IS-Mount to Flat Mount Adapter?

[brewsmith]

I am still a disc brake neophyte, but looking to figure out if there is an adapter I can use for this fork which has an IS mount for use with my Hope RX4 flat mount calipers or if I would need to use a different caliper. Most of the adapters I see are post to flat mount, but is seems like IS is a different standard?

[prototoast]

https://www.assolutions.ca/shop/adap...-for-is-frame/

Doesn't work on all frames/forks, though.

[brewsmith]

Originally Posted by prototoast

https://www.assolutions.ca/shop/adap...-for-is-frame/

Doesn't work on all frames/forks, though.

"Tested with Shimano, SRAM and Campagnolo flat mount calipers. 160 mm specific calipers like the ones made by Hope And Campagnolo will increase the rotor size by 20 mm. Front specific calipers like the ones made by Hope And Campagnolo will not work with these adapters."

Yeah, looks like it wont work with these calipers

[brewsmith]

As an alternative, does anyone know if a Hope Tech 3 V4 caliper would work with Sram Red levers?

[dolface]

Originally Posted by brewsmith

As an alternative, does anyone know if a Hope Tech 3 V4 caliper would work with Sram Red levers?

I don't know if the masters on the SRAM levers drive enough fluid for V4s, pretty sure they will but I haven't tested it. (I'm running Force and RX4+ and they work great).

(Because I'm a nerd: the levers are Tech 3, the calipers are V4)

[brewsmith]

Ended up going with the x2 calipers. I am hoping to get them installed today and will report back on the performance once I get them setup/

[brewsmith]

Just an update, installed the X2 caliper on the front over the weekend and I can confirm it works well. I honestly cant tell the difference in feel between it and the R4s. I reached out to Hope originally, and this was there reply:

Thank you for your email. We tried the X2 with a mechanical Sram lever and, while there was quite a lot of lever travel, it did work to begin with. The only concern would be reservoir capacity, it might not hole enough fluid to cope as the pads wear.

Oddly, it was the opposite case for me. When I did the inital bleed, I had too much liquid in the system and could not get enough return on the pistons. After letting a little fluid drip out the caliper bleed port, things we're right as rain. I'll report back after some more significant mileage on the long term use. Cheers!