180mm Post mount front (7")
Come pre-bled and ready to ride.

It looks to be the same mounting, you get a mount inside the box. I'm sure they're IS standard.

Hope this helps.

I would advise checking with your local bike shop.

No they are not.

You will need to check your fittings on your Rockhopper.

answering my own question, but took a gamble and ordered the kit. Fitted it today, but not bedded it in / tested it yet.

Q1: Not sure yet, but already feel better than the AVIDS from blatting up the road - will confirm in due course

Q2: TBC - doing the W2 @ Afan this weekend

Q3: Yes it does. The kit came will all brackets and parts needed for the conversion. Was easy to install and the lack of metallic noise/brake grinding made a blessed relief from my previous avid juicy 3's

That isnt a question, its a statement. So not sure what info your after..?

In relation to the options you stated, it translates as follows:

The 180 refers to the rotor size - post mount means the brake attaches to the forks - which could mean a particular bracket is needed - the front - refers to the front brake - the right hand - refers to which side the lever will go on the bars

and then the last bit, is a 180 rotor, rear brake, IS mount (internation standard), meaning the calliper attaches to a bracket which attaches to an IS standard pair of holes (so the same the world over) on the frame. Where it says left hand, means the lever will be the one on the left hand of the bar.

I am no pro on this stuff, (and certainly dont work for wiggle - so my view is my own and could be totally wrong) but today swapped the front avid juicy 3 on my rockhopper to a front, IS mount, right hand 203mm julie HP. Installation, including hose shortening was easy. Just need to run it out to bed in the brakes tomorrow and hopefully it should perform really well.

It comes with adapters.

Generally most frames come with IS mounts on the rear so disc brakes also come with IS adapters as standard for rear brakes.

The rear hose length is 1750mm