203mm adapter, 203 rotor, but it literally doesn't work. Fork is supposed to be 203 compatible. Fox34 factory.
by pizzaman1995
203mm adapter, 203 rotor, but it literally doesn't work. Fork is supposed to be 203 compatible. Fox34 factory.
by pizzaman1995
6 Comments
Most likely you need a 160-203 adaptor you have a 180-203
Edit – should probably also ask which model it is. Because as far as I know gold logo only came out this year, and they are 180mm minimum rotor except I think step cast which is 180mm maximum rotor.
So, that adaptor is for mounting a 203 mm rotor to a “native” 180 mm fork. It would appear that your fork is native 160 mm, so you will need a different adaptor.
You can [use this chart (pdf link)](https://si.shimano.com/en/pdfs/dm/SMMA00A/DM-SMMA00A-01-ENG.pdf) to find the correct adaptor, Shimano says it’s the “SM-MA-F203P/P” (note the lack of “M” at the end).
Also, be sure to look up the max rotor size for that fork.
Bolts are too long and everything is loose and dangerous..??
Or missing washers. Mybe bolts too long or not screwed in all the way. I can see threadlock which would indicate they are not screwed all the way in. But if they are there too long.
If you have bolted the brake as far as it will go, then you have the wrong adapter for attaching brake to fork. Wrong size bolts may also be a problem.
You need a 180mm rotor and a 20mm adaptor, or you need a 43mm adaptor on your current rotor.
It looks like you currently have a fork made for 160mm rotors, a 23mm adaptor, and a 203mm rotor.