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I have just picked up a used Hex fitted with Hope Tech3 brake levers, Hope Trial Zone calipers with red pads and Hope V2 discs but I am having some issues. Firstly, can anyone tell me whether the calipers should have a spring to push back the pads or do they rely on reduced oil pressure to pull them back when releasing the levers? Secondly I found when braking at above walking pace there was a brrrrr noise/vibration coming from the wheels. I could see that the outside diameter of the discs (on the lobes) had obviously been rubbing as the steel was shiny in places as though it had been filed. See the photo. When removing the calipers I could also see that the aluminium anodising had been warn away at the base of the slot in the caliper where the disc had been touching it. These are 180mm Hope discs fitted with Hope calipers on standard post mounts of an Inspired frame and fork with no spacers. According to the Hope site this is as it should be so why are the discs rubbing the calipers at the outer rim? I can fix the problem with a washer on both post mounts to pack the calipers off but this just seams wrong, has anyone else had this problem? Finally, it is also creating quite a challenge to centralise the discs in the calipers and partly why I asked the first question about a return spring as my pads do not appear to be retracting far when releasing the lever. I have wound out the bite point adjuster as far as it will go but I suspect there may be too much brake fluid in the system. My next option would be to clean and bleed them as per the Hope instructions to see if the pistons are sticking.   This is my first trials bike and some of the answers may be "that's just what it is like on a trials bike" but I suspect the discs fouling the calipers is just wrong. Looking for some guidance from the forum members.

If you bought the cracks for the link you provided,  the bb should be included with the sale 

I saw Inspired chart about this but i just want to know if any(for example) 160 cm tall rider here in this forum got a Hex and how is like or this bike is just for tall riders only? Thank you anyway.

This should answer your question hopefully:  https://www.inspiredbicycles.com/upload/site/www/main/doc/2022-height-chart.jpg

I would really like to take my two boys to see the Drop N Roll guys, I know they where at the world cup last weekend  We have seen The Clan which is great to see, especially with you @Ross McArthur😉