This is Hanger 38 from Wheels Manufacturing for compatible bike models see list below. Features: CNC machined 6061 aluminum Black anodized finish Includes (1) M8 Chainring Bolt Compatible Bike Models: Avanti Aggressor - 2009-2010 Aggressor 1, 2, 3, 29, 24 - 2011 Atomic - 2010 Atomic Escape - 2009 Barracuda - 2009-2010 Competitor Series - 2010 Competitor Team 1, 2 - 2009 Discovery - 2009 Discovery 1, 2 - 2010 Discovery 1, 2, 3 - 2011 Expedition - 2009 Explorer 1, 2 - 2011 Forte 1, 2 - 2010 Forte 1, 2, 3 - 2011 Hammer - 2009-2010 Illusion - 2009 Metro 1 - 2010 Metro 1, 2 - 2011 Metro 700, 26 - 2009 Montari - 2009-2010 Pioneer - 2009 Ridge Rider - 2009-2010 Scratch - 2010 Scratch 29 - 2010 Scratch Series - 2009 Spirit 1, 2 - 2009-2010 Torrent 1, 2, 3 - 2011 Vapour 1, 2, 3 - 2011 Bianchi Camaleonte - 2011, 2013 Camaleonte 1 - 2010 Camaleonte 2 - 2010 Camaleonte Sport - 2012 Tycoon Alloy - 2003 Tycoon Carbon - 2003 Via Narone 7 - 2012-2013 Blue Ryno - Boardman MTB Pro Carbon - - Commencal Combi VB / Disc - 2001-2004 Cube .- - .- Diamondback Calico - 2016 Calico Sport - 2016 Clarity - 2009-2016 Clarity Series - 2009-2015 DB-4 - 2006 DB-8 - 2006 Hard Tail Frames - Vertex Team/ Race/ Pro/ Comp/ Sport/ XC/ Basic - 2006 Insight - 2008-2012, 2015-2016 Insight Disc - 2014-2016 Insight Series - 2009-2011 Lustre Two - 2009-2012 Outlook - 2004-2006 OVERDRIVE - 2016 OVERDRIVE D SMU - 2012-2013 Peak - 2006-2008 Podium Reactor Dual - 2001 Response 29 - 2013-2014 Trace Series - 2010-2016 Twentyfour/ 24dirt - DB-8 - 2006 Felt Alloy Hardtails - 2000 Cross - 2004 Focus Black Forest - 2006-2008 Black Hills - 2006 Fat Boy - 2006 Medusa Ladies - 2007 Northern Lite - 2006 Vamp Ladies - 2007 Zonukwa - 2007 Fuji Mt Fuji - 2008-2009 Professional - 2009 Team Issue - 2008 Gary Fisher Joshua - 2001 GT Chucker 20 inch - 2008 Chucker 20, 24 - 2007 Chucker 24 inch - 2008 Traffic - 2011 Traffic Series - 2010 Transeo - 2011-2015 Transeo 1.0, 2.0, 3.0, 4.0 - 2008-2009 Transeo XR - 2012-2013 Haro Escape - 2001-2004 Escape 7.2 - 2000 Express Series ...