Chain replacement

[Nerdy Norm]

Thanks again chaps. I'll go for the rear sprocket, as I definitely don't like the idea of trashing my casing. Just waiting for some bits from SCK, hopefully they'll arrive tomorrow so I can crack on over the weekend.

[Donnie]

True but let's face it.. That's one f@@k up we all only do once lol

Ain't that the truth!

[coaster]

If you still have the original metal chain guides it would be wise to remove them and inspect VERY carefully for any signs of cracking. I prefer the aftermarket push up or pull down type as it's one less catastrophe waiting to happen

[Nerdy Norm]

Yes, the original guides are very worn, and will be replaced at the same time.

[Nerdy Norm]

OK, I've fitted the new chain, as well as a pair of Tino chain guides.

The chain seems pretty tight, without any tension from the guides. It's definitely the correct length (80 links, same as the one I removed), so hopefully it's OK.

I had to file a bit off the bottom-left corner of the top guide to stop it catching on the rear sprocket. As seen in the pic, the lower guide doesn't touch the chain, even in its highest position. Is that OK, or should the chain be resting on the guide?

[bristolmod]

How strong is that material?

The reason I ask is that the retaining bolts pinch up the guides directly onto the upper plate itself- is there any chance of the plate splaying when the bolts are tightened thus allowing it to move about?

Would some substantial washers or a metal plate under the nuts be a good idea?

Chris

[Nerdy Norm]

I wondered the same thing, but I've tightened them up and there doesn't seem to be any movement. I guess the tab washer plate thingy acts as a kind of washer. If I add an extra washer under the bolt, I'll need to get longer bolts anyway, as the Tino Sacchi chain guides are thicker than the standard ones.

[shocky]

I normally use a stud in there with low tension stud lock to secure it then the guides then flat penny washers then nylocks. In 20 years I've never had one come loose

Sent from my C5303 using Tapatalk

[shocky]

Sent from my C5303 using Tapatalk

[Nerdy Norm]

That looks good - any idea what size studs I need to get?

And I see that your chain seems to be resting on the bottom guide, whereas mine sits a few mm above it (even at its lowest setting) - is that a problem?