Reliable Bottom Bracket
 

To anyone that can help,

I am looking for a reliable ISIS bottom bracket. I am a distance rider and need something that will hold up to the miles and the elements. In the past I had always used Shimano equip however my new bike came with a carbon compact crank that I like very much however somehow I managed to shear the bottom bracket in half at about 3500 miles which I found odd especially since I only weigh 150. I average about 300 miles a week depending on what I am training for at the time. Any advice would be appreciated. Stranded in the middle of nowhere with a broken BB is not fun.

TruVativ Giga pipe

too bad Phil Wood doesn't make ISIS bottom brackets, their quality is superb

Truvativ SL.

I have one on my mountain bike, and it's practically indestructable.

Truvativ hasnt been anymore durable than any of the others ive tried, and I broke one today. Retaining ring and bearing cage came right of the right side while I was riding, has about 5500 miles on it. Didnt take long for it to fail either. Bearings were a tad loose a couple weeks ago, today it creaked and groaned a couple times and all off a sudden stuff was falling out the right side.

BB shells arent anywhere near big enough for BB to last very long, axle bearings either. Someone knows of a brand or make that handle 10-15k of messenger work please point me in the right direction.

my ultegra bottom bracket has lasted about 15k mi since last march without a single problem. still in great shape.

I'd love to see photos of this. What was the make?

Go for the cheap and heavily build BBs. I had a bottom of the line shimano do 8500mi (and was still working when I sold the bike it was attatched to), and a truvativ "square" on my roadie that lasted over 6000 when I replaced it for campy.

What kinds of loads are you pulling, or is this a fixed gear thing? That bottom of the line shimano was seeing a rider + load (rack, panniers, and messenger bag) of over 500lbs at times, and around 270-300lbs daily (I was such a ****** at the time), and my daily rounds for commuting was a total of 20mi, everyday....and it held up nicely....actually my problem was managing to loosen the BBs, not damaging them.

Please describe the failure. Where did the BB break (assuming spindle)?

I don't know if there's such a thing as a reliable ISIS BB, but I've been using FSA for some time now. Not being a big fan of FSA, these BBs has in fact prooved themselves to be quite good. They make use of double groove bearings. The Ti axle (if you go for Ti) is also quite thick, using 12mm crank bolts.
http://img.alibaba.com/photo/1025507...l_Bearings.jpg

The bike manufacturer offered to replace the BB with a (FSA) Platinum Pro Ti. I guess I'm going to try it. If I have have another massive failure I'm going back to a Shimano crank.