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-   -   SRAM PC-850 Skippin' like a son-of-bisket! (https://www.bikeforums.net/bicycle-mechanics/555054-sram-pc-850-skippin-like-son-bisket.html)

PLANETSYNTH 06-24-09 09:10 AM

SRAM PC-850 Skippin' like a son-of-bisket!
 
A little back ground.
I have a Hard Rock MB I bought a few years ago. When I bought it the chain was skipping (on the rear cog) on the first ride out and broke. the LBS gave me a new chain and that chain never skipped.

After about only 1500 miles I just bought a new PC-850 to replace my old chain (which sees very little off road use). This chain skips on the rear cag whenever I put a good amount of force on the pedals (like going up a hill). I took it to the LBS and they said the Rings and cog was fine and the adjustment was good. I took out a link the make the tension a bit greater and it still skips. Are these PC-850 chains known for doing this?

Im not sure it the LBS will refund my $$ but I am really now just wanting to convert this to a SS.

shouldberiding 06-24-09 09:20 AM

Was it working fine before with the old chain? Why did you replace it?

Putting a new chain on a worn cassette will do that. Does it skip on all chainrings? If so, it's time to replace the cassette. Either that, or put the old chain back on. 1500 miles isn't a lot on a chain with minimal off road use, assuming it's been kept clean and properly lubricated.

PLANETSYNTH 06-24-09 09:27 AM


Originally Posted by shouldberiding (Post 9157383)
Was it working fine before with the old chain? Why did you replace it?

Putting a new chain on a worn cassette will do that. Does it skip on all chainrings? If so, it's time to replace the cassette. Either that, or put the old chain back on. 1500 miles isn't a lot on a chain with minimal off road use, assuming it's been kept clean and properly lubricated.

I measured it (over 24 links) and it was almost 1/16 over.
Skips mainly on the smaller cog gears (yep I use them the most)
I always took care of the chain.

I am 210lbs and a avid weight lifter squating over 400lbs. Not sure if that would cause premature stretch.

Panthers007 06-24-09 10:37 AM

When you put on a new chain, you usually need to also use a new cassette. Or a new cassette needs a new chain. For your future reference.

z415 06-24-09 10:44 AM

Sounds like you need a new cassette.

PLANETSYNTH 06-24-09 04:10 PM


Originally Posted by Panthers007 (Post 9157899)
When you put on a new chain, you usually need to also use a new cassette. Or a new cassette needs a new chain. For your future reference.

Yep.. this thing is going to get converted to a SS.
I really don't see a need for all these shifters and gears on a "tool around town" bike.

Now lets see if I can convert this thing for under $100 dollars.... Those SS chain tensioners are costly....

Panthers007 06-24-09 04:15 PM

I wasted a statement on a future-fixie?!

RELEASE THE CATS!

<better watch your back - these guys are tough!>

http://i424.photobucket.com/albums/p...og/Kittens.jpg

PLANETSYNTH 06-24-09 07:31 PM


Originally Posted by Panthers007 (Post 9160415)
I wasted a statement on a future-fixie?!

RELEASE THE CATS!

<better watch your back - these guys are tough!>

http://i424.photobucket.com/albums/p...og/Kittens.jpg

Those are cutie.... I mean tough looking kitties!!!:thumb:

Nothing is truely wasted..... no I can not spell.

Nessism 06-24-09 08:04 PM

Throw the old chain back on and thrash the crap of of the bike. Save the new chain for when you are ready to change the rear cogs.

rydaddy 06-24-09 09:19 PM

You can get a SS kit from Performance for around $30. Works fine on my tool-around-town bike.

Also, I disagree that a new chain requires a new cassette. In this case, yes. But not always.


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