Originally posted by rtsy
As a follow up to my post on V-brake vs. Disc, here's another one. Can mroe experienced folks kindly please share your experiences and insights on the above?
Thanks!
Originally posted by Alnamvet
Unless you are a 6 figure mtb pro racer, the mechanical discs like Hayes using your existing brake cables are more than adequate; for me, my xtr rim brakes are more than I need, but going disc appears to be more for techno weenies who are desirous of one upping the neighbors. Just ride everyday, enjoy, and you'll soon forget the latest and greatest gimmicks out their.
Originally posted by iamdigital
in case you have not noticed cantilevers and v-brakes destroy your rims.
Oh puhleeze! Nobody I ever heard of or met anyone who ever wore out a set of rims with their brakes. Speaking as a mechanical engineer the sort of miles you would need to do to wear hardened (sometimes anodized) alloy rims to the point of failure with rubber brake blocks would see your whole bike wear out several times over. People who imagine that their latest wheel failure is due to their brakes wearing away sufficient sidewall to cause failure are ignoring more probable cause like meybe hitting solid objects at speed or going really fast over rough ground and exceeding the wheels design limitations.
Of course if you dont replace the brake blocks when they have worn down and are hitting the rim with metal to metal contact then yeah the rims will fail! That is outside the performance criteria of the rim or brake block and is proof that no system can be designed to be fool proof.
Back to the thread; I dont own disks but when I upgrade or replace my bike it will have hydro disks. Cant see the point of swapping one cable system for another, cables stretch and require adjustment regularly, hydros like on all my motorbikes never do that.
Originally posted by jmitting
Originally posted by iamdigital
in case you have not noticed cantilevers and v-brakes destroy your rims.
Oh puhleeze! Nobody I ever heard of or met anyone who ever wore out a set of rims with their brakes. Speaking as a mechanical engineer the sort of miles you would need to do to wear hardened (sometimes anodized) alloy rims to the point of failure with rubber brake blocks would see your whole bike wear out several times over.
You need to start hanging around people who really ride their bikes then. I've seen many worn out and radially split mtb rims.
Originally posted by jmitting
Originally posted by iamdigital
in case you have not noticed cantilevers and v-brakes destroy your rims.
Oh puhleeze! Nobody I ever heard of or met anyone who ever wore out a set of rims with their brakes. Speaking as a mechanical engineer the sort of miles you would need to do to wear hardened (sometimes anodized) alloy rims to the point of failure with rubber brake blocks would see your whole bike wear out several times over. People who imagine that their latest wheel failure is due to their brakes wearing away sufficient sidewall to cause failure are ignoring more probable cause like meybe hitting solid objects at speed or going really fast over rough ground and exceeding the wheels design limitations.
Of course if you dont replace the brake blocks when they have worn down and are hitting the rim with metal to metal contact then yeah the rims will fail! That is outside the performance criteria of the rim or brake block and is proof that no system can be designed to be fool proof.
Back to the thread; I dont own disks but when I upgrade or replace my bike it will have hydro disks. Cant see the point of swapping one cable system for another, cables stretch and require adjustment regularly, hydros like on all my motorbikes never do that.
well, my rims are definitely scalloped from the brake pads- i think it has to do with riding in wet/muddy conditions, cause i can hear a difference on those kinds of days. add dust and sand and moisture in the equation and you can get some wear. i don't have any problems yet with the rims but they are worn down. they are 4 years old though.
Originally posted by jmitting
Hmmm, pattern occuring here, wet place + V-brakes = wear on rim sidewall. I could be wrong I suppose, unlikely as it seems. What can I say I live in a dry place and getting dryer every year too. Which could be why I've never seen or even heard of the problem except here in these forums.
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