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Can you remove the plastic disc at the end of your casette?

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Can you remove the plastic disc at the end of your casette?
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flag PG308
Posted: Jan 13, 2012 at 4:28 Quote
Can you remove the plastic disc at the end of your casette by the wheel end? What does it actually do? As mine keeps coming loose after one ride.
flag OKona91
Posted: Jan 13, 2012 at 4:39 Quote
Yep, just stops the chain chewing the spokes if it happens to come off, as long as your limits are set correctly( which they should be!!) rip it off
flag PG308
Posted: Jan 13, 2012 at 6:10 Quote
Limits are set correct? It has a gamut chain guide fitted so hopefully chain shouldn't come off.
flag OKona91
Posted: Jan 13, 2012 at 6:54 Quote
Shouldn't come off then, even if it does, it's not
A big deal, but then.... Don't let this scare you... Sometimes if it does come off the spokes can grab the chain and pull it, breaking your derailer in some cases, but this won't happen to a well maintained gear set up Smile
flag theman554
Posted: Jan 13, 2012 at 7:32 Quote
Yes, I am a mechanic myself and what you do is remove your casette (need cassette tool and chain whip), then just slide the plastic ring out. Another way is to get long sheers and cut it out, a little simpler but have to be more careful not to cut a spoke. Personally I always advise clients to remove it because it ends up causing more damage than good, when it chips away the plastic can damage your chain and cassette, and as others have stated as long as your low limit is set correctly it is completely unnecessary.
flag PG308
Posted: Jan 13, 2012 at 15:21 Quote
What does the low limit mean?
flag kim1
Posted: Jan 13, 2012 at 16:42 Quote
It means you need to adjust your rear derailleur so your chain does not jump over the cassette and do damage to your spokes.
flag finnbjorn96
Posted: Jan 13, 2012 at 16:59 Quote
like everyone has been stating up above, the plastic piece doesn´t do a thing if you´re derailleur is set up correctly Wink

so if you set up you´re derailleur up as explained in the link below, you should be fine (high and low limit screws are explained pretty well there aswell)

https://www.pinkbike.com/news/tech-tuesday-sram-rear-derailleur-adjustments-2010.html
flag PG308
Posted: Jan 14, 2012 at 4:56 Quote
Ok well ive just gone and run through the gears and noticed it wont go on the highest cog as shifter wont click up anymore and also noticed the bottom 3-4 gears are abit clunky when i change. Now i know i can adjust derailler for the clunky low gears but any idea why it wont change to the highest cog? its as if i have 9spd shifters but a 10 cog casette if you understand?
flag OKona91
Posted: Jan 14, 2012 at 6:09 Quote
It could be that your limit screw is stoping it ? Hav a look and see
flag finnbjorn96
Posted: Jan 14, 2012 at 7:06 Quote
PG308 wrote:
Ok well ive just gone and run through the gears and noticed it wont go on the highest cog as shifter wont click up anymore and also noticed the bottom 3-4 gears are abit clunky when i change. Now i know i can adjust derailler for the clunky low gears but any idea why it wont change to the highest cog? its as if i have 9spd shifters but a 10 cog casette if you understand?
you can´t mix up 9 and 10 speed drivetrains mate... if you´re going to run 10 speed, you need a 10 speed shifter, derailleur, cassette and chain. Same if you want to run 9 speed.

10 speed cassettes have narrower spacing than 9 speed ones, so a 10 speed cassette requires a narrower chain to fit properly between the cogs. It also means that the derailleur moves less with every shift.
so if you have a 9 speed system and have a 10 speed cassette or what ever, no wonder why it´s all messed up.
flag OKona91
Posted: Jan 14, 2012 at 8:58 Quote
He said as if it's like using 9speed shifter with 10speed, that's not what he is doing, at least that's what I took from it
flag mrmizzle5
Posted: Jan 14, 2012 at 9:26 Quote
OKona91 wrote:
It could be that your limit screw is stoping it ? Hav a look and see
flag PG308
Posted: Jan 14, 2012 at 9:31 Quote
Everything is 10spd as it is a demo 8 II complete and I haven't changed anything. I noticed today that when on gear 1 my shifters will shift down again so I'm guessing my derailler has been set up wrong and it's going to have to go back to the shop to be sorted.
flag Scythe888
Posted: Jan 15, 2012 at 0:14 Quote
finnbjorn96 wrote:
PG308 wrote:
Ok well ive just gone and run through the gears and noticed it wont go on the highest cog as shifter wont click up anymore and also noticed the bottom 3-4 gears are abit clunky when i change. Now i know i can adjust derailler for the clunky low gears but any idea why it wont change to the highest cog? its as if i have 9spd shifters but a 10 cog casette if you understand?
you can´t mix up 9 and 10 speed drivetrains mate... if you´re going to run 10 speed, you need a 10 speed shifter, derailleur, cassette and chain. Same if you want to run 9 speed.

10 speed cassettes have narrower spacing than 9 speed ones, so a 10 speed cassette requires a narrower chain to fit properly between the cogs. It also means that the derailleur moves less with every shift.
so if you have a 9 speed system and have a 10 speed cassette or what ever, no wonder why it´s all messed up.
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