gremlin Posted October 22, 2009 Posted October 22, 2009 Had my MTB bike in for a service. They said the chain has got play and that when they replace this they'll need to replace the following as well: ChainCassetteChain rings x3D?railleur wheels. I understand the Chain and D?railleur wheels, but Cassette and x3 chain rings. This should cost me about R1500.Must all this be replaced? Or do they just want to sell all this to me? I got my bike in April 2009.
Regard Posted October 22, 2009 Posted October 22, 2009 Hell, either you do 1500km per month or they just want to sell. P.S. if you only going to pay R1500 for all that( depending on model) its not a bad price. Maybe pay and be sure your bike is fightiing fit! (XT casset R800, Chain R300, chain rings R500, wheels?R200)?????
Mudsimus Posted October 22, 2009 Posted October 22, 2009 Cassette - MaybeChain - Yes Der wheels - NoChainrings - NoUnless you did thousands of km on that worn chain.
Aquatic Posted October 22, 2009 Posted October 22, 2009 Sounds like they want to sell more than needed.I doubt those chainrings and cassette really do need replacing..Check it and see how worn the cassete and rings are.It may be a general rule to change the cassete and chainrings when replacing the chain,but is not always a necassity
jugheaddave Posted October 22, 2009 Posted October 22, 2009 Sounds to me like another case of LBS becoming LRS (local ripoff shop)
Johan Bornman Posted October 22, 2009 Posted October 22, 2009 You are being taken for a ride. Learn how to gauge these things yourself. Seach for Chain Elongation here on The Hub. If you are energetic, read a document called Everything YOU need to know about bicycle chains. Also posted here. Then, find another bike shop or call their bluff and make a scene.
Tieffels Posted October 22, 2009 Posted October 22, 2009 Just use the search feature in the Tech Q&A. There are very specific wear limits on chains, measure across 12 links and for new chain it will be 12". Replace only chain if worn to 12 1/16", replace chain and casette if worn to 12 1/8" as explained below: http://www.sheldonbrown.com/chains.html#wearhttp://pardo.net/bike/pic/fail-004/000.html You only need to replace the rings when the chain starts slipping at the front, which should not be the case if you still have all your teeth, so they are tuning you grief about that. Also do not trust the measuring tool jobby that they will use you to show you wear. It must be the pin to pin distance that determines wear.
kosmonooit Posted October 22, 2009 Posted October 22, 2009 its an old trick used on many (including myself) by otherwise trustworthy lbs on unsuspecting customers: that is having to replace cassette and chain rings when replacing a chain, and thats not neccessary until its really worn down and thats very obvious to see. kosmonooit2009-10-22 09:02:45
techguy Posted October 23, 2009 Posted October 23, 2009 I had this once, when I only replaced the chain and cassette on the customers request, he came back a week later screaming at me cuz I did a K@k job and the bike was unridable cuz the chain was slipping on the worn out rings... not my fault he didn't want to pay... Moral of the story, don't always assume people (LBS's) are trying to rip you off...
gremlin Posted October 23, 2009 Author Posted October 23, 2009 I wanted to say that was Bull when he said the front chain rings need replacing. I liked that LBS but if someone wants to rip me off, I'll just move on. This would be then my 3rd LBS change.
Bos Posted October 23, 2009 Posted October 23, 2009 Had my MTB bike in for a service. They said the chain has got play and that when they replace this they'll need to replace the following as well: ChainCassetteChain rings x3D?railleur wheels. I understand the Chain and D?railleur wheels' date=' but Cassette and x3 chain rings. This should cost me about R1500.Must all this be replaced? Or do they just want to sell all this to me? I got my bike in April 2009. [/quote']What bike is it.. If you have a lekker bike and dont know to much about bikes they might be taking you for a ride.. but If its a "cheepish" bike Im sure they will put 2 and 2 together and figure that you are not just going to fork out major bucks..In that case they might be talking the truth.
mountain_lion Posted October 23, 2009 Posted October 23, 2009 The info already posted will tell you how to measure your chain yourself to determine wear. However proof of the pudding is in the eating... You can just replace the chain and go for a ride. If the chain skips on the cassette in some (or all) gears then the chain has worn the cassette to the point where it can no longer accept a new chain (this eventually happens to all cassettes). You now have 2 options: 1. Replace chain and cassette 2. Keep the old chain and old cassette and ride it until you experience problems with it. Keep in mind that doing this will also accelerate wear on the front chain rings.
gremlin Posted October 23, 2009 Author Posted October 23, 2009 Bos, got a Dual Sus Specialized. Just came back from Another LBS, This all needs replacing. I know what to blame for that. The fun and Muddy Illovo Eston this year. It took its toll, but Ill be back. Just strange that after the race went for a service after that race that they did not inform me about the chain.
NinjaManiak Posted October 23, 2009 Posted October 23, 2009 The info already posted will tell you how to measure your chain yourself to determine wear.However proof of the pudding is in the eating... You can just replace the chain and go for a ride.If the chain skips on the cassette in some (or all) gears then the chain has worn the cassette to the point where it can no longer accept a new chain (this eventually happens to all cassettes).You now have 2 options:1. Replace chain and cassette2. Keep the old chain and old cassette and ride it until you experience problems with it. Keep in mind that doing this will also accelerate wear on the front chain rings. Very sound advice as always Mr Lion.Also look for chainsuck with new chain/old chainrings: http://www.fagan.co.za/Bikes/Csuck/
Johan Bornman Posted October 23, 2009 Posted October 23, 2009 The info already posted will tell you how to measure your chain yourself to determine wear.However proof of the pudding is in the eating... You can just replace the chain and go for a ride.If the chain skips on the cassette in some (or all) gears then the chain has worn the cassette to the point where it can no longer accept a new chain Cut cut cut cut Correct. 2. Keep the old chain and old cassette and ride it until you experience problems with it. Keep in mind that doing this will also accelerate wear on the front chain rings. Incorrect. It will NOT accelerate wear on the chainrings.
mountain_lion Posted October 23, 2009 Posted October 23, 2009 2. Keep the old chain and old cassette and ride it until you experience problems with it. Keep in mind that doing this will also accelerate wear on the front chain rings. Incorrect. It will NOT accelerate wear on the chainrings. Johan, please explain why not. I know that wear on a driven sprocket differs fundamentally from wear on a driving sprocket, and thus wear on bicycle cassette is much faster than wear on the chain rings, but there still is wear on the chain rings. My reasoning is this: Using a chain which has elongated to the extent where its pitch does not match the sprocket by a substantial margin, will result in the chain "riding higher" on the teeth of the chain ring, thus contacting on a smaller area while transferring the same force. Surely this results in more wear or not?
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