|Ultegra triple : Looking for more durable chainrings ?||JulienD|
Jan 17, 2003 3:58 PM
|Anyone knows of better quality chainrings compatible with the Ultegra triple crankset ?
With the original shimano chainrings, I'll wear through the middle (42t) within 6,000 to 8,000 kms while the large (53t) and small (30t) can last up to 10,000 kms (less used)... They're aluminium alloy... The standard plated steel cassette will last me 20,000 kms...
The ideal would be to have high quality steel chainrings that will be very resistant to wear since on a loaded touring bike weight is less important than durability... Does anyone know of any ?
|re: Ultegra triple : Looking for more durable chainrings ?||LC|
Jan 18, 2003 4:29 PM
|The steel rings are usually low end stuff and don't last much longer and they are heavy plus don't shift quite right. Stick with the Ultegra.|
|re: Ultegra triple : Looking for more durable chainrings ?||micha|
Jan 19, 2003 6:06 AM
|After every 4000 km or so, rotate your middle ring 72 degrees clockwise from it's original position. That'll spread the wear over the entire circumference and you can squeeze some more km out of it.
When you look at your worn ring closely, you'll see that most of the wear is in a relatively small segment of the ring. That's because peak leg power is applied at a small segment of the pedal circle, and the chainring is fixed in relation to the crank. So it get's "loaded" at the same area every revolution.
As the previous poster said, I doubt if you'll find good steel rings any more. I think the last guy who used them in competition was Fausto Coppi.
|So, do Ultegra rings really wear out this fast?||Kerry|
Jan 19, 2003 5:28 PM
|Maybe not a fair comparison, but my 98 Record rings have nearly 45 K MILES (72K kilometers) on them. They're not worn out. Is this experience (gone in 5K miles) typical of Ultegra? If so, it seems a false economy to get this grade of parts. I would have had to buy 9 sets of rings to get this far.|
|So, do Ultegra rings really wear out this fast?......my opinion.||davet|
Jan 20, 2003 4:30 AM
|In a post on another forum, Julien asked this same question about his Ultegra rings. He went on to say "(... I wipe and lube the chain about every month (some 1,500 to 2,000 kms}..." Apparently he is a very high mileage rider, but doesn't maintain his gear as much as he should. I don't think it's a Shimano issue as much as it is a maintenance issue.|
|Lube chain every 1200 miles?||Kerry|
Jan 20, 2003 4:16 PM
|Might as well just throw them in the trash right out of the box. What a waste of equipment. Thanks for the clarity on this.|
|No, there must be extenuating circumstances here||pmf1|
Jan 21, 2003 7:00 AM
|I've ridden 10's of 1000's of miles on Ultegra rings. This guy is doing something out of the ordinary, like lubing with sand.|
Jan 21, 2003 6:44 PM
|If you had the endurance to follow this thread on "the other forum," you would have seen this guy asking for a titanium chainring round about yesterday. I think we're dealing with one of those peculiar ideas here ("aluminum is baaaad!")
I have a suggestion for the guy: buy and mount three identical Ultegra rings, say, 39 T. Then shift from ring to ring every 20 miles or 90 minutes (whichever occurs first). Your ring mileage should triple.
Or, like Kerry says, buy three rings and throw them away.