Chain breaking force

scally56

Random question here

I was out on a ride and my chain broke whilst i was trying to pop a wheelie, hahahahaha.

Anyway what I'm after is what is the chain breaking force, assuming its brand new with no wear and tear etc. I know this is a opened ended question as there a few factors that can cause a chain to snap, as in one of those chain links (currently having a brain fart and can't remember the technical name for them) dislodging and therefore the chain coming apart. But what i want to know is what sort of force is required to actually snap the chain apart so the link can't be used again, with new bar thingy that connects the links together (another brain fart).

Cheers

Simon

Splasher

Depends on the materials and whether it is a 7, 8, 9 or 10 speed etc. but somewhere north of a Tonne or 10 - 16kN if you prefer.

scally56

dam thats a lot of force. 10kN is a lot of force, its amazing how you can produce that amount of force.

Cheers

Splasher

You can't produce that amount of force. When you break a chain it's normally because the chain has previously suffered some trauma that weakens a rivet or plate or you have it running crossed and you pop a plate off. Even with the granny ring you'd have to weigh about 250kg to produce that much force.

You're not that heavy are you?

danhx

You'd probably break something else before you even got to pedel if you weighed that much. Oh, and thats if you could lift your tree trunk over the top tube to mount the bike.

scally56

no i'm only a slight 120kg, serious. hahahahahaha.

Thats why i was asking about cancelling out all other variables, such as slippage etc. It does show you that something else has had to have happened for it to snap, not just superhuman leg strength.

Cheers

Simon

clarkson

Splasher wrote:

Depends on the materials and whether it is a 7, 8, 9 or 10 speed etc. but somewhere north of a Tonne or 10 - 16kN if you prefer.

really!! bloody hell thats a lot of force!!