Jenny Pryde Posted April 9, 2013 Report Share Posted April 9, 2013 Are the various R1 brake pistons - steel/aly/ceramic interchangeable in all calipers? Link to comment Share on other sites More sharing options...
blur1 Posted April 9, 2013 Report Share Posted April 9, 2013 No. Link to comment Share on other sites More sharing options...
Jenny Pryde Posted April 9, 2013 Author Report Share Posted April 9, 2013 Clear, succinct and well spelt. Link to comment Share on other sites More sharing options...
Adam Posted April 9, 2013 Report Share Posted April 9, 2013 How about between blue spot and gold spot. Are they the same diameters? Link to comment Share on other sites More sharing options...
marcaztls Posted April 9, 2013 Report Share Posted April 9, 2013 How about between blue spot and gold spot. Are they the same diameters? That's actually a good question and one that each time I've had the chance, I forget to physically try out. Manuals say the blue spot calipers have diameters of 30.2 and 27mm, gold spots are listed as 30.1 and 27mm Unfortunately having never actually tried the swap myself, I can't say more than that. Link to comment Share on other sites More sharing options...
Jenny Pryde Posted April 9, 2013 Author Report Share Posted April 9, 2013 How much lighter are the Gold spots, o R1 Guru? Link to comment Share on other sites More sharing options...
blur1 Posted April 9, 2013 Report Share Posted April 9, 2013 How much lighter are the Gold spots, o R1 Guru? What exactly are you wanting/trying to achieve? Link to comment Share on other sites More sharing options...
Jenny Pryde Posted April 9, 2013 Author Report Share Posted April 9, 2013 Trying to further my knowledge. Link to comment Share on other sites More sharing options...
Jenny Pryde Posted April 9, 2013 Author Report Share Posted April 9, 2013 If I can fit lighter pistons, I will. Link to comment Share on other sites More sharing options...
blur1 Posted April 9, 2013 Report Share Posted April 9, 2013 If I can fit lighter pistons, I will. 4 piston or 6 piston? Axiel or Radial? The r1 has a broad range of calipers spanning it's 14+ year existence. Hence my asking specifics. Link to comment Share on other sites More sharing options...
theo Posted April 9, 2013 Report Share Posted April 9, 2013 Non-radial brake caliper mounts arent axial, as that would imply an ofset in the axis of the wheel spindle. Link to comment Share on other sites More sharing options...
Jenny Pryde Posted April 9, 2013 Author Report Share Posted April 9, 2013 4 piston non-radial. Link to comment Share on other sites More sharing options...
blur1 Posted April 9, 2013 Report Share Posted April 9, 2013 4 piston non-radial. Then i'm pretty sure the gold spot calipers have different piston material to the earlier blue spot calipers. Whether there is any 'advantage' or not i'm not sure? Marcaztls probably knows? Link to comment Share on other sites More sharing options...
marcaztls Posted April 9, 2013 Report Share Posted April 9, 2013 Calipers themselves, no different JP. The pistons are much lighter. I can't give you specific numbers, something else I always forget to weigh/measure/check but well worth swapping if possible. They also insulate better heatwise and are much less prone to getting crapped up and sticking. Slightly smoother action but must admit I can't tell in use, just when fitting. Link to comment Share on other sites More sharing options...
blur1 Posted April 9, 2013 Report Share Posted April 9, 2013 Non-radial brake caliper mounts arent axial, as that would imply an ofset in the axis of the wheel spindle. Really........................ Link to comment Share on other sites More sharing options...
Adam Posted April 9, 2013 Report Share Posted April 9, 2013 Mine are blue spot with steel pistons. Quite fancy making up some ali ones and having them hard anodised. Link to comment Share on other sites More sharing options...
blur1 Posted April 9, 2013 Report Share Posted April 9, 2013 Mine are blue spot with steel pistons. Quite fancy making up some ali ones and having them hard anodised. Probably cheaper and easier to use gold ones with the ceramic/composite/whatever pistons and change the gold to blue? Link to comment Share on other sites More sharing options...
Jenny Pryde Posted April 9, 2013 Author Report Share Posted April 9, 2013 Calipers themselves, no different JP. The pistons are much lighter. I can't give you specific numbers, something else I always forget to weigh/measure/check but well worth swapping if possible. They also insulate better heatwise and are much less prone to getting crapped up and sticking. Slightly smoother action but must admit I can't tell in use, just when fitting. Thanks, marcaztls. Much appreciated. This is exactly the info I was after. Link to comment Share on other sites More sharing options...
Jenny Pryde Posted April 9, 2013 Author Report Share Posted April 9, 2013 Edited due to double post. Link to comment Share on other sites More sharing options...
Evilchicken0 Posted April 9, 2013 Report Share Posted April 9, 2013 Mine are blue spot with steel pistons. Quite fancy making up some ali ones and having them hard anodised. I think they're Diamondyze anodised Link to comment Share on other sites More sharing options...
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