[Closed] Are these flat mount or post mount calipers (ad says post but they look flat)

Post on adapters

These are flat

So they are post mount? And i need flat mount adaptors?

thanks

They are definitely post mount. You'll need one of these https://www.chainreactioncycles.com/shimano-rear-post-to-is-disc-brake-mount-adaptor/rp-prod13749 to fit it to an IS (flat) fitting.

They are post and won't fit on a flat mount frame.

You’ll need one of these https://www.chainreactioncycles.com/shimano-rear-post-to-is-disc-brake-mount-adaptor/rp-prod13749 to fit it to an IS (flat) fitting.

That doesn't look right to me, flat mount has two holes vertically through the chain stay, similar to post, just a different spacing. That adaptor swaps the orientation of the fixing bolts?

Underside of flat mount rear calliper:

[url= https://live.staticflickr.com/65535/51846511250_69e29bce53.jp g" target="_blank">https://live.staticflickr.com/65535/51846511250_69e29bce53.jp g"/> [/img][/url][url= https://flic.kr/p/2mZuVuo ]Untitled[/url] by [url= https://www.flickr.com/photos/brf/ ]Ben Freeman[/url], on Flickr

top side..

[url= https://live.staticflickr.com/65535/51846511260_16b73acdce.jp g" target="_blank">https://live.staticflickr.com/65535/51846511260_16b73acdce.jp g"/> [/img][/url][url= https://flic.kr/p/2mZuVuy ]Untitled[/url] by [url= https://www.flickr.com/photos/brf/ ]Ben Freeman[/url], on Flickr

So is the only difference the spacing? are these what i need?

https://www.aliexpress.com/item/1005001733739566.html?spm=a2g0o.productlist.0.0.49504edbR0faJ4&algo_pvid=b8caff09-17e2-4ffe-b8a3-016b90b3ab93&algo_exp_id=b8caff09-17e2-4ffe-b8a3-016b90b3ab93-1&pdp_ext_f=%7B%22sku_id%22%3A%2212000017384017805%22%7D&pdp_pi=-1%3B1.39%3B-1%3B-1%40salePrice%3BEUR%3Bsearch-mainSearch

or similar..

They are definitely post mount. You’ll need one of these https://www.chainreactioncycles.com/shimano-rear-post-to-is-disc-brake-mount-adaptor/rp-prod13749 to fit it to an IS (flat) fitting.

IS mount is NOT flat mount, that adaptor is for the really old school IS mount which is rarely ever seen now on new bikes.

This will allow fitting of PM caliper on a flat mount frame.

https://www.chainreactioncycles.com/clarks-anodised-flat-to-post-mount-adaptor/rp-prod179773

Ah, sorry, cross-purposes there! Now I see what you mean! Those are the very adapters.

I have a pair of new TRP adapters that I never used as I changed the caliper over to flat mount.

They are front and rear 160mm FF2-F160 & FR2-R160

Flat mount frame to post mount caliper - let me know if you want them?