I just installed a SRAM 10 speed cassettee on a training wheel on a
Ultegra bike that was shifting perfectly. It is now noisy in the middle of the cassettee.
I baught the Sram becuse it was 20 bucks cheaper than ultegra.
is it hopeless?
adjust?
Things to check:
The Ultegra cassette had a 1mm spacer behind it. This should not be used with the SRAM cassette.
Did you torque the lockring to the specified torque 40Nm and then verify the cogs are solid on the freehub body and not moving around?
Once that is done, the SRAM cassette should be almost exactly in the same position as the Ultegra had been. You typically should not have to adjust RD stops, you may have to adjust cable tension just a bit.
If you have the SRAM OG1070 cassette SRAM now has an update to this cassette known as the PG1070. This came about due to the “open tooth” design on the 1070 and the noise. Check with your local LBS for SRAM replacement. Beware online buyers there are many shops dumping the OG1070 due to this reason. This has no affect on the “Red” cassettes.
I’ve been having a noise issue on my 08 Transition (new) as well–and I can definitely feel it when I pedal, I can feel it throughout the bike, like an added piece of resistance. We’ve checked the cable tension, lubed the chain, adjusted the deraileurs (it kind of sounds like when the chain hits the front derailleur–that very rythmic noise–but that isn’t it). It’s in the middle of the cassette, typically.
I know aside from the aerobars, the cassette is the only real difference in the 08 and 09 comps–the 09 has a shimano cassette. Mine has the SRAM OG-1070.
We WERE going to remove the chain, and degrease and relube it again (bike has never been on the roads, maybe couple hours on the trainer only)…but now I think I’ve found the issue.
Do I NEED to switch cassettes? And if so, should I look at going to a shimano, or just switching to the PG SRAM?
Is this a recall from SRAM? I can’t find any information about it on their website.
I feel like I may have been duped, I just bought a OG1070 and it does indeed click.
From what I understand from talking to a guy at Roswell Bicycles the PG cassette is simply a quieter option from the OG cassete. The OG cassette is noisy but has very positive shifting (read shifts under standing climbing efforts, no problem). While the the PG cassette is quiter because it does not have the missing tooth like the OG (Open Glide i.e. missing tooth) it also does not shift as powerfully. I have not tried the PG cassette but was told that about it. I ride the OG cassette on two different bikes and it is noisy but it does shift, on time, everytime. I would assume that the PG cassette would shift well and that there is no need to avoid and in fact could be prefereable based on your noise tolerance. Hope that clears up the OG, PG question.
i won one at Rockman a few years ago. I put it on for ironman this past year and it stopped being so noisy after I broke it in a bit. It worked perfectly for Roth.
Did you “feel” the noise, too? I don’t know how elese to explain it, really, except that it feels like there’s something THERE…
This is NOT a recall from SRAM it is just an option for those having issues with the OG1070 cassette. For those of you with problems like i was saying contact SRAM or your LBS.
to tell you the truth i can’t remember. sorry about that.
Did you replace the chain as well? Sometimes “noise” is created when one uses an old chain that has stretched with a new cassette as the links and teeth do not quite match up until some break in has occurred.
Sometimes adjusting the barrel at the rear derailleur can make a huge difference. Pedal the bike and turn a few times each way to see if the fine tuning adjusts out the catch. When mine was doing this I found that it was the chain catching ever so slightly.
Did your sram start out with sound / vibration like a misaligned front derailer?
here is my order from Nytro
27238 SRAM Rival 10spd Cassette - 12/27
1 $87.95 $87.95
This cassette does have the missing teeth. I have rode it all of 1/2 mile
with a low miles chain. it is Smooth on the big top and small bottom but vibrates in the middle.
Will it quiet completely? It a noisy world out there and the quietness of my cycling time
means a lot to me.
I had this same issue with the OG-1070 cassette, Shimano derailleurs. No amount of RD adjustment would make the clicking/rattling noise go away in the 14-16 tooth range, and it would feel like the rear derailleur was “skipping” (like when one is way out of adjustment, even though the chain was perfectly centered over the cogs). I tried switching to a SRAM chain to see if that would help, but no dice.
I eventually just went with Ultegra for my cassette and am back to quiet riding.
Thanks for the direct answers. sram noise SRUCKS.
WOW , Slow twitch is like Captain Kirk’ s computer . Colectively it know everything.
While I really don’t feel like getting a new cassette, I’m glad to know it’s not me.
But I am REALLY tired of this bike, and I haven’t even had it on the road.
Well, I was kind of bummed when I read this because I had already just ordered an OG-1070 in an 11-28 for the tandem from PBK. To my delight, when the package arrived today, it was a PG-1070! So they are apparently already being substituted in the supply chain.