May 4, 2009
Why Don’t Bmx Street/dirt Bikes Utilize Some Mountain Bike Parts?
For many years now, a lot of BMXers have demanded lighter bikes.
For example, a way to make BMX street/dirt bikes lighter would be to use MTB bottom brackets, cranks, aluminum seat posts. These parts are still strong but also lighter than bmx parts, especially mtb BB’s and cranks.
If BMX bikes used some of these parts, it would be easier to go to a shop and get parts if more parts utilized mtb parts.
Why aren’t manufacturers doing this?
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I think bmx has a much bigger emphasis on strength, simplicity and low maintenance. some MTB parts are lighter but they are also overcomplicated and require constant maintenance and adjusting.
Also remember that the cranks have a larger span and are designed to withstand more than double the stress in BMX.
EXACTLY, BMX bikes don’t have any suspension. But YOU are correct also… I mean, the BMX fads definitely ARE getting lighter but weaker as well. Also, I think the majority of BMX riders need reliable, affordable parts. Most BMX guys don’t have the kind of money MTBers do for their rides. That’s actually y I just recently switched back to BMX from MTB lol. That’s also why the titanium Eastern Grim Reaper never made it in the BMX world. WAAAY too expensive and probably isnt nearly as strong as a solid chromoly frame w/o the holes in the BB and seat tube and all
for some reason, the first half of my response wasn’t posted… wtf???
Anyway, I said that Joby is exactly right. Plus, BMX bikes don’t use any suspension setup. I mean, you don’t see any guys ripping rigid MTBs through rugged DH courses or launching off of rock formations in the desert. The suspension absorbs a LOT of the stress form the cranks and BB and all so they are able to run lighter and weaker.