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MTB ISIS bottom bracket choices
Going through MTBR.com, there are few parts of a bike that have been more
problematic than the bottom bracket. Numerous reports of short-life, abbreviated rides because of ISIS bottom bracket failure infest MTBR, and it seems that unless you have a Phil Wood, your BB will find an untimely death in minutes. So what's the verdict? Are ISIS bearings too small? Are there any that don't develop play in short periods of time? Phil Wood owners may just be pussyfooting the BB and thus, it looks like it has a good track record, but it in fact may not be. Plus, the ones that buy PW products usually aren't your typical mountain biking type... i.e. they're fookin expensive. -- Phil, Squid-in-Training |
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MTB ISIS bottom bracket choices
---------- In article , "ZeeExSixAre" wrote: Going through MTBR.com, there are few parts of a bike that have been more problematic than the bottom bracket. Numerous reports of short-life, abbreviated rides because of ISIS bottom bracket failure infest MTBR, and it seems that unless you have a Phil Wood, your BB will find an untimely death in minutes. So what's the verdict? Are ISIS bearings too small? Are there any that don't develop play in short periods of time? Phil Wood owners may just be pussyfooting the BB and thus, it looks like it has a good track record, but it in fact may not be. Plus, the ones that buy PW products usually aren't your typical mountain biking type... i.e. they're fookin expensive. -- Phil, Squid-in-Training I'm well over 200 lbs. The Truvativ BB lasted about 2 months before it developed play in the bearings, +- 60 miles a week. The Race Face has been hanging in there since last summer but won't stay tight in the shell despite repeated torqueing to spec. Both bb's were the x country models. Don't know about the PW. Paul |
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MTB ISIS bottom bracket choices
On Sun, 11 Apr 2004 23:20:11 -0400, ZeeExSixAre wrote:
Going through MTBR.com, there are few parts of a bike that have been more problematic than the bottom bracket. Numerous reports of short-life, abbreviated rides because of ISIS bottom bracket failure infest MTBR, and it seems that unless you have a Phil Wood, your BB will find an untimely death in minutes. So what's the verdict? Are ISIS bearings too small? Are there any that don't develop play in short periods of time? Most of the stories I've heard involve short lifespan. Is that the result of smaller bearings? The current concensus on STW is that much is dependent upon the installation and how well they are maintained. People who have had their frames' BBs faced and/or installed them on 'better' frames seem to have had fewer problems. Similarly, regularly pulling them out and making sure there's no moisture in the BB shell appears to help. I've been running an RF Evolve FR for over a year with no problems. Having said that, it started making some odd noises last time I was out... |
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MTB ISIS bottom bracket choices
---------- In article , Chris Phillipo wrote: fookin expensive. -- Phil, Squid-in-Training I'm well over 200 lbs. The Truvativ BB lasted about 2 months before it developed play in the bearings, +- 60 miles a week. The Race Face has been hanging in there since last summer but won't stay tight in the shell despite repeated torqueing to spec. Both bb's were the x country models. Don't know about the PW. Paul What many people don't realize is that Truvative ISIS BBs have ajustable bearing races. With a pair of Truvativ lockring tools you can easily adjust out the play. The bearings are even sericable if you want take completely apart. -- _________________________ Chris Phillipo - Cape Breton, Nova Scotia http://www.ramsays-online.com You're right I didn't know that. I'll take another look at truvativ. I might even have that bb laying around. Paul |
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MTB ISIS bottom bracket choices
"bomba" wrote in message news On Sun, 11 Apr 2004 23:20:11 -0400, ZeeExSixAre wrote: Going through MTBR.com, there are few parts of a bike that have been more problematic than the bottom bracket. Numerous reports of short-life, abbreviated rides because of ISIS bottom bracket failure infest MTBR, and it seems that unless you have a Phil Wood, your BB will find an untimely death in minutes. So what's the verdict? Are ISIS bearings too small? Are there any that don't develop play in short periods of time? Most of the stories I've heard involve short lifespan. Is that the result of smaller bearings? The current concensus on STW is that much is dependent upon the installation and how well they are maintained. People who have had their frames' BBs faced and/or installed them on 'better' frames seem to have had fewer problems. Similarly, regularly pulling them out and making sure there's no moisture in the BB shell appears to help. I've been running an RF Evolve FR for over a year with no problems. Having said that, it started making some odd noises last time I was out... The spindle is big, and so there is less room for bearings. Now if square taper bearings are larger and have less problems, I can see that being the rectifying issue. But I just don't know... I guess BBs are a replaceable item. Now that Chris mentioned that Truvativs are serviceable, however... -- Phil, Squid-in-Training |
#6
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MTB ISIS bottom bracket choices
"ZeeExSixAre" wrote in message ... "bomba" wrote in message news On Sun, 11 Apr 2004 23:20:11 -0400, ZeeExSixAre wrote: Going through MTBR.com, there are few parts of a bike that have been more problematic than the bottom bracket. Numerous reports of short-life, abbreviated rides because of ISIS bottom bracket failure infest MTBR, and it seems that unless you have a Phil Wood, your BB will find an untimely death in minutes. So what's the verdict? Are ISIS bearings too small? Are there any that don't develop play in short periods of time? Most of the stories I've heard involve short lifespan. Is that the result of smaller bearings? The current concensus on STW is that much is dependent upon the installation and how well they are maintained. People who have had their frames' BBs faced and/or installed them on 'better' frames seem to have had fewer problems. Similarly, regularly pulling them out and making sure there's no moisture in the BB shell appears to help. I've been running an RF Evolve FR for over a year with no problems. Having said that, it started making some odd noises last time I was out... The spindle is big, and so there is less room for bearings. Now if square taper bearings are larger and have less problems, I can see that being the rectifying issue. But I just don't know... The Spanish BB being developed in BMX by flybikes looks very interesting, I could see it crossing over to MTB's if it takes off. http://flybikesbmx.com/noticias/spanishbb02eng.htm Steve. |
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