Small ring weirdly still seems fine. This topic has 12 replies, 11 voices, and was last updated 4 years ago by fifeandy. Viewing 13 posts - 1 through 13 of 13 total. When do you replace drivetrain components?
Posted 4 years ago. Depends a awful lot on your local conditions Posted 4 years ago. P-Jay Free Member. The 19T sorted itself out after km but the 15T a staple of Longchamp did not, so I thanked this cassette for its service and retired it. Looking at the sprockets closely, I suppose the 15T, being small, does not need as much wear as the 19T to cause problems, because it looks in better shape at first glance.
Sorry for not giving the cassette a bath before the photo. Never mind a bath, it looks cleaner than a 16, km cassette has a right to! Interesting that the tooth sprocket didn't skip, not only because it's between the two that did, but because some of its teeth look, to me, more worn to a sharp point than the 15 and But with teeth being shaped, it's hard to tell visually to me at least. Riding a bike through a city is like navigating the collective neural pathways of a vast global mind.
I often tap along in the 19T, and the 15T is one of my most-used gears at Longchamp a 3. But of course I use the 17T plenty. This is after the 19T started working again, but barely. Paul L'enfer, c'est les autos. Excellent thread.
That second pic really helped me appreciate the effect of wear. What's so funny about peace, love and understanding? Yes, that second photo really shows how the teeth are worn across their length. But it's not so dramatic a difference that you'd notice it without the new cassette for close comparison. So that poses a question for replacement: do you only replace once the problem becomes noticeable in use and risk a skipping cassette at an inconvenient time , or do you replace as soon as you think it's about to become a problem and risk replacing needlessly soon?
I guess to an extent it depends on purpose: if you're about to take part in a crucial race, a long event or a long tour, maybe better replace it now. If it's general day to day riding, commuting and stuff, better to wait till it's actually a known problem rather than waste money on it. Or maybe it's possible to measure the size of the most worn teeth on a worn out cassette with calipers and compare to the in-use cassette from time to time, but I don't reckon my precision skills are up to that your precision might vary, etc.
Paul H. Chain on my commuting bike This is my chain on my commuting bike. Despite frequent spraying, it has rust. Chain length Take a new chain and put it in the largest front chainring e. Then put it on the largest cassette sprocket at the back, nearest wheel. This will be a 25 or 27 tooth sprocket.
Pull the chain tight and see where it meets; to this then add an extra two links. This chain length including the two links is the ideal size of a chain. Changing cassettes A worn cassette, teeth have become a bit pointed.
A new cassette. Changing chainrings The worn chainring is on the top. To test whether you need to change your chain ring, it is the same as for cassette. Is there slippage when riding? Do the teeth look more like hooks, with bigger gaps? Overall Changing regularly will help prolong life of your cassettes and chain-rings.
It is better to buy several cheaper chains then try make your Dura Ace chain last a long time. Have a look at shape of teeth.
When they start to become like hooks, they will need changing. Chainrings need changing less frequently. Also, the more teeth they have the less they will get worn. THerefore an inner 36 ring is more likely to need changing than an outer If you ride with worn chain rings and cassettes, you will lose power transfer and could even start slipping on the pedals. Only time will tell… Reply. That looks like the quickest and easiest way.
Not much difference, but I then just prefer the higher end product that lasts longer. If you put on new cassete or new chain, you may notice a lot more Reply. Leave this field empty. We use cookies on our website to collect relevant data to enhance your visit.
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You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience. Necessary Necessary. Necessary cookies are absolutely essential for the website to function properly. Post by kode54 on Tue Jul 04, pm i never know when to change the cassette. Post by Calnago on Tue Jul 04, pm My rule of thumb is two chains per cassette. With the 3rd chain I change cassettes.
That's from testing and experiencing skipping if I try to put a 3rd chain on the same cassette. Not sure of the mileage but it's sure a lot less than 17k miles, maybe miles. I have so many wheels etc now that I can't keep track and just generally go by feel Post by Delorre on Tue Jul 04, pm I now have almost km on my record cassette. I only changed the 15t to a new one something like 4 or km ago.
I'm about to change to a new chain that will be the 5th and if no skipp, that chain will probably be the last one for this cassette, so probably around 25 or km. Not bad! I analysed the materials they use steel and ti and it was interesting how low the carbon content of the steel is. Looks like they have and extremely advanced quenching method. The material is also tempered, by the way.
Really impressive material tech there. Post by bm0pf on Tue Jul 04, pm I wonder how many turbo or roller miles are on these high mile cassettes. Like colngo I dont get close. During winter I can wear out a chain in a miles or on my MTB in one ride. Post by Delorre on Wed Jul 05, am bm0pf wrote: I wonder how many turbo or roller miles are on these high mile cassettes.
Post by pdlpsher1 on Wed Jul 05, am I only use Sram cassettes. I just put a new chain 5th on the same cassette and it skipped.
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