Matt Vandart Posted October 8, 2011 Report Share Posted October 8, 2011 I was thinking about these type of BB and was wondering what you thought about them stretching the bb shell out (ovalising it). What do you think? Is it likely do you think? If you have one how has yours held up? Quote Link to comment Share on other sites More sharing options...
WIGAN ?? Posted October 8, 2011 Report Share Posted October 8, 2011 if im honest i really dont see the point, my bmx uses the same kind of thing and iv gone through about 3 bb's in a year and iv had the same one on my trials for about 4 years, i think its just a way for manufacturers to keep costs down with the price of everything going up these days Quote Link to comment Share on other sites More sharing options...
Azarathal Posted October 8, 2011 Report Share Posted October 8, 2011 if im honest i really dont see the point, my bmx uses the same kind of thing and iv gone through about 3 bb's in a year and iv had the same one on my trials for about 4 years, i think its just a way for manufacturers to keep costs down with the price of everything going up these days Lighter, simpler, less to maintain, less cost to make etc. If you have quality bearings and axle it'll last, just like other BB's Quote Link to comment Share on other sites More sharing options...
bike_dummie Posted October 8, 2011 Report Share Posted October 8, 2011 if anything it will last longer due to the large bearings. Quote Link to comment Share on other sites More sharing options...
Greetings Posted October 8, 2011 Report Share Posted October 8, 2011 Is it likely do you think? No, why would it be? Unless I'm missing something. Quote Link to comment Share on other sites More sharing options...
WIGAN ?? Posted October 8, 2011 Report Share Posted October 8, 2011 yeah you would have thought that would be the case but for some reason the bearings die a lot more often than in like a shell bb i think they're crap from personal experience Quote Link to comment Share on other sites More sharing options...
Azarathal Posted October 8, 2011 Report Share Posted October 8, 2011 yeah you would have thought that would be the case but for some reason the bearings die a lot more often than in like a shell bb i think they're crap from personal experience As far as I know bmx bb's are smaller than standard MTB bb's Quote Link to comment Share on other sites More sharing options...
WIGAN ?? Posted October 8, 2011 Report Share Posted October 8, 2011 they vary, 'mid' is the usual size wich is larger than like a threaded bb, and 'spanish' is about the same size as a mtb bb Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted October 8, 2011 Author Report Share Posted October 8, 2011 No, why would it be? Unless I'm missing something. Mostly because the force will be on a smaller area, as in the bearings are narrower than the cups of a mtb bb. Quote Link to comment Share on other sites More sharing options...
WIGAN ?? Posted October 8, 2011 Report Share Posted October 8, 2011 Mostly because the force will be on a smaller area, as in the bearings are narrower than the cups of a mtb bb. thats probably why they break so easy come to think of it Quote Link to comment Share on other sites More sharing options...
Greetings Posted October 8, 2011 Report Share Posted October 8, 2011 That makes sense. But then would you expect a 1,5kg stock frame to last longer than it'd take a bb tube to become oval? Quote Link to comment Share on other sites More sharing options...
Mark W Posted October 9, 2011 Report Share Posted October 9, 2011 I was thinking about these type of BB and was wondering what you thought about them stretching the bb shell out (ovalising it). What do you think? Is it likely do you think? If you have one how has yours held up? We've sold a significant amount of Echo/Zoo frames that use the Spanish BB over the past year - no issues so far (not to mention the Echo Urban 24" and Adamant/Czar frames that used the Spanish BB over 2 years ago). if im honest i really dont see the point, my bmx uses the same kind of thing and iv gone through about 3 bb's in a year and iv had the same one on my trials for about 4 years, i think its just a way for manufacturers to keep costs down with the price of everything going up these days BMX BBs are a lot different. Their bearing life depends a lot on the length of the tube spacer between the bearings. If it's a tiny bit too long or a tiny bit too short then you'll kill bearings really easily. I went through one Spanish BB in about 2-3 years. They're becoming the norm for BMX frames now as they're pretty well proven to work fine. As far as I know bmx bb's are smaller than standard MTB bb's They aren't. A Spanish BB bearing has an outer diameter a little larger than the actual shell of a Euro/MTB BB, let alone the actual bearing itself. they vary, 'mid' is the usual size wich is larger than like a threaded bb, and 'spanish' is about the same size as a mtb bb See above. Mostly because the force will be on a smaller area, as in the bearings are narrower than the cups of a mtb bb. The bearings are a touch narrower than the cup of a BB, but the actual bearings are wider than the normal bearings of a standard MTB BB. After seeing the Spanish BB system used in BMX so much, and seeing how nice and simple it was, I hoped press-fit BBs would become the 'norm' in the trials world. Larger, longer lasting bearings, no concerns about BBs loosening, no concerns about cross-threading or stripping your BB shell, approximately the same weight if not lighter for a stronger BB with bigger bearings. Pretty much exclusively plus points. The only negative at the mo is the lack of options available, but if more companies take up this idea then good things will come of it. Quote Link to comment Share on other sites More sharing options...
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