the bottom bracket shell and onto the chainring. Sometimes you may need to physically pull the chain out, if it is jammed in there tightly.

If you don’t want to get your hands greasy, take a tire lever and use that to pry the chain free and drop it onto the chainring.

If your chain drops off the big ring onto your foot:

Finally, what do you do if the chain flys off the big ring and ends up hanging outside the crank arm? Or perhaps it ends up on your foot?!

In this case, you gently roll along and use a similar shifting technique, except that now you are shifting down toward the small ring. So you will pedal gently and shift down, hoping the chain comes back up and over to the big ring.

This actually happened to me in the inaugural Tour de Susquehanna. I shifted the chain right off onto my foot! I had to slow down quite a bit, but by some stroke of luck, I was able to unclip my foot and lift the chain slightly (with my foot,) then it shifted back into place!

It won’t always work that well, but it’s worth a shot.

It’s the little things like this that are sometimes difficult to teach another person, because you just learn to adapt and overcome while out on the road.

Are there any other instances or types of errors that you fix without even thinking about anymore? If so, let me know in the comments!

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boeshield t9 bike lube review

What Boeshield says about their products:

“Boeshield T-9 is Space Age Technology for Bicycle Chains

  • Solvent Base flushes out old lubricants.
  • Penetrates deeply to thoroughly coat inner pins and rollers.
  • Dries to a clean Paraffin Wax film so it will not pick up dirt.
  • Lubricates and protects for 150 to 200 miles per application.

Completely Waterproof
Once dry, Boeshield T-9® will not wash off in rain, puddles, and mud. Water washing will remove sand, dust, and grime, but not the lubricant.

We feel we have the best product of its type on the market. If you can find a better penetrating lubricant and protectant, let us know, and we’ll refund your purchase price.

One Step Application: Clean, Lubricates, Protects
Spray on and wipe off. Boeshield T-9® will dissolve itself and flush out any other lubricant. For best results soak thoroughly and allow 2 or more hours for complete penetration. Then wipe off all external residue.

No Dirt Pickup
After wiping, Boeshield T-9® will dry quickly, leaving no sticky film to gather dirt and mud.”

boeshield t9 lube review

I received a sample of Boeshield’s product back in May ’10 to review for the site. I was enthusiastic to try out a ‘clean’ lubricant for my stable of bikes As of posting this review (31 Oct ’10), it has been six months, and my sample just ran out.

That means, this 4oz drip-bottle of lube was able to be used 72 times, according to Garmin Connect‘s recordings; which is more than likely closer to 80 uses. Yes, I used the Boeshield after either every single ride, or every other ride depending on which bike it was being applied to. Boeshield’s site states that it can effectively last up to 200 miles, but I am a cautious person who enjoys a clean drivetrain. This means that a single bottle of Boeshield can last around 14,000 miles (10% human error margin removed) of riding. That is longer than most bike chains will last. See what I mean? This stuff is a pretty good value.

Once applied to the chain, it is suggested to wipe off the excess an hour or two later. The lube is also pretty good at removing and displacing dirt and crud from the insides of the rollers and side plates. After a ride, you will see it coat your chainrings and cassette with a light layer of paraffin. This is a bit annoying looking, and takes a little time to remove without solvents, but it really is there to protect the bike. If the paraffin coats the teeth of your drivetrain, just imagine the beneficial properties that are in play on the chain!

I also enjoy putting a drop of the pivot points of my derailleurs, pedals, and brakes. I have not seen increased performance from these items with Boeshield application, but it has become quite ritualistic, and is very easy to apply and clean.

The 953 miles I have put on my carbon road bike (with brand new chain at start of application) has developed very little chain stretch and is still under 1/12th of an inch of wear. This alone has made me believe the worth of the product.

Also, coming in a drip bottle, it can be applied in a very clean and sparing manner. This leads to the bottle lasting a bit longer than a spray, and it prevents any excess spraying or dripping from landing on your rims, or possibly even your disc rotors.

The 4oz drip bottle retails for about $10. Last week, I went to my LBS and purchased a new bottle of boeshield, just because I have enjoyed its protective and lubricating properties enough to pay for it. As the price of bike chains, and drivetrains increase, you should really take as much effort as possible to protect them. Boeshield is just another step in protecting your investments.

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