Eddyboy123 Posted May 8, 2011 Report Share Posted May 8, 2011 (edited) Hey everyone I am looking at upgrading the size of the disk brakes on my mountain bike (Mongoose Tyax Super '09). This bike came with 160mm rotors so I am looking at upgrading to 203mm's at the lowest price possible (hopefully only needing to buy adapters and rotors, not callipers). Already have a bent rotor so might aswell What different adapters would I need to buy and how do I need to fit them? Front: Back: Back 2, please note the adapter already there: Any help would be much appreciated Thanks James E Edited May 8, 2011 by Eddyboy123 Quote Link to comment Share on other sites More sharing options...
ogre Posted May 8, 2011 Report Share Posted May 8, 2011 cheap rotors here... and cheap adapters here... why do you want bigger rotors? why 203mm? if you bent a 160, theres more chance of you hitting a 203mm rotor... they're heavier to. go for 180, most trials riders get the performance they need out of 180/185. 203 is excesive unless your riding DH and your having issues with over heating...for the front you'll want a PM-PM F180 (or F200...) for the year you'll want an IS-PM F180 (or 200) Quote Link to comment Share on other sites More sharing options...
Eddyboy123 Posted May 8, 2011 Author Report Share Posted May 8, 2011 (edited) cheap rotors here... and cheap adapters here... why do you want bigger rotors? why 203mm? if you bent a 160, theres more chance of you hitting a 203mm rotor... they're heavier to. go for 180, most trials riders get the performance they need out of 180/185. 203 is excesive unless your riding DH and your having issues with over heating... for the front you'll want a PM-PM F180 (or F200...) for the year you'll want an IS-PM F180 (or 200) thanks for the advice, probably will just go to a 180mm. the reason is I want a bit more stopping power. Edit: also does the shape of the rotor make much difference? and for rear do you mean IS-PM R180 not F180? Edited May 8, 2011 by Eddyboy123 Quote Link to comment Share on other sites More sharing options...
haydon_peter Posted May 8, 2011 Report Share Posted May 8, 2011 I also wouldn't want to run 203 rotors with quick release axles! The forces a disk brake has on an axle can cause it to move around in the drops outs. These forces would be much higher with a 203 rotor so I personally wouldn't run 203 rotors without bolt through axles! I would personally go 180 front and 160 rear, this will be more than enough for everything apart from DH. Saying that, I ran that size rotor setup on Shimano XT brakes in the Alps for 1 week and didn't have any major braking issues! Quote Link to comment Share on other sites More sharing options...
Eddyboy123 Posted May 8, 2011 Author Report Share Posted May 8, 2011 (edited) I also wouldn't want to run 203 rotors with quick release axles! The forces a disk brake has on an axle can cause it to move around in the drops outs. These forces would be much higher with a 203 rotor so I personally wouldn't run 203 rotors without bolt through axles! I would personally go 180 front and 160 rear, this will be more than enough for everything apart from DH. Saying that, I ran that size rotor setup on Shimano XT brakes in the Alps for 1 week and didn't have any major braking issues! Yeah thats what i was thinking now, just need to find some cheap rotors Edit: i'm thinking these rotors: http://www.readytoridecycles.co.uk/180mm-alligator-starlite-disc-brake-rotor-218-p.asp Edited May 8, 2011 by Eddyboy123 Quote Link to comment Share on other sites More sharing options...
Eddyboy123 Posted June 22, 2011 Author Report Share Posted June 22, 2011 Can anyone give me a hand and help find me some new pads online? and also how do i change the pads, thought it's better to get new ones with new disks Quote Link to comment Share on other sites More sharing options...
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