Shimano Chain link

[iwan]

Alright guys ive bin taking off my shimano chain for a while now with a standard chain tool and then putting the same pin back in.

But i read that i should be putting in these other pins because the hole is stretched or sumthin when you push it out.

Anyone know if my chain is unsafe now and liable to just break apart on me or what ??

[Rob]

Iwan,

Hope this helps

Some chains, including Shimano, use chain pins which are peened to create a mushroom effect at the ends of the pins, which adds strength where they meet the outer plates. When a pin is pressed even partially out, this peening is sheered off on the side pressed by the chain tool. If this pin is reused, it will create a weak link at that pin, which could lead to chain breakage.

To prevent this weakness Shimano and some Campagnolo chains use special replacement pins when the chain is installed new or when one is removed and re-installed. These replacement pins have pilots that allow installation without damage to the pin or the outer plate. The pilot is then broken off or removed before riding. These pins come with the chains along with instructions for their use. Tip: It's a good idea to carry a spare pin for roadside repairs.

taken form thebicyclechain.com/page.cfm?pageID=80

[ftasb]

Aug 23, 2008 19:07:19 GMT Rob said:

...which could lead to chain breakage.

Yep, i know all about it after today's fiasco

Curley came up trumps for though, he's given me a brand new SRAM PC-59 chain for nowt, good lad ;D

[martinw]

Nice one rob I will put that link up as a reference in a thread.

[bikegod]

SRAM chains are a bit better than Shimano, in my experience. You can get extra Quick Links from your LBS. Realy great for those snapped chain days. They links cost £1 each.

And before anyone asks, You can't use them with a shimano chain. Shimano chains are slightly wider than SRAM chains, so the quick link creates a stiff link when used with a shimano chain.