I would like to know how long Shimano XT cassettes and front blades typically last? I just had my bike in for a service at my LBS its only done 2700Km The shop told me my chain and front blades and casket needs to be replaced I have never had chain slip and can not see any visible wear and tear Does this sound normal? They also changed my 6902 bearing in the headset and I never felt anything wrong with it
Hoe long does shimano XT parts last?
Cornelius Prins
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I would like to know how long Shimano XT cassettes and front blades typically last? I just had my bike in for a service at my LBS its only done 2700Km The shop told me my chain and front blades and casket needs to be replaced I have never had chain slip and can not see any visible wear and tear Does this sound normal? They also changed my 6902 bearing in the headset and I never felt anything wrong with it
2700km is about right.
It is generally usual to replace the chain before having to do the cassette and chainrings. KMC and Shimano chain last the longest. Look closely(magnifying glass) at the teeth of the gears you use most. Compare them to the least used gears. Measure the chain stretch in 12". If it is much more than an 1/16" you may have left it too long and everything needs to be new.
If you do your own maintenance in the future you can take more preventative steps.
http://sheldonbrown.com/brandt/chain-care.html
It is generally usual to replace the chain before having to do the cassette and chainrings. KMC and Shimano chain last the longest. Look closely(magnifying glass) at the teeth of the gears you use most. Compare them to the least used gears. Measure the chain stretch in 12". If it is much more than an 1/16" you may have left it too long and everything needs to be new.
If you do your own maintenance in the future you can take more preventative steps.
http://sheldonbrown.com/brandt/chain-care.html
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In general I'd say no, 2700km isn't too long, except for the chain and well sadly that's the big thing if left unchecked. Depending on on your conditions and if you ride in alot of mud and muck, water etc, your drivetrain parts may wear quicker than someone who lives in a dry area and doesn't ride if it's wet.
I use XTR chains and find I can normally get around 1,000 miles out of one before it needs replacing, which is before it gets stretched far enough to start wearing out the rings and cassette. Cassette wise once you make sure and replace your chain regularly I've gotten over 5k miles out of one and I ride in all sorts of crappy weather, but as said, replace my chain regularly before it sees 1/16th" stretch over 24".
I use XTR chains and find I can normally get around 1,000 miles out of one before it needs replacing, which is before it gets stretched far enough to start wearing out the rings and cassette. Cassette wise once you make sure and replace your chain regularly I've gotten over 5k miles out of one and I ride in all sorts of crappy weather, but as said, replace my chain regularly before it sees 1/16th" stretch over 24".
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I've gotten 800 miles each from two seperate XTR chains. At the end of the two chain's lives It was time to change the middle chainring and cassette. (on a SLX dirvetrain) The first chain did not skip when it needed changed. the second one would skip when I mashed the cranks. I ride in nasty conditions and I'm not the most anal of keeping my stuff cleaned so that is probably costing me some life in parts but oh well.
I also have a theory that it is possible for a XTR chain to wear out faster because of it being made from lighter materials and possibly thinner gauge materials.....I'm not certain of this but it makes sense to me.
I also have a theory that it is possible for a XTR chain to wear out faster because of it being made from lighter materials and possibly thinner gauge materials.....I'm not certain of this but it makes sense to me.
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as said above
if your gonna get a whole new drivetrain anyway, no point in putting it on until the old stuff starts slipping.
dirvetrain wear depends very much on the conditions you ride in so no one can say for sure if your drivetrain truly is worn out or not without seeing it. could be the shop sees worn components as worn out and is trying to sell you new stuff a little prematurely??? but who knows without seeing/riding it.
if your gonna get a whole new drivetrain anyway, no point in putting it on until the old stuff starts slipping.
dirvetrain wear depends very much on the conditions you ride in so no one can say for sure if your drivetrain truly is worn out or not without seeing it. could be the shop sees worn components as worn out and is trying to sell you new stuff a little prematurely??? but who knows without seeing/riding it.
You should never have to replace the casket if you ordered the zero worm tolerance policy.
XT parts love you long time.
Get a small 12"/30cm metal machinist ruler at your local discount tool place for $3 and check your own chain, - it's easier to measure on the bike using metric. 25.4mm is 'new', 25.5mm is good, replace at 25.6mm and your chainrings and cassette will last much longer. The quickest way to wear out gears is to run a stretched chain on them. Worn out gears will not skip until REALLY bad with the chain that wore them out, put a new chain on worn out gears and it will skip.
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All sorts of things can happen when the chain is scared.
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I will not change it in my quote.
When parts are worn, the chain does not engage the teeth properly and it jumps under pressure.
It last happened to me when I put a new chain on a badly worn xt-ii drivetrain in about '92. The teeth on the chainring are pulled towards the back, sharkfin shaped, the new chain won't properly sit down in the 'pockets', but sits high enough that when power is applied you will spin the chainring (a half turn or a turn) inside the chain. It does not feel right.
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Thanx guys I am just going to keep riding it until some sort of failure I get the Idea the guy just wanted to make a sale
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Instead of risking breaking your bike, or hurting yourself, why don't you just measure your chain and replace it when it needs to be replaced?
People with that attitude are the same people who file lawsuits against bicycle manufacturers, because their product fails when it is already way past due for maintenance. Hold up your end of the bargain, please.
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when the chain is worn past the tolerance suggested by other posters it's going to accelerate wear on the rest of the drivechain and you end up having the replace the whole drivechain.
I would suggest getting a measuring tool, chain wear gauge tools are cheap enough, simple to use. Have the chain replaced before it starts wearing out the other components.
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I went though 3 chains before needing to replace my chainrings and cassette, just short of 7000km (sram drivetrain)
I would suggest getting a measuring tool, chain wear gauge tools are cheap enough, simple to use. Have the chain replaced before it starts wearing out the other components.
I went though 3 chains before needing to replace my chainrings and cassette, just short of 7000km (sram drivetrain)
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I have been riding my bikes until they start to slip for about 15 years. Nothing has broken in that time, only the drive train has worn out. My end of the bargain is to to get appropriate wear out of out my bike. This has nothing to do with filing law suits.
Tim
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There is a difference between a slip and a failure.
I have several thousand miles on a SRAM XX cassette, and I'd be willing to bet a person with a "pro" license puts a fair bit of strain on parts.
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+43^^^
Riding until your drivetrain is completely shucked makes that $5000 rig feel like dog poo, and is less economical then replacing your chain at reasonable intervals.
If it were me I'd get to it now, those front rings may still be OK.
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