Crankset

Just bought a Shimano XTR M960 (175mm) chainset on eBay:

http://www.ebay.co.uk/itm/130768279756

The plan is to modify the cranks to run a single chainring in the middle position.

Favourite chainring is currently a 46 tooth Shimano DXR CR80:

http://www.chainreactioncycles.com/Models.aspx?ModelID=35272

Basically, it's a Saint downhill ring for 1x9/1x10 drivetrains. It has no ramps or pins. It's also available in 38T, 41T, 42T, 43T, and 44T.

The middle mounts of the XTR960 crankset are 102mm pcd, the DXR chainring is 104 pcd. Plan A involves four custom (titanium?) chainring bolts; plan B calls for a custom (titanium?) chainring instead of the DXR.

As (used) bearings are included, first thing I'll be doing is checking for compatibility issues between the road frame and the MTB bottom bracket / cranks.