Gear Talk / Drive train/gearing changes
« on: October 19, 2007, 03:01:04 am »That theory makes no sense, let me explain.
The chain and the cog make a single mechanical apparatuses, there is little force for the chain to operate independently of the cog to generate that much force. A bicycle is a machine of torque amplification, not horse power (The average human only develops about 1/8 of a horse power). 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. More likely, it would have let the energy go in a way that caused the chain to jump the cog and bind in other places. In such a case it would not hold the load possible to bend steel, even in a weakened state. As the tire is the weakest point of the three, it would give long before the cog or chain did. Thus, it is very probable that the cog went first causing sufficient stress on the chain to cause a link to snap. considering that a 34T produces an incredible amount of torque at the rear hub (When a small gear drives a larger gear, torque is multiplied), it is much more plausible that the cog went prior to the chain. But, this is indeed as much conjecture as your theory!

Have a good ride!
Get a bicycle. You will not regret it. If you live. Mark Twain
This message was edited by MichaelTheWingN on 10-18-07 @ 11:06 PM