Joined: Feb 2006
Posts: 571
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From: Canberra, Australia
Bikes: Salsa mtb * 3, Intense mtb * 1, Abeni SS rd * 1, Salsa road/touring * 2, Trek Damn one * 1, Vintage/projects * many
It's an Isis bottom bracket and crank. You'll need an Isis crank puller and Isis bottom bracket tool. These are pretty common. You then replace the bottom with one the same measurement as the one you removed. If will probably be a 73 x 113.
- Joel