AkuskaUK Posted December 25, 2012 Report Share Posted December 25, 2012 Hi everyone, first of all; Merry Christmas! I have a question, the "press fit" ISIS BB that comes installed on the Zoo! Piranha 2012, can it be removed and changed for a normal BB? I have recently put in a Neon Carbon BB on my Pitbull due to the old one dying and the fact that i have square taper Middleburns. I dont want to lose the burns because of my love for their strength and design. Can i just swap the BB's over? Thanks in advance! Quote Link to comment Share on other sites More sharing options...
customrider-Rhys Posted December 25, 2012 Report Share Posted December 25, 2012 nope afraid not, the Spanish bearing are press fitted so there's no threads in there to install a normal bb Quote Link to comment Share on other sites More sharing options...
trials hoe Posted December 25, 2012 Report Share Posted December 25, 2012 diameter of the bb tube is way bigger on the press fit design, think you may be able to get a converter though like some dmr wonder cups might work maybe? Quote Link to comment Share on other sites More sharing options...
Sponge Posted December 25, 2012 Report Share Posted December 25, 2012 Not 100% on how well this'd work, but you could try and get those cups machined down to Spanish outer diameter so it'd fit the frame. Overall cost shouldn't be too much I don't think. Better call: just let go of the 'burns and switch to ISIS Quote Link to comment Share on other sites More sharing options...
AkuskaUK Posted December 25, 2012 Author Report Share Posted December 25, 2012 Ok, thanks for the help so far... but, what happens when i need a new BB? new frame? Quote Link to comment Share on other sites More sharing options...
customrider-Rhys Posted December 25, 2012 Report Share Posted December 25, 2012 (edited) on these bb's you can replace all the parts, the bearings are removable and you can just fit new ones, same with the axle i belive. plus the bearings are cheap as chips, like £12 a pair or something Edited December 25, 2012 by customrider-Rhys 1 Quote Link to comment Share on other sites More sharing options...
AkuskaUK Posted December 25, 2012 Author Report Share Posted December 25, 2012 Brilliant! Thank you all, ive found a place i an get some black ISIS burns from now too 2 Quote Link to comment Share on other sites More sharing options...
Dan Jones Posted December 25, 2012 Report Share Posted December 25, 2012 You might want to check the Middleburns have enough offset to clear the frame. It might not be a problem, but on my Echo Pure it was. Quote Link to comment Share on other sites More sharing options...
AkuskaUK Posted December 25, 2012 Author Report Share Posted December 25, 2012 Ah, good point! Quote Link to comment Share on other sites More sharing options...
Blake Posted December 26, 2012 Report Share Posted December 26, 2012 You might be better off with a trials specific crank now dax, as not sure the burns will fit with the +50bb. Quote Link to comment Share on other sites More sharing options...
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