These gears wore out?

[RollingAround]

Chain been skipping in every gear except one of the middle gears.

Can someone confirm that my gears are shot?

[jlmuncie]

Can't really tell by pictures but if the drivetrain is always that dirty I can see where the wear would come from. How old is your chain? If you recently replaced the chain then it's likely the gears are worn and you might need a new cassette. It also kinda looks like you might have a broken tooth on your big chainring but the pic is too blurry to tell for sure, some chainrings have peculiar shaped teeth for better shifting.

[Fyrblade]

They are shot and yeah even my motorcycle front sprocket isnt so glopped up

Not judging tho.. If it works for you then good on ya

[David C]

That drivetrain (and your camera auto-focus) is toasted big time. Time for an upgrade

["Rod"]

The front ring looks like toast too because the teeth are extremely sharp.

[RollingAround]

Yep, I should of replaced them months ago.

My bike is equipped with Alivio rear derailer Sram 8 speed Cassette and truativ x-Flow front crank.chain rings.

If I am to replace all of these, I'd like to upgrade to the stuff that is one up from what I have either Sram or Shimano.

Are all of these things interchangable? I mean will an XTR group set bolt straight onto where the original groupset were? Plug and play? Or do I need to mod frames and all that?

Bikes a response sport.

[ecub]

Hmmm. Pics seem to be deleted.

[David C]

Originally Posted by RollingAround

Yep, I should of replaced them months ago.

My bike is equipped with Alivio rear derailer Sram 8 speed Cassette and truativ x-Flow front crank.chain rings.

If I am to replace all of these, I'd like to upgrade to the stuff that is one up from what I have either Sram or Shimano.

Are all of these things interchangable? I mean will an XTR group set bolt straight onto where the original groupset were? Plug and play? Or do I need to mod frames and all that?

Bikes a response sport.

1. You need to get a crankset that matched your current BB spindle type. Like a Square tapered or ISIS, etc.

2. For your rd, you need to have both rd and rear shifters from either SRAM or Shimano, because they have different pull ratio. For your front der, you can mix & match both brands. Only exception to the rear der is using the SRAM Attack or SRAM Rocket shifters that are designed to work with Shimano rear derailleurs.

3. For the cassette, you can use SRAM or Shimano, doesn't matter. I prefer Shimano's cassette personally.

4. For your chain, simply get a 8 speed chain for a 8 speed setup, a 9 speed one for a 9 speed setup, and a 10 speed one for a 10 speed setup. Same rule apply when you'll be choosing your cassette, derailleurs, crank and shifter. Note that you can use a 9 speed derailleur (front or rear) on a 8 speed setup. Just be sure to use a 8 speed rear shifter. You can also use a 9 speed crank with your 8 speed stuff. My personal preference for chains goes to KMC.

5. You can usually find a groupset of either brand, in the performance level you want (like SRAM X5, X7, X9, XO or Shimano Deore, SLX (LX), XT, XTR), for less then the cost of each individual parts. They usually include the crankset (most also comes with a BB too), the chain, the cassette, the derailleurs and the shifters. Everything you need.

Now to do all that, you will need a few tools :

A cassette lockring tool (like the Park FR-5).
A crank puller.
A BB tool (if you need to remove your BB).
A chain tool (to remove your old chain and size the new one).
A quick link (if your new chain doesn't comes with one, or a spare pin for the Shimano chains, but you can still use a quick link on them anyways, since you're not supposed to reuse a pin once you push it out)
Also a chain wipe to hold the cassette in place while you remove or install the lockring (you can also use a big vice-grip tool if you want).
A set of metric Allen keys.
A screwdriver for derailleurs adjustments.
A pedal wrench if you can't remove your pedals with a regular 15mm wrench or with an Allen key.
Some grease to grease the BB spindle when installing the crank and on the pedals threads. I would use white lithium grease. Also a bit on the freehub body before installing the new cassette, helps prevent corrosion over time. And on the lockring threads too.
A cable cutter if you feel like it (you can also use a good pair of pliers).
And a few others that the current bike condition might required.

Have fun

David

[RollingAround]

Originally Posted by David C

1. You need to get a crankset that matched your current BB spindle type. Like a Square tapered or ISIS, etc.

2. For your rd, you need to have both rd and rear shifters from either SRAM or Shimano, because they have different pull ratio. For your front der, you can mix & match both brands. Only exception to the rear der is using the SRAM Attack or SRAM Rocket shifters that are designed to work with Shimano rear derailleurs.

3. For the cassette, you can use SRAM or Shimano, doesn't matter. I prefer Shimano's cassette personally.

4. For your chain, simply get a 8 speed chain for a 8 speed setup, a 9 speed one for a 9 speed setup, and a 10 speed one for a 10 speed setup. Same rule apply when you'll be choosing your cassette, derailleurs, crank and shifter. Note that you can use a 9 speed derailleur (front or rear) on a 8 speed setup. Just be sure to use a 8 speed rear shifter. You can also use a 9 speed crank with your 8 speed stuff. My personal preference for chains goes to KMC.

5. You can usually find a groupset of either brand, in the performance level you want (like SRAM X5, X7, X9, XO or Shimano Deore, SLX (LX), XT, XTR), for less then the cost of each individual parts. They usually include the crankset (most also comes with a BB too), the chain, the cassette, the derailleurs and the shifters. Everything you need.

Now to do all that, you will need a few tools :

A cassette lockring tool (like the Park FR-5).
A crank puller.
A BB tool (if you need to remove your BB).
A chain tool (to remove your old chain and size the new one).
A quick link (if your new chain doesn't comes with one, or a spare pin for the Shimano chains, but you can still use a quick link on them anyways, since you're not supposed to reuse a pin once you push it out)
Also a chain wipe to hold the cassette in place while you remove or install the lockring (you can also use a big vice-grip tool if you want).
A set of metric Allen keys.
A screwdriver for derailleurs adjustments.
A pedal wrench if you can't remove your pedals with a regular 15mm wrench or with an Allen key.
Some grease to grease the BB spindle when installing the crank and on the pedals threads. I would use white lithium grease. Also a bit on the freehub body before installing the new cassette, helps prevent corrosion over time. And on the lockring threads too.
A cable cutter if you feel like it (you can also use a good pair of pliers).
And a few others that the current bike condition might required.

Have fun

David

Wow, thanks. This answers....everything.

Currently Alivio RD, Sram 8 speed cassette, Acera FD, Truativ X-flow crank-set. Shimano 8 speed rapid fire shifters/brake combo.

I just wanted to upgrade to the next best thing(why not?) so that seems to be plain old Deore stuff....not xt or anything. However the group cost in the 500 dollar range...I didn't pay half that for my bike.

I'm thinking of just putting stock back on this bike and give it a nice cleaning, lube job and adjust it out perfectly so I can keep riding it, but I plan on going up on the bike spectrum this spring... Possibly a nice stump jumper HT.

thanks again...most likely going stock I guess. A stock Alivio RD is 18 bucks new on ebay...sooo.