The Duo V2 lamp includes GoPro style mount to use with the included helmet mount (or other go pro mounts) and a quick release bar mount to work on most handlebars

Light on ounces and heavy on capability

Level TLM and Level Ultimate

which can improve extra strength around the nipple hole

while still creating a rigid crank arm capable of handling pretty much anything you can throw at them

SRAM X-SYNC 2 Steel 12 Speed Direct Mount Chainring - Direct Mount - SRAM Direct Mount - 3mm Boost - Round - 30T - 11-12 Speed - Black - Steel Gift Voucher The Duo V2 lamp includesSRAM X SYNC2 Steel Chainrings. X SYNC 2 Eagle is the next evolution of SRAM X SYNC technology. The aggressive teeth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear life, the X SYNC Eagle design reduces friction and the accumulation of mud, grit and grime. Specs: Weight: 110g (32t), 96g (30t), 133g (28t DM) Material: Steel Finish: Black Compatibility Compatible with all SRAM 1x Direct Mount