FamilyBiker

yeah,postmount would be a start,as mentioned. i dont have the 3(!) pm/is adapters i snapped in 4 weeks or so(honestly) anymore,otherwise i`d show them. most of the brake(that sounds funny haha) turned backwards with the disc taking 2/3 of the adaptor with it,the other 1/3 was left on the forwards facing mounting hole together with one mounting eye of the snapped caliper. i was practising backweelhops! the cracking marks on the adapters showed signs of bending,like if you put the front in a vice and bend the rest until it cracks. first brake was a year old,other two survived 1 and 2 weeks first brake had 160 rotor,others 180...(thought it´d change the force transmission between rim and disc to save the caliper)everything was straight and faced and set up correct. parts which bend before cracking are due to forces in a "wrong" direction,in this case the disc tried to rotate the adapter,hence the idea with the diagonal setup,it´d put the force over the lenght of the adaptor i think there is no trials specific adaptor,and the moto ones are symmetrical afaik

are they trials specific,like as hopes???

i can only imagine how drunk the cameraman must´ve been to not get the fact the half evening was filmed with that smeared lense... lol pretty cool vid

i didnt say the rotor is the major problem in trials,i just commented the exploded rotor. problem are the mounts and the rotor together,both designed for forwards directed forces,a good mount with a symmetrical rotor would be good imo. maybe the dez company makes their homework in physics (and reading lessons)before making jokes about other companies lol a rim brake is the biggest disc brake you can get with a mount that works,for a reason it had decades of use now hopes rotors arent trials specific,their calipers are,theyre beefed up in the areas an i.e. old 4piston deore xt would crack,the mounting eye on the caliper,and hopes have no postmount adaptors afaik,wich is one of the weakest points a disc can have. when you brake with a rear disc in mtb use,the caliper pushes on the front mount and pulls on the rear one(i mean the mounting holes of one mount),and IS2000 mounts are designed for that force induction. for trials a new mount,maybe between the seat- and chainstays,with diagonal orientation,viewing the brake from the side,would be good in sense of compensating both forces,forwards and backwards with the same efficiency. that mount would be expensive to develop,heavier(stay tubes would have to be asymmetrical and with thicker walls) and a pain in the arse for mass production. industrial manufacturers wait for demand of many customers before changing anything,change is lost money. i did it again,went a bit OT,sorry to the threadstarter edited for spelling correction at last haha

taring end feathering was common much sooner in history lol was a penalty for thieves and so on haha

forget repair welding,gaffer tape is the new welding! oh wait...

wtf?^^

warm weather to come,yay!

looks nice,but its a dirt bike with too short forks to be honest. :wink2:

that colour scheme is nicer than the original one imo. new white saddle,perfect!

thats exaggerated in trials.youd hardly get noticeable centrifugal forces from riding trials i think. for example if your 24" rim and tyre,lets take the spokes out of the calculation,have 1kg.just hypothetic. youd have to get a rotating speed of 5 per second to get a resistance of 10kg angainst directional change. thats approx.35km/h i dont ride trials in such speeds lol

i think a "training bike" should be heavier,to resist all the abuse,thats for normal riders too imo. my bike has 11,56kg,and thats more than light enough. if you ride comps,you´d get even higher when using a light bike,and youre used to the heavy one i think but i got no evidence and just one bike,so its just an opinion

lets just stop being offtopic,it was about him keeping his 24 with a rear maggie(i assume :wink2: ) or getting a mod with dd(oh no!) thanks bing,that was so necessary,that it saved my evening from being boring like i had broke my foot joking.

these are not bonded in epoxyd... and you wouldnt want to weld carbon fibers together rather than complete tubes, right?

i think carbon welding would be funny to see....lol it doesnt even conduct electricity,we would see nothing but the welders head smoking haha

not the whole text was pointed to the pic,just the comment about the mount. facepalm

too sad, if more people had the demand for new ideas/technical facts,there´d be more change of manufacturers behavior. look at carbon,this stuff was blown on the market at times when you couldnt trust it at all,because enough people wanted to spend money on it... that mount above looks promising imo,the more horizontal the caliper would be to the disc,the more equal the forces in forwards and backwards braking would be. i dont hate at disc brakes in general,its just the fact that not a single trials manufacturer even does research on an innovation for the rear wheel,as it seems.its like with all things mtb riders already had on their bikes,before they reached the trials community,like isis or oversized bars

dez, i finished with 1.49 in my technician class, thats a in american. whats your qualification grade? sorry i dont want to start an argument,but in germany we have the hardest apprenticeship level for bicycle technicians in europe,thats pretty insulting to me. if you know the force paths running through the disc,youll see that nearly all discs are designd to stop a forwards moving vehicle. for trials theres different force induction,hence there COULD BE the need for dedicated discs,i think. whats your point on acting funny at this? i´m just trying to give professional input to the topic

diy is the way to go! mine only fits on a custom mount under the chainstay,but i used the exact same thing ziptied to the chainstay for years!

nice vid but

something like that would work longer/more secure on a rear wheel its a front disc for motorcycles though

your video titles always make me smile,but watching them lets my jaw drop haha

when i click on either one it gives me an error,is this temporary or is my bike lost ?

schwalbe av10D for the rear,the front doesnt matter :wink2: