Check the listing for details. 3-Bolt DM Boost HG+ 32T Chainring - Machined 7075 Aluminum, Black. Color: Black, Condition: New. Listed at 70.32 USD. Built for riders who expect more from every climb, descent, and long-haul ride, the Wheels Manufacturing MTB 3-Bolt Direct Mount Chainrings deliver the perfect balance of performance, durability, and precision. The Hyperglide compatible chainrings provide improved chain engagement, cleaner shifting, and confidence under power. CNC-machined from premium 7075 aluminum in Colorado, these chainrings are designed to keep your 9, 10, 11, and Hyperglide+ 12-speed drivetrains running smooth, quiet, and reliable on any terrain (NOT compatible with T-Type chains). Each ring is offered in seven anodized colors so riders can dial in their perfect look while trusting the long-term durability Wheels Manufacturing is known for.Perfect for riders who demand reliability and performance from their.