He grew up in Los Angeles, California, and started climbing at the bouldering hot spot of Stoney Point in the northern San Fernando Valley.

[3] Bachar was first noted for his climbs in Yosemite with his unroped ascents of New Dimensions (5.11a) and The Nabisco Wall, a three-pitch affair (Waverly Wafer (5.10c), either Wheat Thin (5.10c) or Butterballs (5.11c R), and Butterfingers (5.11a) as the final pitch).

Bachar was a contemporary of John Long and Tobin Sorenson in a group they called the Stonemasters putting up daring new routes in the Idyllwild, California, area.

In 1986, Bachar and Peter Croft made a link up of El Capitan and Half Dome, climbing a vertical mile in under 14 hours.

[9] In the 1990s, Bachar free soloed Enterprise (5.12b) in the Owens River Gorge and The Gift (5.12c) at Red Rocks for the Masters of Stone video series.

Bachar lived in Mammoth Lakes, California, and was the director of design of rock climbing shoe manufacturer Acopa International LLC.